When an internal engine compression brake is actuated, at what point is cylinder compression dumped into the exhaust?
A. around TDC on compression stroke
B. at the beginning of the compression stroke
C. at the completion of the exhaust stroke
D. gradually throughout the compression stroke
Answer: A
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When checking combustion efficiency, which measurement should be taken first?
A) Draft B) Smoke C) Stack temperature D) Oxygen
Measurements taken by using the mass flow rate use __________ to determine the reading.
A. volume B. weight
Thermal resistance (R-factor) is the mathematical result of _____.
a. insulation thickness divided by the K-factor b. K-factor divided by ambient temperature c. ambient temperature multiplied by K-factor d. relative humidity multiplied by ambient temperature
For a piece of equipment to be ____________ means safety has been built into the design of the equipment.
Fill in the blank(s) with the appropriate word(s).