Home » Electrical Engineering Quiz » Electrical Engineering Quiz 27

Electrical Engineering Quiz 27

0%
0

Electrical Engineering Quiz 27

1 / 50

Insulation resistance of high voltage circuit breakers is more than________________?

2 / 50

A certain JFET data sheet gives VGS(off) = -4 V. The pinch-off voltage Vp is _____________?

3 / 50

Material used for construction of transformer core is usually___________________?

4 / 50

IC = ? IB +__________?

5 / 50

Which winding in a transformer has more number of turns ?

6 / 50

Frequencies above ______________ kHz are called radio frequencies?

7 / 50

What will happen if the transformers working in parallel are not connected with regard to polarity ?

8 / 50

In case of high speed universal motor which of the following needs more attention?

9 / 50

A coil with negligible resistance has 50V across it with 10 m The inductive reactance is_____________?

10 / 50

The insulation between windings and grounded core and the insulation between the windings of the same phase is called__________________?

11 / 50

Speed torque characteristic of a repulsion induction motor is similar to that of a D.C____________?

12 / 50

The phase lag produced by transportation relays_____________?

13 / 50

Gilbert is a unit of_______________?

14 / 50

The most commonly used semiconductor is________________?

15 / 50

The Q of a tuned amplifier is generally _________________?

16 / 50

In case of D.C. machine winding, number of commutator segments is equal to______________?

17 / 50

The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be_____________?

18 / 50

In a transistor, signal is transferred from a___________circuit?

19 / 50

Rankine efficiency of a steam power plant____________?

20 / 50

Buchholz?s relay gives warning and protection against_________________?

21 / 50

The insulating material used between the commutator segments is normally_____________?

22 / 50

Wattmeter cannot be designed on the principle of_________________?

23 / 50

The base of a transistor is____________doped?

24 / 50

An induction motor can run at synchronous speed when____________?

25 / 50

The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes_______ohms?

26 / 50

Which of the following methods may be used to convert A.C. system to D.C ?

27 / 50

Eddy currents are induced in the pole shoes of a D.C. machine due to______________?

28 / 50

Paper capacitors usually have a tolerance of___________?

29 / 50

In a system low friction co-efficient facilitates___________?

30 / 50

Size of a high speed motor as compared to low speed motor for the same H.P. will be__________?

31 / 50

Commonly used standard capacitor is______________?

32 / 50

The heat dissipated by from a surface depends upon its temperature and its characteristics like colour, roughness etc?

33 / 50

In case of locomotives the tractive power is provided by______________?

34 / 50

The arcing contacts in a circuit breaker are made of______________?

35 / 50

In a pure inductive circuit___________?

36 / 50

The essential condition for parallel operation of two D.C. generators is that they have ________________?

37 / 50

A separately excited generator as compared to a self-excited generator_____________?

38 / 50

In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will__________?

39 / 50

A typical output of a solar cell is_____________?

40 / 50

TravelUng grate stoker can burn coals at the rates of____________?

41 / 50

For swept frequency measurements, the input impedance of the mismatched transmission line would vary with frequency as the electrical length of the transmission line would

42 / 50

Which of the following motors is preferred when smooth and precise speed control over a wide range is desired ?

43 / 50

A material for good magnetic memory should have____________?

44 / 50

BCT is used for____________?

45 / 50

A power supply has a voltage regulation of 1%. If the no-load voltage is 20 V, what is the full-load voltage ?

46 / 50

As the junction temperature increases, the voltage breakdown point for Zener mechanism _______________?

47 / 50

In squirrel cage induction motors, the rotor slots are usually given slight skew in order to__________?

48 / 50

In order to determine hfe and hie parameters of a transistor, __________ is an a.c. short-circuited?

49 / 50

Value of ?r for various dielectrics is always________________?

50 / 50

If the PIV rating of a diode is exceeded,_______________?

Provide Your Information

Your score is

The average score is 0%

0%

Share on facebook
Facebook
Share on twitter
Twitter
Share on whatsapp
WhatsApp
Electrical Engineering Quiz 1
Electrical Engineering Quiz 2
Electrical Engineering Quiz 3
Electrical Engineering Quiz 4
Electrical Engineering Quiz 5
Electrical Engineering Quiz 6
Electrical Engineering Quiz 7
Electrical Engineering Quiz 8
Electrical Engineering Quiz 9
Electrical Engineering Quiz 10

Help Concept 360 Please. We need 500 Youtube Subscriber. Please Subscribe our Youtube Channel. Click below link to subscribe Please

آپ سے گزارش ہے کہ ہمارے یوٹیوب چینل کوسبسکرائب کر کے ہماری مدد کریں جیسا کہ یہ ویب سائٹ آپکی مدد کر رہی ہے۔ شکریہ