Electrical Engineering Quiz 53

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Electrical Engineering Quiz 53

1 / 50

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

2 / 50

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

3 / 50

is the property of absorbing moisture from atmosphere_____________?

4 / 50

Heat control switches are used in__________________?

5 / 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?

6 / 50

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

7 / 50

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

8 / 50

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

9 / 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_______________?

10 / 50

Hysteresis loss least depends on____________?

11 / 50

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

12 / 50

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

13 / 50

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

14 / 50

Electric pressure is also called________?

15 / 50

Negative feedback in an amplifier____________?

16 / 50

A zener diode is________________ device?

17 / 50

The function of conservator in a transformer is___________________?

18 / 50

Thermal voltage VT can be given by____________?

19 / 50

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

20 / 50

A synchronous motor develops maximum power when load angle is____________?

21 / 50

Insulating materials have the function of______________?

22 / 50

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

23 / 50

The material commonly used for sheaths of underground cables is______________?

24 / 50

Resistances can be measured with the help of_______________?

25 / 50

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

26 / 50

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

27 / 50

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

28 / 50

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

29 / 50

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

30 / 50

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

31 / 50

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

32 / 50

Evaporative type of condenser has___________?

33 / 50

At transition temperature the value of critical field is____________?

34 / 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______________?

35 / 50

A nuclear power plant is invariably used as a__________?

36 / 50

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

37 / 50

SF6 gas______________?

38 / 50

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

39 / 50

____________are used for construction of core of electromagnets?

40 / 50

capacitors can be used only for D.C ?

41 / 50

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

42 / 50

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

43 / 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_______________?

44 / 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______________?

45 / 50

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

46 / 50

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

47 / 50

Zero initial condition for a system means_______________?

48 / 50

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

49 / 50

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

50 / 50

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

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