Testing and Commissioning of Electrical Equipments (2180901) MCQs

MCQs of Testing of Transformer, Plant and Equipment

Showing 11 to 20 out of 66 Questions
11.
Which of the following test is performed to confirms assigned ratings, characteristics, main and basic design criteria of a production lot.
(a) Type
(b) Routine
(c) Special
(d) Commissioning
Answer:

Option (a)

12.
Which of the following test is performed to confirms the operational performance of the individual unit in a production lot?
(a) Type
(b) Routine
(c) Special
(d) Commissioning
Answer:

Option (b)

13.
____________ tests are performed to assess the condition of the transformer after installation and compare the test results with the factory test reports.
(a) Type
(b) Routine
(c) Special
(d) Commissioning
Answer:

Option (d)

14.
Which of the following test is/are not performed at manufacturer premises?
(a) Type
(b) Routine
(c) Special
(d) Commissioning
Answer:

Option (d)

15.
Winding resistance measurement test is __________ test, It’s also carried out as a commissioning and maintenance test.
(a) Type
(b) Routine
(c) Special
(d) General
Answer:

Option (b)

16.
Winding resistance measurement is carried out to determine which of the following parameters?
(a) Copper losses in transformer windings
(b) the winding temperature at the end of the temperature rise test of transformer.
(c) inter-turn short circuit
(d) All of these
Answer:

Option (d)

17.
Winding resistance measurement is carried out after/during the following condition.
(a) Manufacturing
(b) Installation
(c) Schedule & Unschedule Maintenance
(d) All of these
Answer:

Option (d)

18.
Winding resistance measurement always done by passing _________________ only
(a) direct current (DC supply)
(b) alternating current (AC supply)
(c) Both AC and DC
(d) True RMS AC only
Answer:

Option (a)

19.
effective ac resistance is higher than the dc resistance due to __________
(a) Ferranti effect
(b) corona effect
(c) skin effect
(d) All of these
Answer:

Option (c)

20.
Effective AC resistance = ___________ * measured DC resistance.
(a) 1.1
(b) 1.41
(c) 1.73
(d) Selected between 1.2 to 1.75
Answer:

Option (d)

Showing 11 to 20 out of 66 Questions