SSC JE Electrical Engineering 3rd March 2017 Shift-1
For the following questions answer them individually
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 71
The short-circuit characteristic of an alternator is ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 72
The ratio of armature leakage reactance to synchronous reactance of a large size modern alternator is about ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 73
High speed alternators usually have ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 74
Compared to the secondary of a loaded step-up transformer, the primary has ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 75
Under operating conditions the secondary of a current transformer is always short circuited because ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 76
During short-circuit test, the iron loss of a transformer is negligible because ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 77
When a 400-Hz transformer is operated at 50 Hz, its kVA rating is ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 78
The ordinary efficiency of a given transformer is maximum when ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 79
While conducting short-circuit test on a transformer the following side is short-circuited ________.
SSC JE Electrical Engineering 3rd March 2017 Shift-1 - Question 80
In transmission lines the cross-arms are made of ________.
