good electrical connection should _____.
a. last for approximately 90 days without any maintenance or repairs
b. be mechanically and electrically secure
c. have a resistance of no more than 25 ohms
d. have a resistance of no more than 13 ohms
b. be mechanically and electrically secure
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When operating a vehicle with a dual air brake system the driver's should
A. Let the vehicle warm up before driving to ensure that the fuel reaches the engine. B. Let the air compressor build up a minimum of 100 psi pressure in the primary and secondary systems before driving. C. Begin driving just after the vehicle starts.
Uneven rod bearing wear, and sometimes piston skirt wear, usually indicates a(n) ____.
A. tapered bearing journal B. valve clearance C. interference D. undersized crank
Geothermal heat pumps get most of their heat from
A) the electricity used to operate the compressor B) the surrounding air C) the ground D) a separate gas fired boiler
The number of threads per inch is referred to as _________
A) Grade B) Gauge C) Pitch D) None of these