MGVCL EXAM PAPER (30-07-2021 SHIFT 2) QUIZ

In a 3-phase, 4-wire, 400/230 V system, a lamp (L1) of 100 W is connected to one phase and neutral and a lamp (L2) of 150 W is connected to the second pahse and neutral. If the neutral wire is disconnected accidently, then

100 W lamp (L1) becomes dim and 150 W lamp (L2) becomes brighter

both 100 W lamp (L1) and 150 W lamp (L2) becomes brighter

both 100 W lamp (L1) and 150 W lamp (L2) becomes dim

100 W lamp (L1) becomes brighter and 150 W lamp (L2) becomes dim

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The line currents in amperes in phases a, b and c respectively are 500 +j150, 100 – j600 and – 300 + j600 referred to the same reference vector with phase sequence of abc. Find the symmetrical component of currents.

Ia₀ = (100+j50) AIa₁ = (200+ j107.75) AIa₂ = (200-j107.75) A

Ia₀ = (100+j50) AIa₁ = (546.41+j165.47) AIa₂ = (-146.41-j65.47) A

Ia₀ = (100+j50) AIa₁ = (146.41+ j65.47) AIa₂ = (546.41-j165.47) A

Ia₀ = (100+j50) AIa₁ = (546.41+ j165.47) AIa₂ = (546.41-j165.47) A

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Which of the following is true regarding access lists applied to an interface?

You can apply only one access list on any interface

You can apply two access lists to any interface

One access list may be configured, per direction, for each layer 3 protocol configured on an interface

You can place as many access lists as you want on any interface until you run out of memory.

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In a typical DC micro grid, hybrid storage system is a combination of

None of these

Lead acid battery and ultra capacitor / super capacitor

Lead acid battery and Capacitor

Lead acid battery and Lithium ion battery

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YOUR ANSWER : ?

Choose the word which best expresses the similar meaning of the given word "LUCID"

Clear

Cloudy

Sensible

Puzzled

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Which one of the following statement is TRUE?

Underground cables are laid at sufficient depth to avoid being unearthed easily due to removal of soil.

In the cables, the location of fault is usually found out by comparing the capacitances of insulated conductors.

In the cables, sheaths are used to provide enough strength.

The current carrying capacity of cables in DC is less than that in AC.

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A THHN conductor will have a 60˚C termination on one end and a 75˚C termination on the other, which ampacity column will be used?

None of these

60˚C column

75˚C column

90˚C column

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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 = 25 kW

W1 = -5 kW and W2 = 35 kW

W1 = 10 kW and W2 = 20 kW

W1 = -10 kW and W2 = 40 kW

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Which of the following is a national organisation monitoring the doping control programme in sports in India?

Indian Anti-Doping Agency

National Anti-Doping Agency

Primary Anti-Doping Agency

International Anti-Doping Protocol

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The operating time of an inverse definite minimum time (IDMT) overcurrent relay is proportional to the plug-setting multiplier (PSM) andproportional to the time-multiplier setting (TMS).

inversely, inversely

directly, inversely

inversely, directly

directly, directly

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