What are typical operating temperatures in a DPF?
A. Exceeding 1,100degF (600degC).
B. Less than 400 degF (200degC).
C. Approaching 11,000 degF (600 degC).
D. DPFs operate at ambient temperatures.
Answer: A
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When calculating the service requirement for a particular building, the first step is to _____.
a. apply any demand factors b. calculate the total motor load c. determine all continuous loads d. determine the floor area of the building
When the evaporative condenser is used in cold climates, freeze protection must be provided in winter.
Answer the following statement true (T) or false (F)
A tandem axle trailer equipped with S-cam brakes has all four slack adjusters originally set with a 6-inch dimension from the clevis pin to camshaft. One slack adjuster is replaced, and because of a different hole arrangement in the new slack adjuster, it is set at 61/2 inches. Which of the following is more likely to result?
A. One of the four wheels will lock up ahead of the others under severe braking B. One of the four wheels will lock up behind the others under severe braking C. One of the service brake chambers will require more air pressure than the others D. One of the service brake chambers will require less air pressure than the others
After installing new brake pads, the pads require _____________ during the _______ ______ before returning the vehicle to the customer.
Fill in the blank(s) with the appropriate word(s).