CWEA Mechanical Technologist II Practice Test

These questions are part of the practice quiz. Start practicing

• What are some problem components in end-suction centrifugal pumps?
• What section of an MSDS gives safe exposure limits based on OSHA guidelines?
• What must be done to any worn spacers, shafts, bearings, or housings?
• What does kerf refer to in cutting processes?
• What does a low polarization index indicate in an insulation test?
• What is the current of a 120-volt circuit with a 1440-watt load?
• What type of system is most suitable for applications that require large quantities of water in spray booths?
• What is the primary purpose of an aftercooler in an air compressor?
• Where is the best source for information on necessary personal protective gear when handling chemicals?
• When ordering sheet steel, how should thickness be designated?
• What is the purpose of a logbook in maintenance?
• What is the best choice of work clothing fabric for electrical work?
• What type of current should be used for MIG welding?
• How frequently should rubber safety gloves be tested for integrity?
• In a centrifugal pump, what area contains the packing?
• What should be included in the controlling process to ensure operational efficiency?
• What does a power factor of 80% indicate about a motor?
• What is true about leakage when it comes to packing for pump sealing?
• What two factors define the rated capacity of a pump?
• What item is critically documented in a logbook for maintenance success?
• What best describes a pressure head?
• What kind of materials would commonly involve the use of positive displacement pumps?
• What effect does a worn impeller have on the energy needed to pump the same volume of water?
• What adjustment method is used to maintain the clearance between the impeller and the wear ring?
• What characteristic makes end-suction pumps easily identifiable?
• What is the use of temperature-indicating devices to detect temperature changes in operating equipment called?
• How does CAL-OSHA define a confined space?
• What two components are contained within the water column of a lineshaft turbine?
• How can you reduce the load when starting an electrically driven centrifugal pump?
• What is a critical safety requirement when storing oxygen and fuel gas cylinders indoors?
• Which of the following is NOT a type of bearing?
• In MSDS documentation, what information is included in the hazardous ingredients section?
• What is a common responsibility involved in the organizing function?
• What component is primarily responsible for reducing turbulence in fluid pumps?
• Where do major maintenance problems in rotary pumps typically occur?
• In what type of system is unused hot water reheated along with cooler incoming water?
• What type of maintenance is the least sophisticated and typically used on noncritical equipment?
• What is the initial step in preparation for installation of machinery?
• What is the primary function of voltage in an electrical circuit?
• Chemical handling arrangements are determined by what key factors?
• Carbon Dioxide fire extinguishers are intended for use on what class of fires?
• What material should be avoided near oxygen cylinders during storage?
• What should you ensure when initiating a cut in plasma cutting?
• In a submersible pump, where is the motor typically located?
• What is used to transmit torque in lobe pumps?
• How does the number of teeth compare between the internal gear and the external gear in internal-gear pumps?
• What is the best type of valve to use for throttling, or when the valve must be opened and closed frequently?
• What is the simplest predictive maintenance procedure that requires no tools or equipment?
• What type of pump is commonly used for engine oil systems?
• A power installation drawing typically shows what?
• Soda-acid fire extinguishers are recommended for use on what type of fires?
• What is the key aspect of directing in a utility organization?
• What do sealing devices prevent in pump operations?
• Which chart is commonly used for workflow visualization in problem-solving?
• Which of the following best describes a controlled hazardous material?
• What is a Parshall flume used to measure?
• What is one safety device designed to protect electrical circuits from overloads?
• What is the main function of codes and standards in preventive maintenance?
• What is a document that records a specific problem with a piece of equipment called?
• In a double suction pump, how is the fluid drawn in?
• What type of bearings are typically used in multistage pumps operating under high pressures?
• Which mechanism can effectively reduce water hammer?
• Pumps handling fluids that can form flammable gases utilize what type of system?
• What aspect of argon makes it suitable for TIG welding?
• What is the formula for absolute pressure in relation to gauge pressure?
• What is the function of a low-pressure check valve on an anaerobic digester?
• Which of the following best describes a capacitor?
• What phenomenon may occur due to the sudden shutting of the discharge valve of a centrifugal pump?
• What tends to occur in systems handling abrasive materials?
• What happens to the motor's amperage draw when the discharge valve on an electric motor driven centrifugal pump is closed during pumping?
