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# Distribution Systems, Cables & Insulators of Power Systems

## 10 Questions MCQ Test Power Systems | Distribution Systems, Cables & Insulators of Power Systems

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This mock test of Distribution Systems, Cables & Insulators of Power Systems for Electrical Engineering (EE) helps you for every Electrical Engineering (EE) entrance exam. This contains 10 Multiple Choice Questions for Electrical Engineering (EE) Distribution Systems, Cables & Insulators of Power Systems (mcq) to study with solutions a complete question bank. The solved questions answers in this Distribution Systems, Cables & Insulators of Power Systems quiz give you a good mix of easy questions and tough questions. Electrical Engineering (EE) students definitely take this Distribution Systems, Cables & Insulators of Power Systems exercise for a better result in the exam. You can find other Distribution Systems, Cables & Insulators of Power Systems extra questions, long questions & short questions for Electrical Engineering (EE) on EduRev as well by searching above.
QUESTION: 1

### If r is the  radius of the conductor and R the radius of the sheath of the cable, the cable operates stably from the view point of dielectric strength if:

Solution:

The cable operates stably from the view point of dielectric strength if,

QUESTION: 2

### The insulation resistance of a cable of 10 km length is 1 MΩ. The resistance for a length of 40 km is

Solution:

It seems amazing that Insulation Resistance (IR) of a Cable is inversely proportional to the length of Cable. As per our general perception, the resistance is directly proportional to length of conductor but mind here that it is not the resistance of conductor rather it is the resistance of the Insulation provided around the conductor.

The insulation resistance of a cable,

Ri2 = 0.25 MΩ

QUESTION: 3

### Sheath losses can be eliminated by

Solution:
QUESTION: 4

Armouring protect cables against

Solution:
QUESTION: 5

Match List-l (Type of Cables) with List-ll (Operatng Voltages) and select the correct answer using the code given below the lists:

Solution:
QUESTION: 6

Consider the following statements:
1. AAC (All Aluminium conductors) are universaly employed for feeders as well as distributors.
2. The conductor size for a feeder is mainly governed by the permissible voltage drop in the line.
Which of the above statement(s) is/are true?

Solution:

ACSR conductors are universally employed for distribution systems (feeders as well as distributors), AAC can be used for distribution purpose provided the spans are small.
Hence, statement-1 is false.
The conductor size for a feeder is mainly governed by current carrying capacity and overall economy. Hence, 2 is also a false statement.

QUESTION: 7

Which of the following distribution systems is the most economical?

Solution:
QUESTION: 8

For high voltage transmission lines, conductors are suspended from towers so as to

Solution:
QUESTION: 9

The function of steel wire in an ACSR conductor is to

Solution:
QUESTION: 10

The string efficiency of insulators can be increased by

Solution: