SSC JE ELECTRICAL 2018 WITH SOLUTION SET-1 QUIZ

Calculate the phase angle between the voltage and current phasor of a series RL circuit having the resistance of 65 Ohms and Inductive reactance of 37.53 ohms when supplied by a frequency of 60 Hz

45°

30°

15°

60°

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following is the S.I unit of the magnetic field strength?

Ampere-Meter

Tesla

Weber

Ampere/Meter

TRUE ANSWER : ?
YOUR ANSWER : ?

In a synchronous motor running with the fixed excitation, when the load is increased two times, its torque angle becomes approximately

Twice

No Change

Half

Four Times

TRUE ANSWER : ?
YOUR ANSWER : ?

LED lamp have a general life expectancy of

50000 hrs

1000 hrs

15000 hrs

5000 hrs

TRUE ANSWER : ?
YOUR ANSWER : ?

Cutting pliers use for electrical work must have

Non corrode

High strength

Sharp

Insulation

TRUE ANSWER : ?
YOUR ANSWER : ?

If the field of a DC shunt motor gets opened while the motor is running, then the

The motor will attain the dangerously high speed

Armature current will drop

Armature will oscillate about original speed as the mean speed

Motor will become slow

TRUE ANSWER : ?
YOUR ANSWER : ?

On which of the following parameters the eddy current loss occurring in a material does not depend?

The frequency of variation of flux

Susceptibility

The volume of the material

Magnetic flux Density

TRUE ANSWER : ?
YOUR ANSWER : ?

The speed of a synchronous motor can be changed by

Changing the load

Changing the supply voltage

Changing the frequency

Changing the supply Terminals

TRUE ANSWER : ?
YOUR ANSWER : ?

The unit of luminous flux is

Lux

Steradian

Candela

Lumen

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following is the mathematical expression of the Ohm’s Law?

V = R

V = R/I

V = I.R

V = I

TRUE ANSWER : ?
YOUR ANSWER : ?

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