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Electrical Engineering Quiz 53

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Electrical Engineering Quiz 53

1 / 50

The selection of an electric motor for any application depends on which of the following factors ?

2 / 50

In a lead-acid battery the energy is stored in the form of___________?

3 / 50

Electric pressure is also called________?

4 / 50

capacitors can be used only for D.C ?

5 / 50

Which of the following cell has a. reversible chemical reaction ___________?

6 / 50

Negative feedback in an amplifier____________?

7 / 50

What is/are the configurable functions of each and every IOBs connected around the FPGA device from the operational point of view ?

8 / 50

____________are used for construction of core of electromagnets?

9 / 50

Insulating materials have the function of______________?

10 / 50

A nuclear power plant is invariably used as a__________?

11 / 50

The material commonly used for sheaths of underground cables is______________?

12 / 50

In D.C. machines the number of slots per pole usually lies___________?

13 / 50

Zero initial condition for a system means_______________?

14 / 50

A star circuit has element of resistance R/2. The equivalent delta elements will be_____________?

15 / 50

When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle?

16 / 50

Evaporative type of condenser has___________?

17 / 50

Hysteresis loss least depends on____________?

18 / 50

Which of the following motors is preferred for tape-recorders ?

19 / 50

At transition temperature the value of critical field is____________?

20 / 50

In a capacitor start single-phase motor, when capacitor is replaced by a resistance____________?

21 / 50

The superposition theorem requires as many circuits to be solved as there are____________?

22 / 50

Thermal voltage VT can be given by____________?

23 / 50

Which of the following has the highest value of thermal conductivity ?

24 / 50

A synchronous motor develops maximum power when load angle is____________?

25 / 50

For starting a D.C. motor a starter is required because___________?

26 / 50

Which of the following are not repayable after a stipulated period?

27 / 50

A 741-Type OP-AMP has a gain-bandwith product of 1MHz. A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of______________?

28 / 50

In a certain common-source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is_______________?

29 / 50

The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is______________?

30 / 50

Resistances can be measured with the help of_______________?

31 / 50

Electric force between two point charges in air or vacuum is F. If we replace air or vacuum by an insulator (dielectric) of relative permitivity Cr the force between the charges will_______________?

32 / 50

When a 1.6 k? resistor and a 120? resistor are connected in parallel, the total resistance is____________?

33 / 50

The disadvantage of base resistor method of transistor biasing is that it_________________?

34 / 50

Which of the following statements regarding hysteresis motor is in incorrect?

35 / 50

The function of conservator in a transformer is___________________?

36 / 50

The point of intersection of d.c. and a.c. load lines represents __________________?

37 / 50

The square waveform of current has following relation between r.m.s. value and average value?

38 / 50

The property of a conductor due to which it passes current is called___________?

39 / 50

If a square wave is fed to a differentiating circuit, the output will be _____________?

40 / 50

A no-load test is performed on a transformer to determine_______________?

41 / 50

In a full wave rectifier, the rectification ratio is approximately equal to____________?

42 / 50

Under over voltage condition impedance offered by the voltage clamping device is__________?

43 / 50

When the load is above _______________ a synchronous motor is found to be more economical?

44 / 50

Heat control switches are used in__________________?

45 / 50

A zener diode is________________ device?

46 / 50

If firing angle in an SCR circuit is increased, the output _____________?

47 / 50

When the crystal current diode current is large, the bias is ______________?

48 / 50

is the property of absorbing moisture from atmosphere_____________?

49 / 50

A small coil lies inside a large coil. The two coils are horizontal concentric and carry currents in opposite directions. The large coil will experience______________?

50 / 50

SF6 gas______________?

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