• An SCBA is primarily used for what type of work?
• Why is a troubleshooting report filled out immediately after a problem is solved?
• What category rating would be used on a meter for service drop?
• What is the result of excessive leakage in a pump sealing?
• What is the first step to take before performing maintenance on an operating piece of equipment?
• What is the result of having a worn impeller on a centrifugal pump regarding energy efficiency?
• What is a common cause of machine failure associated with bearing issues?
• Many solid packed stuffing boxes have a packing gland for what purpose?
• What do the letter designations of V-belts from A through E represent?
• What term is used for short sections of pipe that are threaded on both ends?
• The reducer located on the suction side of a horizontally mounted centrifugal pump should be what?
• Which of the following factors is critical for the safety of electrical installations?
• At what oxygen level by volume is oxygen deficiency classified?
• Which of the following terms describes the measure of the potential energy of the fluid in a pump system?
• Why would a technician prefer a split mechanical seal for a pump installation?
• What type of fire extinguisher is best for electrical fires?
• What component allows fluid to enter the pumping unit in a lineshaft turbine pump?
• What type of pump is commonly utilized for transporting high-viscosity materials?
• How does a foam-type fire extinguisher accomplish its function?
• What is the proper shielding gas to use for penetrating welds on steel in MIG welding?
• What are the two main types of antifriction bearings?
• What type of chart is used to condense lengthy descriptions into a simpler format for problem solving?
• What is the primary function of a pneumatic tool lubricator?
• What type of testers are used to locate internal flaws or cracks in metal?
• What is the role of CO2 in MIG welding?
• What type of distribution system is most effective at supplying hot water continuously?
• What is the importance of proper oxygen cylinder storage?
• What is the typical operating efficiency of inclined screw pumps?
• When a pump is operational, the conditions are termed what?
• Why is it important to have insulated piping for certain products in an industrial plant?
• What type of fire extinguisher is best suited for an electrical motor fire?
• What is the purpose of a steel trowel?
• In what area does directing primarily focus when managing a utility?
• What role does the layout of a plant play in the chemical handling arrangement?
• Would restricting the discharge or suction side of a centrifugal pump cause cavitation?
• Which maintenance issue is often a major cause of problems in pumping systems?
• Why is argon favored as a shielding gas in TIG welding?
• What are the two primary types of anti-friction bearings?
• A rate of flow of one coulomb per second is called what?
• What does proper lubrication for mechanical systems entail?
• Which combination of gases might be used for welding both stainless and mild steels in MIG welding?
• Which shielding gas is recommended for aluminum MIG welding?
• Wires and cables can be classified according to their what?
• For a flanged connection to be watertight, the faces should be what?
• Prescription eyeglasses suitable for industrial use must be approved by which agency?
• In welding, what is the purpose of using a protective gas?
• Pneumatic tools should all be equipped with what?
• What does a groover do in concrete finishing?
• What is the best device to check the condition of cable insulation?
• Which testing method involves using significantly higher voltages than operating conditions?
• Why might the absence of an unpleasant odor in a manhole or lift station be misleading?
• What component does a double volute casing contribute to in a pump?
• What does GFI stand for in electrical safety?
• Which electrical device is utilized to increase line voltage?
• What type of maintenance might be necessary for bearings in rotary pumps?
• How should oxygen cylinders be stored with respect to fuel-gas cylinders?
• Which shielding gases are typically used for welding nonferrous metals in MIG welding?
• Which type of stepladder is forbidden while working on electrical equipment?
• What is the primary purpose of troubleshooting reports?
• What is dry ice primarily used for in a pump shop?
• What is a common symptom of a damaged impeller in a centrifugal pump?
• Which electrode is recommended for TIG welding aluminum?
• What clearance should comminutor teeth be set with?
• Which type of testers are used to apply a test voltage that is several times higher than the specified operating voltage?
• What is the importance of selecting the correct lubricant for mechanical systems?
• What kind of equipment makes a preventive maintenance (PM) effective?
• What category rating would be used on a meter for protected electronic equipment?
• For piping chemical products, what materials are necessary for insulated piping systems?
• What is an effective method for troubleshooting a drive belt that is squeaking?
• Which of the following is a potential hazard when fluids can form flammable gases in pumps?
• What safety practice should be followed when lifting heavy loads with rigging?
