Quiz : PWD Lineman

by eees.in · Published June 14, 2020 · Updated August 23, 2020

 

#1. The emf of a fully charged lead acid cell is…..?

2.1

1.8

1.21

1.4

#2. When a moving iron instrument is connected in an AC circuit it indicates…..?

None of these

Average value

RMS value

Maximum value

#3. The transformer connection used at the substation end of the transmission line is…..?

delta delta

star star

delta star

star delta

#4. The method of speed control of series motor used in electric trains is…..?

series paralel method

voltage control method

field tapping method

field diverter method

#5. The number of slip rings in a rotating field system type alternator is…..?

4

6

3

2

#6. The essential condition for the parallel operation of two single phase transformers should be…..?

all the above

same polarity

same phase sequence

same per unit impedence ratio

#7. The moving coil dynamometer type wattmeter is connected……?

across the load

in series with the load

in series with the fixed coil

across the load

#8. The dc generator used for arc welding process is……?

differentially compound

under compound

series wound

cumulatively compound

#9. During charging of a lead acid cell the specific gravity of the electrolyte is…..?

doesnot change

none of these

increases

decreases

#10. The type of rotor is used in low and medium speed alternators?

salient pole

cylindrical type

non salient pole

squirrel cage

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