Extension of Instrument Ranges MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Extension of Instrument Ranges, a fundamental topic in the field of Electrical Measurement and Instrumentation. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Extension of Instrument Ranges MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Extension of Instrument Ranges mcq questions that explore various aspects of Extension of Instrument Ranges problems. Each MCQ is crafted to challenge your understanding of Extension of Instrument Ranges principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electrical Measurement and Instrumentation tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Extension of Instrument Ranges MCQs are your pathway to success in mastering this essential Electrical Measurement and Instrumentation topic.

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Extension of Instrument Ranges MCQs | Page 5 of 12

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Q41.
Phase angle error is due to _________

a.

C.T.

b.

magnetising component

c.

iron loss

d.

supply voltage

Discuss
Answer: (b).magnetising component
Q42.
In power measurements 180° phase shift is required.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q43.
Errors in a C.T. can be minimised by _________

a.

making use of laminations

b.

having low reactance

c.

increasing the secondary winding turns

d.

decreasing the primary winding turns

Discuss
Answer: (b).having low reactance
Q44.
The secondary leakage reactance of a C.T. ____________

a.

increases its ratio error

b.

decreases its ratio error

c.

has no effect on its ratio error

d.

increases the impedance of the circuit

Discuss
Answer: (a).increases its ratio error
Q45.
Secondary and primary windings consist of ________

a.

copper turns

b.

14 S.W.G copper wire and copper strip respectively

c.

iron coils wound around

d.

laminations

Discuss
Answer: (b).14 S.W.G copper wire and copper strip respectively
Q46.
Coils of a C.T. are separately wound.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q47.
The windings of a C.T. are ________

a.

tied together

b.

shorted

c.

wound over one another

d.

grounded

Discuss
Answer: (c).wound over one another
Q48.
At high voltages, the current transformers are enclosed in a tank.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q49.
Turns compensation is used to obtain ________

a.

to compensate the turns

b.

to equalise the turns on the windings

c.

to protect the equipment

d.

transformation ratio equal to nominal ratio

Discuss
Answer: (d).transformation ratio equal to nominal ratio
Q50.
What is the effect of reducing the secondary turns in a C.T. by 1%?

a.

transformation ratio reduces by the same value

b.

no effect

c.

nominal ratio increase by the same value

d.

secondary current increases by the same value

Discuss
Answer: (a).transformation ratio reduces by the same value
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