SSC JE ELECTRICAL 2019 WITH SOLUTION SET-2 QUIZ

For indoor lighting the range of space : height is

2 : 3

5 : 6

3 :4

1 : 2

TRUE ANSWER : ?
YOUR ANSWER : ?

The water hammer effect is expected in a

Surge tank

Turbine casing

Penstock

Draft tube

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For a three-phase induction motor slip at No Load ÷ slip at Full Load

Always equal to zero

Always equal to one

Always less than one

Always less than one

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A long straight wire carries a current I = 10 A. At what distance is the magnetic field H = 1 A/m?

5/2π

10/2π

20/2π

1/2 π

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Conductors experience skin effect in

DC transmission

AC transmission

HVDC transmission

Both AC and DC transmissions

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Which of the following is an important feature of a 3-phase synchronous motor?

No starting torque

Low starting current

Low starting torque

High starting torque

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In the two-wattmeter method of three-phase power measurement of a balanced load, if the reading of one meter is −200W, then the power factor of the load is

Equal to 0.5

Equal to zero

Less than 0.5

Greater than 0.5

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Four statements are given below. Identify the correct statement?

XOR is a derived gate

XNOR is a basic gate

XOR is a basic gate

XOR is a universal gate

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The change in DC excitation of a synchronous motor will also change the

Load angle

Power factor

Speed of the motor

Supply voltage

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In Boolean algebra (A. Ā) + A

Ā

0

1

A

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