Switches should have how many ohms resistance when closed?
a. 0
b. 2
c. 25
d. 20
ANSWER: a
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Technician A says that an even firing V8 engine has a power stroke start every 90 degrees of crankshaft rotation. Technician B says that a four-cylinder engine will start a power stroke every 180 degrees of rotation. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Some vehicles are equipped to signal the computer whenever the power steering pressures increase so the idle speed can be increased to prevent stalling during turns at low speeds. What component signals the computer?
A) Rotary valve B) Power steering pressure switch C) Flow control valve D) Pressure relief valve
The proper travel angle (a push angle) for GTAW welding in the 5G position is _____
a. 0 to 5 degrees b. 10 to 15 degrees c. 15 to 20 degrees d. 20 to 30 degrees
Which of the following is a disadvantage of a totem-pole output?
A) When switching LOW to HIGH, Q3 is changing from saturation to cutoff. This transition takes longer than Q4's transition so for a short period a surge current is drawn from Vcc. B) When switching from HIGH to LOW, Q4 is changing from saturation to cutoff. This transition takes longer than Q3's transition so for a short period a surge of current is drawn from Vcc. C) When switching from LOW to HIGH, Q4 is changing from saturation to cutoff. This transition takes longer than Q3's transition so for a short period a surge of current is drawn from Vcc. D) Both A and C