Quiz : Psc- Electrician 047/2017

by eees.in · Published June 4, 2020 · Updated August 23, 2020

#1. 1 Joule/Second is equal to......?

1Watt

1Watt

1Calorie

1Calorie

1Newton

1Newton

1Hentry

1Hentry

#2. 1KWh =......Joules

3600

3600

36 x 10^5

36 x 10^5

36 x 10^3

36 x 10^3

36 x 10^6

36 x 10^6

#3. Dielectric strength of air in KV/mm?

2.1

2.1

15

15

3.2

3.2

8.4

8.4

#4. Differential compound generators are suitable for....?

electroplating

electroplating

arc welding

arc welding

lighting

lighting

battery charging

battery charging

#5. Which connection is best suited for 3 phase 4 wire service?

delta delta

delta delta

delta star

delta star

star star

star star

star delta

star delta

#6. Which of the following has negative temperature coefficient of resistance?

copper

copper

silicon

silicon

iron

iron

brass

brass

#7. Rotor speed of 3 phase 4 pole 50Hz induction motor is....?

1440 rpm

1440 rpm

1500 rpm

1500 rpm

1560 rpm

1560 rpm

1600 rpm

1600 rpm

#8. Barrier potential of silicon at room temperature of 25°C is......?

0.3 V

0.3 V

0.4 V

0.4 V

0.7 V

0.7 V

0.9 V

0.9 V

#9. Convert decimal 9 to binary?

1011

1011

1000

1000

1100

1100

1001

1001

#10. Stray losses are....?

copper loss

copper loss

magnetic and mechanical loss

magnetic and mechanical loss

eddy current loss

eddy current loss

hydteresis loss

hydteresis loss

finish

Results

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