Testing and Commissioning of Electrical Equipments (2180901) MCQs

MCQs of Transmission line

Showing 11 to 20 out of 78 Questions
1 2 3 4 5 6
11.
What is the value of current density permitted for transmission line?
(a) 150 A/cm2
(b) 100 A/cm2
(c) 50 A/cm2
(d) Cu-150 A/cm2 & Al-100 A/cm2
Answer:

Option (d)

12.
What is the transmission line voltage for different lengths of line?
(a) 132 kV for 120 km
(b) 220 kV for 200 km
(c) 400 kV for 300 km
(d) All of these
Answer:

Option (d)

13.
As per Indian Electricity Rule 1956, Clause No 77, the minimum distance between the bottom conductor and the ground of a 400KV transmission line is __________ meter.
(a) 8.84
(b) 9.84
(c) 10.84
(d) 15
Answer:

Option (a)

14.
clause, of IE 1956, minimum ground clearance of 33KV uninsulated electrical conductor is _________ meter.
(a) 3.2
(b) 4.2
(c) 5.2
(d) 8
Answer:

Option (c)

15.
Which of the following ate the general test conducted on an overhead transmission line?
(a) General Inspection
(b) Conductor continuity test
(c) insulation and Earth resistance test
(d) All of these
Answer:

Option (d)

16.
Which of the following is generally covered in the general inspection?
(a) Visual inspection of structure and part
(b) spacing between conductors and between conductor and earth
(c) tension on conductor and insulation
(d) All of these
Answer:

Option (d)

17.
Conductor continuity test and insulation resistance test is carried out with the help of
(a) megger
(b) impulse generator
(c) multimeter
(d) earth tester
Answer:

Option (a)

18.
Which of the following category of maintenance of overhead transmission lines can be carried out even if the system is live?
(a) patrolling from the ground
(b) Inspection from top
(c) shut-down period inspection
(d) other work
Answer:

Option (a)

19.
Tilting, Broken, Rusting, Accumulation of dirt and dust, Spot of burning and puncher are the turn closely related to
(a) Insulation
(b) Conductor
(c) Transmission Tower
(d) All of these
Answer:

Option (a)

20.
Which of the following maintenance of overhead transmission line required prior public notice?
(a) patrolling from the ground
(b) Inspection from top
(c) shut-down period inspection
(d) other work
Answer:

Option (c)

Showing 11 to 20 out of 78 Questions
1 2 3 4 5 6