In transformer, bushing failure occurs due to<br/>(i) transformer vibrations<br/>(ii) dielectric losses<br/>(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, bushing failure occurs due to
(i) transformer vibrations
(ii) dielectric losses
(ii) partial discharge

(i), (ii) and (iii)

(i) and (ii) only

(i) and (iii) only

(ii) and (iii) only

(i), (ii) and (iii)

(i) and (ii) only

(i) and (iii) only

(ii) and (iii) only

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MGVCL Exam Paper (30-07-2021 Shift 2)
Encrypted security payload extension header is new in

IPv5

IPv6

IP

IPv4

IPv5

IPv6

IP

IPv4

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MGVCL Exam Paper (30-07-2021 Shift 2)
A single phase 240 V, 1 kW heater is connected across single phase 240 V, 50 Hz supply through an SCR. For firing angle delay of 90˚, calculate the power absorbed in the heater element.

250 W

225 W

300 W

275 W

250 W

225 W

300 W

275 W

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MGVCL Exam Paper (30-07-2021 Shift 2)
In a test by Murray loop for ground fault on 600 m of cable having a resistance of 1.5 Ω/km, the faulty cable is looped with a sound cable of the same length and area of cross section. If the ratio of the other two arms of the testing network at balance is 3 : 1, find the distance of the fault from the testing end of cables.

400 m

100 m

200 m

300 m

400 m

100 m

200 m

300 m

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MGVCL Exam Paper (30-07-2021 Shift 2)
A 3-phase motor load has a p.f. of 0.397 lagging. The two wattmeter method used to measure power show the input as 30 kW. Find the reading on each wattmeter.

W1 = -5 kW and W2 = 35 kW

W1 = 5 kW and W2 = 25 kW

W1 = -10 kW and W2 = 40 kW

W1 = 10 kW and W2 = 20 kW

W1 = -5 kW and W2 = 35 kW

W1 = 5 kW and W2 = 25 kW

W1 = -10 kW and W2 = 40 kW

W1 = 10 kW and W2 = 20 kW

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MGVCL Exam Paper (30-07-2021 Shift 2)
In circuit breaker, the term MCCB stands for

miniature compact circuit breaker

moulded case circuit breaker

miniature case circuit breaker

modern closed circuit breaker

miniature compact circuit breaker

moulded case circuit breaker

miniature case circuit breaker

modern closed circuit breaker

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MGVCL Exam Paper (30-07-2021 Shift 2)

MGVCL Exam Paper (30-07-2021 Shift 2) In transformer, bushing failure occurs due to(i) transformer vibrations(ii) dielectric losses(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2) Encrypted security payload extension header is new in

MGVCL Exam Paper (30-07-2021 Shift 2) A single phase 240 V, 1 kW heater is connected across single phase 240 V, 50 Hz supply through an SCR. For firing angle delay of 90˚, calculate the power absorbed in the heater element.

MGVCL Exam Paper (30-07-2021 Shift 2) A 3-phase motor load has a p.f. of 0.397 lagging. The two wattmeter method used to measure power show the input as 30 kW. Find the reading on each wattmeter.

MGVCL Exam Paper (30-07-2021 Shift 2) In circuit breaker, the term MCCB stands for

MGVCL Exam Paper (30-07-2021 Shift 2)
In transformer, bushing failure occurs due to
(i) transformer vibrations
(ii) dielectric losses
(ii) partial discharge

MGVCL Exam Paper (30-07-2021 Shift 2)
Encrypted security payload extension header is new in

MGVCL Exam Paper (30-07-2021 Shift 2)
A single phase 240 V, 1 kW heater is connected across single phase 240 V, 50 Hz supply through an SCR. For firing angle delay of 90˚, calculate the power absorbed in the heater element.

MGVCL Exam Paper (30-07-2021 Shift 2)
A 3-phase motor load has a p.f. of 0.397 lagging. The two wattmeter method used to measure power show the input as 30 kW. Find the reading on each wattmeter.

MGVCL Exam Paper (30-07-2021 Shift 2)
In circuit breaker, the term MCCB stands for