• Which statement is true regarding the operation of most external-gear pumps?
• What safety precaution should you take when working with digester gas?
• In TIG welding, which type of electrode should you use for steel and stainless steel?
• What is the most common wire type used for aluminum MIG welding?
• Systems designed for handling greases, heavy mastics, cement, and concrete are referred to as what?
• In welding, what role does the inert shielding gas serve?
• What lubricates most metering pumps?
• In arc-welding, what do we call the melting chemicals that create a protective barrier for the weld?
• What is a thread chaser specifically used for?
• What is the insulation in a capacitor called?
• To cut the ends of a number of lengths of wood at 45 degree angles, what would be best to use?
• What should be ensured when mounting a bearing in a pump assembly?
• What is one characteristic of rotary pumps?
• What two issues are commonly faced in paint pumping systems?
• What is the primary purpose of a job interview?
• For welding stainless steel and sometimes steels in MIG welding, which gases are frequently used?
• What type of pumps discharge fluid on both strokes of the piston?
• In a vertical mount piston pump, where does the lubricant enter the cylinder during the piston's downstroke?
• Which type of impeller is known for being the most efficient in energy transfer?
• What type of propeller pump moves fluid partly by centrifugal force?
• Which of the following can cause an engine to stall?
• How often is lubricating oil analysis typically performed?
• What aids in the repair of solids pumping systems?
• How many grams are in one cubic centimeter (cc) of water?
• What shielding gas is recommended for TIG welding on steel, stainless, and aluminum?
• Which part of an electric motor is likely to wear out most frequently?
• What type of pumps are most metering pumps classified as?
• How do rotary pumps move fluid?
• What is the primary function of organizing within an agency?
• What type of bearing design is commonly used to reduce friction between rotating parts?
• Is the tungsten electrode used in TIG welding a filler and/or consumed?
• What is the primary purpose of a packing in a pump?
• Which of the following is a reason to always check for oxygen levels in confined spaces?
• Does making the transition from operator to supervisor require a change in attitude?
• What is used to adjust the clearance between the impeller and the wear ring in raw wastewater pumps?
• With the pump turned off, what is the difference in elevation between the suction and discharge liquid levels called?
• What is a key benefit of using CO2 in MIG welding?
• Which impeller design imparts higher velocity to the fluid, curved or straight vane?
• Pumps that are driven by air pressure are also known as what?
• What does EMT stand for in electrical installations?
• What is a manifold in piping systems?
• What is the main hazard associated with electrical energy?
• What kinds of bearings are used when a motor is to be mounted horizontally?
• When working with electricity, what is especially important to inspect on tools?
• What material is best suited for cleaning a comminutor?
• What is the name for a fastener that has threads at both ends?
• Which type of pump design is generally preferred for large volumes of liquid?
• Is it true or false that structure job interview questions should avoid simple yes and no answers?
• What is the purpose of a float in concrete work?
• Large pumps are typically installed on which type of base?
• What are the four basic types of valves that are commonly used in air compressors?
• What kind of maintenance is primarily associated with scheduling tasks?
• What should the pressure settings for a pressure relief valve on an anaerobic digester be?
• What is the formula for calculating current using voltage and resistance?
• Why are accurate records essential in a utility setting?
• Why is it important to notify affected employees before locking out equipment?
• What is the most probable cause of an air compressor delivering below capacity?
• What is the current of a circuit consuming 625 watts through a 12.75-ohm resistor?
• Which type of valve is not typically associated with double acting pumps?
• What does a wheel dresser do to a grinding wheel?
• Which term describes the condition of a machine that has uneven support at its feet?
• What is a defining characteristic of gas tungsten arc welding compared to other welding methods?
• What type of load is grease primarily used to lubricate at low to moderate shaft speeds?
• What is the most common reason for the noisy operation of electric motors?
• What is a common consequence of improperly maintained pumping systems?
• In alignment work, which component is typically shimmed?
• When tightening bolts on a flanged connection, what is the recommended procedure?
• Which substance should be used to clean the armature windings on a motor?
• Which component should be replaced when attaching a new chlorine cylinder?
• In mounting a bearing, which ring should be primarily applied with force?
• What components make up the power end of a power pump?
• What type of rigging should be used to lift objects with sharp edges?
• What may state and local authorities utilize when establishing preventive maintenance requirements?
