Which of the following is the layer of a computer system between the hardware and the user program?

MGVCL Exam Paper (30-07-2021 Shift 1)
Which of the following is the layer of a computer system between the hardware and the user program?

None of these

System Environment

Operating System

Application Software

None of these

System Environment

Operating System

Application Software

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MGVCL Exam Paper (30-07-2021 Shift 1)
Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 375 W and –50 W. Calculate the reactive power taken by the load.

325√3 VAR

425√3 VAR

325/√3 VAR

425/√3 VAR

325√3 VAR

425√3 VAR

325/√3 VAR

425/√3 VAR

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MGVCL Exam Paper (30-07-2021 Shift 1)
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, what will be the voltage across a 100 W lamp (L1)?

180V

160 V

120V

240V

180V

160 V

120V

240V

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MGVCL Exam Paper (30-07-2021 Shift 1)
An alternator is supplying load of 300 kW at a power factor of 0.5 lagging. If the power factor is raised to unity, how many more kilowatts can alternator supply for the same kVA loading?

600 kW

150 kW

450 kW

300 kW

600 kW

150 kW

450 kW

300 kW

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MGVCL Exam Paper (30-07-2021 Shift 1)
Which generation of computers used vacuum tubes?

Third Generation

Second Generation

First Generation

Fourth Generation

Third Generation

Second Generation

First Generation

Fourth Generation

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MGVCL Exam Paper (30-07-2021 Shift 1)
An RC series circuit with R = 150 Ω and C = 2 μF is excited by a DC source of 15 V by closing the switch at t = 0 with an initially uncharged capacitor. The initial and final voltages across the capacitor respectively are

0 V, 10 V

0 V, 15 V

15 V, 10 V

10 V, 15 V

0 V, 10 V

0 V, 15 V

15 V, 10 V

10 V, 15 V

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MGVCL Exam Paper (30-07-2021 Shift 1)

MGVCL Exam Paper (30-07-2021 Shift 1) Which of the following is the layer of a computer system between the hardware and the user program?

MGVCL Exam Paper (30-07-2021 Shift 1) Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 375 W and –50 W. Calculate the reactive power taken by the load.

MGVCL Exam Paper (30-07-2021 Shift 1) An alternator is supplying load of 300 kW at a power factor of 0.5 lagging. If the power factor is raised to unity, how many more kilowatts can alternator supply for the same kVA loading?

MGVCL Exam Paper (30-07-2021 Shift 1) Which generation of computers used vacuum tubes?

MGVCL Exam Paper (30-07-2021 Shift 1) An RC series circuit with R = 150 Ω and C = 2 μF is excited by a DC source of 15 V by closing the switch at t = 0 with an initially uncharged capacitor. The initial and final voltages across the capacitor respectively are

MGVCL Exam Paper (30-07-2021 Shift 1)
Which of the following is the layer of a computer system between the hardware and the user program?

MGVCL Exam Paper (30-07-2021 Shift 1)
Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 375 W and –50 W. Calculate the reactive power taken by the load.

MGVCL Exam Paper (30-07-2021 Shift 1)
An alternator is supplying load of 300 kW at a power factor of 0.5 lagging. If the power factor is raised to unity, how many more kilowatts can alternator supply for the same kVA loading?

MGVCL Exam Paper (30-07-2021 Shift 1)
Which generation of computers used vacuum tubes?

MGVCL Exam Paper (30-07-2021 Shift 1)
An RC series circuit with R = 150 Ω and C = 2 μF is excited by a DC source of 15 V by closing the switch at t = 0 with an initially uncharged capacitor. The initial and final voltages across the capacitor respectively are