CM411 Midterm Mechanical/Plumbing Exam Questions With Accurate Solutions Newest Update 2024
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Course
CM411 Mechanical/Plumbing
Institution
CM411 Mechanical/Plumbing
Which is not an element of comfort? - CORRECT ANSWER-Noise
What are three elements of comfort? - CORRECT ANSWER-Temperature
Humidity
Circulation
Normal ventilation for a building is? - CORRECT ANSWER-20 CFM per person
Comfort for heating and cooling is usually attained with a relative hu...
CM411 Midterm Mechanical/Plumbing
Exam Questions With Accurate
Solutions Newest Update 2024
Which is not an element of comfort? - CORRECT ANSWER-Noise
What are three elements of comfort? - CORRECT ANSWER-Temperature
Humidity
Circulation
Normal ventilation for a building is? - CORRECT ANSWER-20 CFM per person
Comfort for heating and cooling is usually attained with a relative humidity of... -
CORRECT ANSWER-50%
Water flow is typically expressed in which units? - CORRECT ANSWER-Gallons per
Minute
Liquids traveling through a steel pipe... - CORRECT ANSWER-Has pressure loss due
to friction with the walls of the pipe
Has pressure loss due to changes in direction at elbows & tees
Air filter are placed prior to air movement equipment in order to... - CORRECT
ANSWER-Keeps material and debris from entering air movement equipment
What indicates when moisture will start to condense? - CORRECT ANSWER-Dew point
Sensible heat is measured using - CORRECT ANSWER-Dry bulb temperature
, If the Inlet to the pump does not have enough head - CORRECT ANSWER-The pump
will begin to cavitate
Major components of forced air furnace include - CORRECT ANSWER-Blower
Heat Exchanger
Controls
What is not a major component of forced air furnace? - CORRECT ANSWER-Registers
and Grills
Key design issue for steam piping layout is... - CORRECT ANSWER-Sloping piping to
prevent pockets of condensate
Natural draft cooling towers DO NOT - CORRECT ANSWER-Have fans at the base of
the tower
Have fans at top of tower to induce air through tower
Use water flow to induce air flow
What component is part of the typical outdoor condenser unit? - CORRECT ANSWER-
Refrigerant compressor
Boiler water blowdown is used to... - CORRECT ANSWER-Reduce contaminants in
boiler water
What type of furnace use condensing heat exchangers? - CORRECT ANSWER-High
Efficiency
Leaks in forced air furnace heat exchanger causes what main problem? - CORRECT
ANSWER-Allows combustion gas into conditioned space
The coils outside a refrigerator are the - CORRECT ANSWER-Condenser coils
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