What is the best method to repair a fractional horsepower motor that has bad bearings?
A. Replace the bearings.
B. Replace the bearings and shaft.
C. Add a capacitor to the circuit for added torque.
D. Replace the entire motor.
Answer: D
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What's the most important part of an electric furnace installation?
A) The size of the fan. B) The installation of the pump. C) The sizing of the wiring. D) The placement of the thermostat.
The drive shaft has a natural vibration frequency.
Answer the following statement true (T) or false (F)
A CS JFET amplifier has a gm of 3500 ?S, an RD of 5 k? and a 10 k? load. The voltage gain of this amplifier is
A) 5.25 B) 7.0 C) 11.7 D) 3.35
An automatic fluid feeder uses a small positive displacement pump operated by a pressure sensing switch to automatically pump fluid into the system when the pressure ____ a set minimum value.
a. reaches b. drops below c. exceeds d. is stored at