General section lines ____.
A. are evenly spaced
B. are also the coded section lines for cast iron
C. are not commonly used
D. both a and b
E. none of the above
Answer: D
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Before checking the switches in the circuit to a nonfunctioning load, the technician should first check:
A) The current draw of the nonfunctioning device. B) The resistance of the nonfunctioning device. C) The resistance of all the devices in the same circuit with the nonfunctional device. D) Line voltage, control voltage, and voltage to the nonfunctional component.
Why is the voltage of electricity increased for transmission over long distances?
A) It increases the resistance of the lines. B) It creates an alternating current. C) It reduces the amount of electricity loss. D) It speeds up transmission times.
ROM access time is defined as ________
A) the time it takes to get valid output data after a valid address is applied B) being the difference between the READ and WRITE times C) how long it takes to program the ROM chip D) the time required to activate the address lines after the ENABLE line is at a valid level
What fan performance characteristics are shown on a typical fan curve?
A) Sound levels, bearing temperatures, and reluctance B) RPM, tip speed, and horsepower C) Pressure drop, efficiency, and horsepower D) Horsepower, RPM, and reluctance