Subject Repository
Electrical Engineering Mcqs
Showing 3301 – 3320 of 3,699 verified multiple choice questions with answers and explanations.
Q3301NTS / FPSC / PPSC
Distribution transformers are generally designed for maximum efficiency around________________?
Q3302NTS / FPSC / PPSC
The value of flux involved m the e.m.f. equation of a transformer is____________?
Q3303NTS / FPSC / PPSC
The main reason for generation of harmonics in a transformer could be_______________?
Q3304NTS / FPSC / PPSC
Gas is usually not liberated due to dissociation of transformer oil unless the oil temperature exceeds?
Q3305NTS / FPSC / PPSC
The full-load copper loss of a trans¬former is 1600 W. At half-load, the copper loss will be___________?
Q3306NTS / FPSC / PPSC
A Buchholz relay can be installed on______________?
Q3307NTS / FPSC / PPSC
A transformer oil must be free from________________?
Q3308NTS / FPSC / PPSC
The core used in high frequency transformer is usually___________?
Q3309NTS / FPSC / PPSC
In a transformer the resistance between its primary and secondary is____________?
Q3310NTS / FPSC / PPSC
Harmonics in transformer result in___________?
Q3312NTS / FPSC / PPSC
The function of conservator in a transformer is___________________?
Q3313NTS / FPSC / PPSC
The thickness of laminations used in a transformer is usually____________?
Q3314NTS / FPSC / PPSC
Material used for construction of transformer core is usually___________________?
Q3315NTS / FPSC / PPSC
Hysteresis loss in a transformer varies as CBmax = maximum flux density) ?
Q3316NTS / FPSC / PPSC
The noise resulting from vibrations of laminations set by magnetic forces, is termed as_________________?
Q3317NTS / FPSC / PPSC
The transformer ratings are usually expressed in terms of______________?
Q3318NTS / FPSC / PPSC
An ideal transformer has infinite values of primary and secondary inductances. The statement is______________?
Q3319NTS / FPSC / PPSC