One main advantage that multi disc type brakes have over other types of hydraulically applied foundation brakes is:
a. they will apply faster
b. they are easier to repair
c. they are air cooled
d. they are sealed from the environment
D
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Which of the following is true of a cooled exhaust gas recirculation (C-EGR) system on a truck diesel engine?
A. lowers HC emissions B. lowers NOx emissions C. lowers both HC and NOx emissions D. improves engine power
Sheep can be produced on grass and little grain
Indicate whether the statement is true or false
A dc, separately excited motor has a load torque of 140 Nm and a frictional torque of 10 Nm. The motor is rated at 240 V. The armature resistance of the motor is 1 ?. The motor speed at the given load is 600 rpm. Ignore the field losses and calculate the motor efficiency.
What will be an ideal response?
End grinding of the band ends before welding should be done:
A) On each end separately B) On the pedestal grinder C) With the teeth opposed D) With the teeth on the same side