Elec Final Flashcards

1
Q

A triangle which contains only two equal sides

A

Isosceles triangle

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2
Q

What voltage can be present on the cathode of electron gun

A

25 KV

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3
Q

Which of the following is not an application of oscilloscope measurement

A

Measure current amplitude

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4
Q

Which of the following controls will vertically adjust the electron beam

A

Volts division

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5
Q

What position is the CAL control knob normally placed

A

Fully clockwise

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6
Q

What are the two basic types of probes used in our oscilloscopes

A

X one X 10

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7
Q

Moderate increase to an above normal current over a period of time is an explanation of

A

Overload

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8
Q

What is the maximum voltage and current rating of a plug fuse

A

150 V 30 A

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9
Q

What is expected interrupting capacity of an HRC fuse

A

200 kamps

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10
Q

Under what conditions must a HRC fuse be used for circuit protection

A

Over 10,000 A

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11
Q

What type of breaker is capable of protecting equipment from overload

A

Thermal

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12
Q

What term is used to describe a breaker that trips even though it handled is held in the opposition

A

Trip free

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13
Q

What type of breaker protects against overcurrent only

A

Magnetic

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14
Q

What does a single pole GFCI breaker measure to monitor leakage current

A

In balance current between hot and neutral connection

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15
Q

What residential circuits are to be protected by our fault current breaker

A

Bedroom receptacles

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16
Q

Which following factor will have no effect on the magnitude of induced voltage produced by an alternator

A

Mean pole polarity

17
Q

What is the term that represents the distance from one point of a way for him to wear it repeats itself

A

Cycle

18
Q

How many electrical degrees of induced voltage are produced from for Pool alternator that rotates one mechanical revolution

A

720

19
Q

The DC circuit contains a series connected resistor and capacitor as the voltage across the capacitor increases the current flowing through the circuit blank and the voltage across the current limiting resister blank

A

Decreases decreases

20
Q

The current that realay coil draws is due to

A

Coil resistance

21
Q

The total late opening of the lamp is measured in

A

Lumens

22
Q

The unit for illumination is

A

Lux

23
Q

And angle which is less than 90° is commonly called a

A

Acute angle

24
Q

What device is used to activate the Mercury switch contacts in a common thermostat

A

By metallic element