• What type of load capacity do single-row, deep groove ball bearings exhibit?
• How often should pumps generally be greased to ensure proper operation?
• What is the most commonly used shielding gas in TIG welding?
• What is the primary characteristic of thrust loads in mechanical systems?
• What is the primary advantage of a split case pump design?
• What is the primary purpose of a utility's organization plan?
• What is the term for the sum of total static head, head loss, and velocity head?
• Predictive maintenance is best described as?
• During the operation of a packing gland, what is primarily adjusted to control leakage?
• What is a centrifugal fan housing commonly referred to as?
• When a circle is too large to be drawn with a pair of dividers, what should you use?
• What is a tapered thread on a pipe?
• When is a piece of equipment considered LOTO and safe to work on?
• What are the two major parts of a maintenance program?
• What is the purpose of a positive displacement pump in an engine oil system?
• What shape is the case of a regenerative turbine?
• If the impeller of an end suction centrifugal pump is damaged, what is reduced?
• What document is filled out for each equipment breakdown immediately after resolving the issue?
• What is the most common cause of tripping a circuit breaker on a centrifugal sewage pump?
• What is the most critical item in an emergency response plan for a small water utility?
• What analysis focuses on the size, frequency, shape, and composition of particles from worn parts?
• What packing materials do petroleum pumps operating at high temperatures typically use?
• What is a pump?
• A metering pump displaces a specific volume of fluid during a specified what?
• What type of accidents constitutes the majority of incidents in general industry?
• What condition results when a machine's feet do not fully contact the base plate?
• What is the main advantage of using a shaft sleeve on raw wastewater pumps?
• Where are oil soaked rags best stored?
• What type of saw is specifically designed to cut wood with the grain?
• What is the term for monitoring equipment at specific time intervals?
• Which maintenance practice can help prevent misalignment during operation?
• When a pump is inactive, what is the state of conditions described as?
• What should a supervisor do to address a performance issue with an employee?
• What should you do before operating a machine?
• Which type of load is oriented perpendicular to the shaft?
• What does planning entail in a utility's operation?
• What factor affects the efficiency of a pump?
• How is friction defined in machine components?
• Which component is not typically found in a gear pump?
• Which of the following defines the efficiency of a pump?
• What type of pump always requires priming?
• What type of check should be performed after completing the assembly of bearings?
• What does the term "electromotive force" commonly refer to in electrical terminology?
• In an external gear pump, fluid is drawn through which part?
• In direct acting pumps, what function does the fluid end serve?
• In centrifugal pumps, what is the significance of the suction side?
• What is the most likely cause of a pump becoming noisy and vibratory?
• What is the main driving force for direct acting pumps?
• What role does sealing fluid play in a stuffing box that circulates?
• Which type of wrench is typically used to tighten a pipe?
• Applications that require chemicals to be metered or pumped under high pressure necessitate what type of pump?
• In pumps with valve-plate fluid ends, where are the discharge valves typically positioned?
• What is a characteristic of improper lubrication in an engine?
• What typically lubricates gear pumps?
• When a pump is not producing full capacity flow, what is one thing you can check?
• What is the best approach to resolving a disciplinary problem?
• A three-phase, 460-volt motor draws a current of 52 amperes. What is the horsepower if it has an efficiency rating of 94% and a power factor of 80%?
• Holes are usually countersunk when installing what?
• What safety precaution should you take when making repairs on a mechanical rack?
• What indicates a lack of thorough planning in utility management?
• Which tool is best suited for leveling surfaces?
• When ARC welding with DC straight polarity, which pole is the work?
• High-viscosity materials resist which type of force?
• Which type of misalignment occurs when shafts are parallel but not on the same axis?
• What does LOTO stand for in industrial safety?
• What is the purpose of a cage in anti-friction bearings?
• Which kind of propeller pump moves fluid only by the propelling or lifting action of the blades on the fluid?
• What is a key advantage of a split mechanical seal over a cartridge mechanical seal?
• Which of these is a key component in workplace safety training?
• Which gas mixture is used in MIG welding for its cost-effectiveness and speed?
• When considering an accident that resulted in an injury, what is the most valuable piece of information?
• Rubber safety blankets should be tested how often for safety compliance?
• What does authority in a job context refer to?
