Which of the following steps for testing the safety of a trailer hookup applies ONLY to rigs without independent brake control?
A. move trailer protection valve from "normal" to "emergency"
B. release the clutch to the friction point
C. release tractor brakes, depress clutch, and shift into lowest forward gear
D. gently pull forward against the locked trailer brakes
Answer: A
You might also like to view...
Answer the following statement(s) true (T) or false (F)
1. All motor circuits are protected for both overcurrent and overload conditions. 2. Overcurrent is a low intensity fault current condition caused by accidental short-circuits and ground-faults. 3. Overload is a lower intensity current condition caused by a mechanical overload on the motor. 4. Overload protection is provided before the contactor unit and after the motor being protected. 5. The overload unit controls the normally closed set of overload contacts, which are connected in the control circuit.
For signal sequence in the accompanying image, the SNR equals _____ (xx.x) dB.
Fill in the blank(s) with the appropriate word(s).
If a pipeline with a slope of 2% is 618 feet long, what is the total fall?
a. 6.18 feet b. 9.27 feet c. 12.36 feet d. 15.45 feet
It is possible to have a leak-free system when under a vacuum but still leak when the system pressure is above atmospheric.
Answer the following statement true (T) or false (F)