When looking at a solenoid with an oscilloscope, what event often follows applying or removing power from the coil windings?
A) Voltage drop B) Voltage spike
C) Diode ripple D) Decreased resistance
B
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What will be an ideal response?
Technician A says that a vacuum leak can cause a rough idle or stalling. Technician B says that spark knock (ping or detonation) is often caused by a too rich air-fuel mixture or an excessively low engine operating temperature. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Industrial selector switches are similar to electronic rotary switches
Indicate whether the statement is true or false
A series RL circuit contains two resistors. The resistors are 60 ? and 30 ?. When calculating the circuit values, the total resistance used is _____.
A. 30 ? B. 60 ? C. 80 ? D. 90 ?