Elec Quiz 3 Flashcards

1
Q

the minimum amount of current required to activate a relay is called

A

Pick up current

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2
Q

what is normally closed contact

A

a switch that is closed in the relaxed or unpowered position

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3
Q

what term denotes a double pole, single throw, normally open switch

A

DPST-NO

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4
Q

A diode with low resistance both directions is probably

A

shorted

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5
Q

what is a circuit breaker designed to protect

A

wires

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6
Q

the cathode on a diode is

A

Negative

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7
Q

what is the bias voltage on a silicon semiconductor

A

0.7 Volts

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8
Q

what are the three connections on a transistor

A

Base
Emitter
Collector

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9
Q

what is the main difference between a fuse and a circuit breaker

A

a circuit breaker can be reset

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10
Q

can a primary cell be recharged

A

No

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11
Q

to increase the voltage of two batteries you should hook them in

A

Series

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12
Q

the Negative pole on a battery is the

A

Cathode

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13
Q

the closed circuit voltage of a battery will always be higher than the open circuit voltage

A

False

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14
Q

to increase the current output of two batteries you should hook them in

A

Parallel

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15
Q

if a transistor is on, what is the voltage between base and emitter

A

0.7V

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16
Q

what is the rating for a switch of a 12VDC lamp that draws 1A of current

A

1 Amp