Subject Repository
Electrical Engineering Mcqs
Showing 1001 – 1020 of 3,699 verified multiple choice questions with answers and explanations.
Q1001NTS / FPSC / PPSC
Multiple inlet system of air cooling of turbo-alternators can be used for machines of rating upto_______________?
Q1002NTS / FPSC / PPSC
The mcrease in heat dissipation by air blasts is due to increase in______________?
Q1003NTS / FPSC / PPSC
On which of the following variables heat convected depends ?
Q1004NTS / FPSC / PPSC
Which of the following materials is used in the manufacture of resistance grids to be used in the starters of large motors ?
Q1005NTS / FPSC / PPSC
The heat dissipated by from a surface depends upon its temperature and its characteristics like colour, roughness etc?
Q1006NTS / FPSC / PPSC
__________is extensively used for those portions of magnetic circuit which carry steady flux and need superior mechanical properties ?
Q1007NTS / FPSC / PPSC
Aluminium when adopted as a conductor material in __________ transformers, decreases the overall cost of the transformer?
Q1008NTS / FPSC / PPSC
Hot rolled sheets have ___________ value of permeability?
Q1009NTS / FPSC / PPSC
Materials exhibiting zero value of resistivity are known as ____________ ?
Q1010NTS / FPSC / PPSC
_______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?
Q1011NTS / FPSC / PPSC
__________ has a low relative permeability and is used principally in field frames when cost is of primary importance and extra weight is not objectionable?
Q1012NTS / FPSC / PPSC
Commercial available medium size machines have a speed range of __________ ?
Q1013NTS / FPSC / PPSC
The change in flux linkages can be caused in which of the following ways ?
Q1014NTS / FPSC / PPSC
The action of electromagnetic machines can be related to which of the following basic principles __________?
Q1015NTS / FPSC / PPSC
The length cf air gap to be provided in __________ is primarily determined by power factor consideration?
Q1016NTS / FPSC / PPSC
The design of mechanical parts is particularly important in case of __________ speed machines?
Q1018NTS / FPSC / PPSC