• In a regenerative turbine pump, the impeller is a wheel with a large number of what on both sides of the rim?
• To achieve a stable arc in TIG welding, which gas's properties are most beneficial?
• The vanes of a mixed-flow impeller discharge the fluid in which direction?
• What is an on-off switch with overload relays called?
• Should safety training be provided for new employees on their first day of employment?
• How can the pressure in a lineshaft turbine pump be increased?
• What are the two types of positive displacement air compressors?
• Why is it important to estimate the weight of a load during rigging operations?
• In metering pumps, what can affect the accuracy of fluid displacement?
• What is the main function of a pump stuffing box?
• Regenerative turbines cannot pump liquids that contain what?
• What is the primary goal of using personal protective equipment (PPE)?
• What is the primary purpose of a shaft sleeve?
• What is included in the process of job preparation?
• To maintain a close fit within a metering pump, the pumped fluid is usually what before entering the pump?
• What is the interrupting current of a GFIC receptacle?
• Which metals are commonly welded using TIG welding?
• How is alternating current characterized?
• In gas metal arc welding, what is the purpose of the shielding gas?
• Which of the following is essential for effective planning in an organization?
• How does the flow capacity of a pump change with the speed of the pump?
• What tool is used to true, clean, and shape a grinding wheel?
• How can cathodic protection be achieved?
• What role does pressure play in the operation of a pump?
• What is the relationship between an electric current and a magnetic field called?
• Which type of misalignment is specifically concerned with the angle of the machines?
• Pumps designed for suction lift conditions typically use what kind of stuffing box?
• In most pump installations, how does the size of the discharge pipe compare to the suction pipe?
• What safety measure is important when chipping slag after stick welding?
• In mechanical drawings, what does a dashed line represent?
• In a circuit, what must happen for current to flow?
• Where should a burnt-out fluorescent bulb be placed during replacement?
• Which type of test is essential for routine motor maintenance over its operational life?
• How is the connecting rod of a plunger metering pump typically used?
• True or False: The public expects utility managers to protect the environment of their communities with minimal investment.
• What is the primary reason you should never lift or carry an electric hand tool by its service cord?
• What is the purpose of an edger in concrete work?
• What key component is located within a pump casing?
• What type of bearings are characterized by being quieter and less costly if properly lubricated?
• What happens to the fluid in a metering pump as it flows through its system?
• What results from a glaze on a belt, causing loss of power transmission?
• How can an organization select the most suited job candidates?
• A thermal imager detects heat patterns in which wavelength spectrum?
• If the weight of an object is unknown during a rigging operation, how should it be obtained?
• What is seal water used for in pumps?
• How is angular misalignment typically corrected?
• What is the main function of a bourdon-tube gauge?
• What is the most suitable material for piping corrosive sludge gas?
• What does the acronym NEC stand for in electrical work?
• What is installed between two pipe flanges to seal the connection?
• During what condition is it most effective to use an open or semi-open impeller pump?
• What is a key characteristic of a centrifugal pump?
• What is the main purpose of a deadman switch on power tools?
• If a pump's lubricant is not compatible with a new installation, what should be changed?
• What is the purpose of straining or filtering fluid before it enters a metering pump?
• What is a parallel thread on a pipe?
• What current type should be used for TIG welding aluminum?
• The NEC defines a qualified person as someone who?
• What current should be used for TIG welding on steel and stainless steel?
• The NEC classifies environments that contain flammable vapors and gases as which class?
• What is the capacity in gallons of a wet well measuring 30 feet deep, 25 feet wide, and 35 feet long?
• What is a key consideration when adding personnel in utilities?
• Which of the following are basic elements of a hazard communication program?
• What is the purpose of small bypass valves around large gate valves?
• If a large amount of hot water is required in one specific area, which distribution system is the best choice?
• Does adding another impeller in a multi-stage pump increase the volume output?
• What feature do fluid cylinders in reciprocating pumps commonly have?
• What is another name for shielded metal arc welding?
• What can cause pitting and material build up when incompatible materials are used in a pump?
• What is the term for the amount of potential difference a layer of insulation can withstand?
• What is an important environmental characteristic to consider when plasma cutting?
• What is critical when using a flame trap in a gas system?
• Which of the following is primarily used for cutting metal sheets?
• What is the typical purpose of scheduled monitoring?
