verified solutions
10; 11.5 - correct answers-Boiler water pH should be between ____ and ____.
100,000 - correct answers-A therm is a unit of heat energy equivalent to ____ Btu.
15 - correct answers-A low-pressure boiler is a boiler that has an MAWP of up to ____ psi.
34.5; 212 - correct answers-A boiler horsepower is the power available from the evaporation of ____lb
of water per hour at a feedwater temperature of ____F.
accumulator - correct answers-A(n) ____ is a container in which fluid is stored under pressure.
air-cooled - correct answers-____ condensers are the most common condensers used in refrigeration
systems.
alternating - correct answers-____ current is current that reverses its direction of flow at regular
intervals.
amperes - correct answers-Current is measured in ____.
anti-friction - correct answers-A(n) ____ bearing is a bearing that contains moving elements, which
provide a low-friction support surface for rotating on sliding surfaces.
, arcing - correct answers-____ is the discharge of an electric current across a gap.
belt - correct answers-A(n) ____ is a flexible loop that connects two or more pulleys for transferring
rotational power.
bleed off - correct answers-A(n) ____ valve is a valve that allows the pressure against the discharge
valves to be released at startup.
brazing - correct answers-____ is a joining process that joins parts by heating the filler metal to
temperatures greater than 840F, but less than the melting point of the base metal.
BTU - correct answers-A(n) ____ is the quantity of heat required to raise the temperature of 1 lb of
water 1F.
cavitation - correct answers-____ is the process in which microscopic gas bubbles expand in a vacuum
and suddenly implode when entering a pressurized area.
closed - correct answers-A(n) ____ circuit is a circuit having a complete path for current flow.
condenser - correct answers-A(n) ____ is a heat exchanger that removes heat from high-pressure
refrigerant vapor.
conductor - correct answers-A(n) ____ is a material that has little resistance and permits electrons to
move through it easily.
contact - correct answers-A(n) ____ is the conducting part of a switch that operates with another
conducting part to complete (close) or break (open) a circuit.