A zener diode is normally used for voltage regulation. A zener diode, however, can also be used for high voltage spike protection if connected ________
A) Positive to anode, negative to cathode
B) Positive to cathode, ground to anode
C) Negative to anode, cathode to a resistor then to a lower voltage terminal
D) Both A and C
B
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If a pipe has to move in two directions at the same time, such as up a wall and across the floor, the movement is considered which of the following?
a. true offset b. rolling offset c. advance offset d. basic offset
Gerbils are also known as ____________________ rats
Fill in the blank(s) with correct word
Technician A says that a visual inspection can determine if brake linings contain asbestos. Technician B says that it is OK to blow brake dust with compressed air. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Which of the following is TRUE of the fan switch?
A) The fan switch is not separate from the burner. B) The fan switch starts the blower when the burner starts. C) Modern fan switches cycle the fan based on time. D) The fan switch relies on a temperature cycle in modern furnaces.