INDUSTRIAL MAINTENANCE EVALUATION EXAM
QUESTIONS AND SOLUTIONS RATED A+
✔✔condenser - ✔✔A(n) ____ is a heat exchanger that removes heat from high-
pressure refrigerant vapor.
✔✔recovery - ✔✔Refrigerant ____ is the process of removing refrigerant from a system
and capturing it in a recovery cylinder, with no cleaning of refrigerant.
✔✔15 - ✔✔A low-pressure boiler is a boiler that has an MAWP of up to ____ psi.
✔✔34.5; 212 - ✔✔A boiler horsepower is the power available from the evaporation of
____lb of water per hour at a feedwater temperature of ____F.
✔✔100,000 - ✔✔A therm is a unit of heat energy equivalent to ____ Btu.
✔✔true - ✔✔T or F: A package boiler is preassembled at the factory.
✔✔primary - ✔✔____ air is air in the combustion process that regulates the rate of
combustion.
✔✔heat - ✔✔Grade is a coal classification related to size, ash, and ____.
✔✔sensible - ✔✔____ heat is heat that can be measured by a change in temperature.
✔✔field-erected - ✔✔A ____ boiler is a boiler that is constructed on-site.
✔✔scanner - ✔✔A flame ____ is a safety device that senses if the pilot light and/or
main flame is lit.
✔✔10; 11.5 - ✔✔Boiler water pH should be between ____ and ____.
✔✔dry - ✔✔____ lay-up is storage of a boiler with all water drained.
✔✔lubricant - ✔✔A(n) ____ is a substance that separates moving (bearing) surfaces to
reduce the friction and/or wear between them.
✔✔number - ✔✔The gear diameter determines the ____ of teeth on a gear.
✔✔follower - ✔✔A cam ____ is a machine part that contacts the cam and moves in a
designated path.
✔✔coupling - ✔✔A(n) ____ is a device used to connect a mechanical drive to a prime
mover.
, ✔✔belt - ✔✔A(n) ____ is a flexible loop that connects two or more pulleys for
transferring rotational power.
✔✔linear - ✔✔A(n) ____ bearing is a bearing designed to provide low-friction movement
of a mechanical device that moves in a straight line.
✔✔spread - ✔✔Pullers are sized by pressure, wear, and ____.
✔✔anti-friction - ✔✔A(n) ____ bearing is a bearing that contains moving elements,
which provide a low-friction support surface for rotating on sliding surfaces.
✔✔mechanical - ✔✔A belt drive is a(n) ____ drive system that uses a belt and pulleys
to transfer power between two surfaces.
✔✔rigid - ✔✔A(n) ____ coupling is a device that joins two shafts that are precisely
signed within a common frame.
✔✔V - ✔✔____-belts are the most frequently used for belt drive systems.
✔✔reservoir - ✔✔A(n) ____ is a container for storing fluid under little or no pressure.
✔✔displacement - ✔✔____ is the volume of a hydraulic oil moved during each
revolution, stroke, or cycle of a pump.
✔✔unloading - ✔✔____ is allowing a pump to run against little or no pressure.
✔✔accumulator - ✔✔A(n) ____ is a container in which fluid is stored under pressure.
✔✔pneumatic - ✔✔A(n) ____ system is a fluid power system that transmits energy
using a gas (typically compressed air).
✔✔bleed off - ✔✔A(n) ____ valve is a valve that allows the pressure against the
discharge valves to be released at startup.
✔✔gravity - ✔✔Single-acting cylinders have a piston in the cylinder that is extended by
applied hydraulic oil pressure and retracted by weight, spring, and ____.
✔✔force - ✔✔____ is anything that changes or tends to change the state of rest or
motion of a body.
✔✔pump - ✔✔A(n) ____ is a mechanical device that causes fluid to flow.
QUESTIONS AND SOLUTIONS RATED A+
✔✔condenser - ✔✔A(n) ____ is a heat exchanger that removes heat from high-
pressure refrigerant vapor.
✔✔recovery - ✔✔Refrigerant ____ is the process of removing refrigerant from a system
and capturing it in a recovery cylinder, with no cleaning of refrigerant.
✔✔15 - ✔✔A low-pressure boiler is a boiler that has an MAWP of up to ____ psi.
✔✔34.5; 212 - ✔✔A boiler horsepower is the power available from the evaporation of
____lb of water per hour at a feedwater temperature of ____F.
✔✔100,000 - ✔✔A therm is a unit of heat energy equivalent to ____ Btu.
✔✔true - ✔✔T or F: A package boiler is preassembled at the factory.
✔✔primary - ✔✔____ air is air in the combustion process that regulates the rate of
combustion.
✔✔heat - ✔✔Grade is a coal classification related to size, ash, and ____.
✔✔sensible - ✔✔____ heat is heat that can be measured by a change in temperature.
✔✔field-erected - ✔✔A ____ boiler is a boiler that is constructed on-site.
✔✔scanner - ✔✔A flame ____ is a safety device that senses if the pilot light and/or
main flame is lit.
✔✔10; 11.5 - ✔✔Boiler water pH should be between ____ and ____.
✔✔dry - ✔✔____ lay-up is storage of a boiler with all water drained.
✔✔lubricant - ✔✔A(n) ____ is a substance that separates moving (bearing) surfaces to
reduce the friction and/or wear between them.
✔✔number - ✔✔The gear diameter determines the ____ of teeth on a gear.
✔✔follower - ✔✔A cam ____ is a machine part that contacts the cam and moves in a
designated path.
✔✔coupling - ✔✔A(n) ____ is a device used to connect a mechanical drive to a prime
mover.
, ✔✔belt - ✔✔A(n) ____ is a flexible loop that connects two or more pulleys for
transferring rotational power.
✔✔linear - ✔✔A(n) ____ bearing is a bearing designed to provide low-friction movement
of a mechanical device that moves in a straight line.
✔✔spread - ✔✔Pullers are sized by pressure, wear, and ____.
✔✔anti-friction - ✔✔A(n) ____ bearing is a bearing that contains moving elements,
which provide a low-friction support surface for rotating on sliding surfaces.
✔✔mechanical - ✔✔A belt drive is a(n) ____ drive system that uses a belt and pulleys
to transfer power between two surfaces.
✔✔rigid - ✔✔A(n) ____ coupling is a device that joins two shafts that are precisely
signed within a common frame.
✔✔V - ✔✔____-belts are the most frequently used for belt drive systems.
✔✔reservoir - ✔✔A(n) ____ is a container for storing fluid under little or no pressure.
✔✔displacement - ✔✔____ is the volume of a hydraulic oil moved during each
revolution, stroke, or cycle of a pump.
✔✔unloading - ✔✔____ is allowing a pump to run against little or no pressure.
✔✔accumulator - ✔✔A(n) ____ is a container in which fluid is stored under pressure.
✔✔pneumatic - ✔✔A(n) ____ system is a fluid power system that transmits energy
using a gas (typically compressed air).
✔✔bleed off - ✔✔A(n) ____ valve is a valve that allows the pressure against the
discharge valves to be released at startup.
✔✔gravity - ✔✔Single-acting cylinders have a piston in the cylinder that is extended by
applied hydraulic oil pressure and retracted by weight, spring, and ____.
✔✔force - ✔✔____ is anything that changes or tends to change the state of rest or
motion of a body.
✔✔pump - ✔✔A(n) ____ is a mechanical device that causes fluid to flow.
