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

સોહેલ ખાન : મલાયકા અરોર :: સૈફ અલી ખાન : ??

પરવીન બાબી

અમૃતા સિંહ

કિરણ ખેર

માધુરી દિક્ષિત

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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.

300 W

225 W

275 W

250 W

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____are long-term (hours-long) voltage sags caused by system overload.

Voltage dips

Brownouts

Voltage surges

Black outs

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YOUR ANSWER : ?

In the context of smart meters, the term 'SMETS' stand for

Smart Monitoring Equipment Technical Specifications

Standard Monitoring Equipment Technical Specifications

Standard Metering Equipment Technical Specifications

Smart Metering Equipment Technical Specifications

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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 = (146.41+ j65.47) AIa₂ = (546.41-j165.47) A

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

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

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

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When different types of consumers are charged at different uniform per unit rates, it is called as ____

flat rate tariff

maximum demand tariff

block rate tariff

two-part tariff

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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.

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

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.

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Who started the daily newspaper 'National Herald' in 1938?

Ram Mohan Roy

Subhas Chandra Bose

Jawaharlal Nehru

Dadabhai Naoroji

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Operating system is

a program that runs during log off

a program that runs for short duration

a program that runs during log off

a layer between the user and the hardware

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Which of the following is an application layer service?

Network virtual terminal

File transfer, access and management

Mail service

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