When running a diesel engine inside a service facility, which of the following is recommended?
A. use of exhaust extraction pipes
B. open the doors wide
C. use a fan to disperse fumes
D. run the engine only at low idle
Answer: A
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Building separation joints in a long rectilinear building are generally located at every
A) 250 ft on center. B) 500 ft on center. C) 400 ft on center. D) 350 ft on center. E) none of the above.
Normally ____________________ contacts must be checked with the device de-energized.
Fill in the blank(s) with the appropriate word(s).
What was the most commonly used refrigerant gas for geothermal pumps for almost one hundred years?
a. chlorofluorocarbons (CFCs) c. carbon dioxide (CO2) b. hydrogen sulfide (H2S) d. methane (CH4)
The magnetic fields generated in the rotor and stator of a motor causes the rotor to be pushed around the shaft.
Answer the following statement true (T) or false (F)