Mechanical design of overhead lines

Mechanical design of overhead lines

University

7 Qs

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Mechanical design of overhead lines

Mechanical design of overhead lines

Assessment

Quiz

Education

University

Practice Problem

Hard

Created by

KEERTHANA S

Used 2+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

What is the purpose of the shield wire in overhead lines?

A. To provide a path for lightning
B. To carry the load
C. To connect the insulators
D. To provide insulation

2.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which type of pole is preferred for transmission lines in urban areas?

A. Steel poles
B. Wooden poles
C. Concrete poles
D. All of the above

3.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which of the following is not a factor that influences the choice of conductor size in overhead lines?

A. Load current
B. Ambient temperature
C. Distance between supports
D. Emissivity of the conductor

4.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

What is the maximum permissible sag for conductors in transmission lines?

A. 10% of the span
B. 15% of the span
C. 20% of the span
D. 25% of the span

5.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which of the following is not a type of vibration experienced by overhead conductors?

A. Aeolian vibration
B. Galloping vibration
C. Earthquake vibration
D. Sub-span oscillation

6.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which type of insulator is used for high voltage transmission lines?

A. Pin-type insulator
B. Suspension insulator
C. Shackle insulator
D. Stay insulator

7.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which of the following is not a material used for overhead line conductors?

A. Aluminum
B. Copper
C. Steel
D. Zinc

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