• What type of turbine pump is commonly used as a booster pump?
• What type of AC motor is most commonly used at a treatment plant?
• How are thrust loads defined in relation to the shaft?
• How does an impeller function in a pump?
• True or False: The selection and examination process for applicants should be limited to relevant job-related activities.
• True or False: Planning is one of the most important but easiest functions of utility management.
• In arc welding, what does the term arc length refer to?
• What are some common materials used in pump packing?
• What is the primary shielding gas used in gas tungsten arc welding?
• In a centrifugal pump with a closed impeller, internal leakage is primarily restricted by what component?
• When the eye of a pump impeller is positioned above the level of the fluid being pumped, this condition is known as what?
• What is the best combination of gloves to wear for performing electrical work?
• What is the best method to remove glazing from a squeaking drive belt?
• When using sump pumps, what must be installed to prevent large particles from reaching the pump impeller?
• Which part of a centrifugal pump is responsible for supplying energy to the fluid?
• What advantage does predictive maintenance offer over breakdown maintenance?
• How can sticking valves in an engine be freed without disassembly?
• Why is establishing an alternate water source critical for small water utilities?
• What does anticipating other tasks or problems achieve?
• What distinguishes a synchronous motor from an induction motor?
• What materials are most commonly used in shielded metal arc welding?
• The operation of a centrifugal pump is primarily based on which principle?
• In which welding process are mixtures of argon, oxygen, and CO2 commonly utilized?
• What information is necessary to calculate the theoretical flow from a pump?
• The function of diffuser vanes is to _____________ the stirring action and to __________ the flow of fluid into the discharge pipe.
• What are the common or most popular uses for oxyacetylene gas welding?
• What is the primary role of the impeller in a centrifugal pump?
• What is the device on a power tool that cuts off power when released called?
• What is the most critical aspect of piping installation for pumps?
• Lack of fluid pressure in a running reciprocating pump often indicates what is worn?
• What surface would be unsafe to use a carpenter's hammer on?
• What is the function of pump bearings?
• What is the primary function of the tag and lockout disconnect switch in LOTO?
• What immediate action should be taken when an electrical shock occurs?
• Which of the following is essential for the safe operation of machinery during maintenance?
• What safety precaution should you take when grinding tools?
• Who is responsible for monitoring the supply of spare parts, tools, and test instruments?
• What is considered the killer of electrical shock?
• In a close-coupled pump design, where is the impeller mounted?
• Using Ohm's law, what is the current in amperes of a 120-volt circuit with a resistance of 60 ohms?
• What is considered the best protection against infections and infectious diseases?
• What effect does making job planning a group effort have on workplace productivity?
• How do taps and thread chasers differ?
• If your centrifugal pump was discharging properly and now it is not, what is likely the issue?
• What happens to the horsepower required to drive a regenerative turbine pump when the head pressure drops and the fluid flow increases?
• In what situation would an SCBA not be appropriate?
• What potential issue can arise if rags or debris get lodged in a centrifugal sewage pump?
• What does controlling involve in a utility's management?
• Which type of valve is most widely used among smaller-sized pipe valves?
• Brake horsepower is greater than liquid horsepower by a factor representing what aspect of the pump?
• Is LOTO (Lockout/Tagout) required when gathering vibration data from a shaft bearing?
• What is a common measuring tool used in woodworking to ensure accuracy?
• What role do instrument transformers play in electrical measurement?
• What is often the source of most bearing failure?
• Are metering pumps sensitive to temperature changes in the fluid they pump?
• What is the correct name for "voltage" or electromotive force?
• How are dual-voltage motors typically connected?
• What is an engine commonly defined as?
• What is the best tool to scribe a line parallel to the straight edge of a sheet of metal?
• What is the best method of putting out a gasoline fire?
• What is submerged arc welding primarily protected by?
• What type of valve requires only a quarter turn to open or close?
• Which type of welding uses a non-consumable tungsten electrode?
• Which type of pump is generally favored for highly viscous fluids?
• What is the minimum wire size recommended for supplying power to a 1 HP motor?
• Which of the following best describes a squirrel-cage induction motor?
• A holding tank requires chlorination to 2.5 ppm. If the tank holds 3.5 MGals, how many pounds of chlorine will be needed?
• What function do surface skimming sprays serve?
• In certain cases, fluid viscosity can be reduced by what method?
• When MIG welding, what is the main difference between a pushing technique and a pulling technique?
• Which is a critical factor when performing maintenance on machinery?
• Which type of pump typically does not require priming before use?
• What is the function of a GFIC receptacle?
• Which lubricant is typically used for light to moderate duty in high-speed pumps?
• A tool that is generally used to slightly elongate a round hole in scrap iron is what?
• When dealing with screw threads, UNC stands for what?
• Where is manufacturer information traditionally found?
• In MIG welding, which gas is primarily used for welding steels?
• What is the recommended action if one of the outer belts of a matched set of 3 V-belts becomes badly frayed?
• In high-speed equipment, what type of lubricant provides the best performance under moderate load?
• In an internal-gear pump, which gear is considered the driving gear?
• Pumps driven by an electric motor or internal combustion engine are typically referred to as what?
• When aligning a piece of equipment, what should you do first?
• What is a primary function of a stuffing box in pump operations?
• What tool is recommended for striking the oxyacetylene torch?
• What device is commonly used on mechanical equipment to prevent overloading?
• What is the purpose of the seals in a pump system?
• True or False: Operators should take on responsibilities beyond their authority to promote growth.
• What is the most common type of pumping system found in industrial plants?
• What is the purpose of a pipe reducer?
• When a flow meter does not read properly, what is the first thing you should check?
• The discharge head of a vertical turbine pump is usually made of what material?
• What best describes preventative maintenance for plant equipment?
• What can be inferred if a centrifugal pump sounds as if it is pumping rocks?
• Gases that have no odor can pose what type of risk in confined spaces?
• What is the most common cause of engine valve sticking?
• Fluids can be moved through pipes raised to higher elevations using what type of equipment?
• What is the primary design feature of an external gear pump?
• What is the best method for lubricating roller bearings?
• During retensioning, what is determined by using a straightedge or string stretched across the pulley tops?
• What device is used to reduce high voltages and currents to safe values for measurements?
• Why is it important for utilities to maintain accurate records?
• What does wear particle analysis provide insights into?
• What should be examined first by a utility planning to add personnel in response to changing conditions?
• What is the impact of increasing resistance in a circuit with constant voltage?
• What is another term that can refer to the static head in a pumping system?
• Which method is used to visually check equipment's condition without tools?
• In what situations would pneumatic ejectors be used?
• Which component is essential for balancing pressure in large valve systems?
• What effect does heating fluid have on its properties in a pumping system?
• What is the primary purpose of thrust bearings in pumps?
• What type of pump features the pump shaft directly coupled to the motor shaft?
• What type of motion does a reciprocating pump operate with?
• How much more water can a 6-inch diameter pipe carry compared to a 3-inch diameter pipe?
• What should you do if you receive written instructions that you don't understand?
• What is always necessary when working in a confined space?
• Which type of saw is best utilized for cutting metal?
• What is the main difference between MIG welding and flux core arc welding?
• What type of metals can be welded using TIG welding besides aluminum?
• What is one important safety precaution to take when repairing electric equipment?
• During gas metal arc welding, what type of wire feeding mechanism is typically used?
• What type of work is identified during periodic inspections or maintenance tasks?
• What is the main purpose of using a fuse in an electrical circuit?
• What is the amp-load of a three-phase, 0.5-hp, 230-volt motor with an efficiency rating of 92% and a power factor of 80%?
• Which action can cause water hammer in a piping system?
• In a circulating stuffing box system, the sealing fluid serves what dual purpose?
• What type of test checks motor insulation over the life of the motor?
• How should the tool rest on a grinder be positioned to prevent stock from getting caught?
• What is a common application for pneumatic pumps?
• What is a tamper used for in concrete work?
• What do pump bearings primarily support and help reduce in mechanical systems?
• Of the types of fire extinguishers, what is a soda-acid extinguisher NOT appropriate for?
• What is the primary purpose of a flame trap in gas lines?
• In vertical turbine pumps, how is impeller clearance adjusted?
• The casing of a pump encloses the pump along with which additional component?
• What is the electric cost for operating ten 400W lights and one 150W sign for 30 days at $0.095 per kilowatt hour?
• What is backlash on a gear?
• What is the most popular welding process in use today?
• What is the purpose of the flux in flux core arc welding?