Tech A says a humming noise in the differential is often caused by improper tooth contact between the drive pinion and ring gear. Tech B says the humming noise might be the differential pinion and side gears. Who is correct?
A. a only
B. b only
C. both a and b
D. neither A nor B
A. a only
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After heating a fixed volume of gas at 50 psia from 300° R to 600°R, its pressure will be:
A) The final pressure cannot be determined without knowing the volume. B) 100 psia because the pressure and temperature vary directly. C) 50 psia because pressure and temperature are independent variables. D) 25 psia because the pressure and temperature vary inversely.
The type of hose testing conducted by the fire department is called:
A. acceptance. B. pressure. C. service. D. fire ground.
____________________ is defined by NEMA as a system of braking in which the motor connections are reversed so that the motor develops a counter torque that acts as a retarding force.
Fill in the blank(s) with the appropriate word(s).
A practical voltmeter has an internal resistance rm. What is the value of rm if the meter reads 11.81 V when connected as shown in Figure P2.75. Assume VS = 12 V and RS = 25 k?.
Find:
The internal resistance of the voltmeter.