Electrical Engineering Quiz 52

1 / 50

**The direction of rotation of universal motor can be reversed the by reversing the flow of current through__________? **

2 / 50

**The ratio of ampere-hour efficiency to watt-hour efficiency of a lead-acid cell is____________? **

3 / 50

**The connected load of a IVMIM uir consumer is around___________? **

4 / 50

**A carbon resistor contains_____________? **

5 / 50

**To measure radio frequency, the suitable frequency meter is_______________? **

6 / 50

**In graphite, bonding is____________? **

7 / 50

**If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is_________________? **

8 / 50

**Due to which of the following reasons excessive bond width in control systems should be avoided ? **

9 / 50

**Which of the following will happen if the thickness of refractory wall of furnace is increased ? **

10 / 50

**Power loss in actual transformer is due to_________________? **

11 / 50

**_______________is a closed loop system? **

12 / 50

**The following system is not generally used? **

13 / 50

**The force between two charges is 120 N. If the distance between the charges is doubled, the force will be________________? **

14 / 50

**When a lead-acid battery is in fully charged condition, the color of its positive plate is__________? **

15 / 50

**In a D.C. series motor, if the armature current is reduced by 50%, the torque of the motor will be equal to **

16 / 50

**Slip rings are usually made of__________? **

17 / 50

**Which of the following is most difficult to fabricate in an IC ? **

18 / 50

**The output of a particular Op-amp increases 8V in 12?s. The slew rate is_______________? **

19 / 50

**The stray line of magnetic flux is defined as_____________? **

20 / 50

**Caking coals are those which__________? **

21 / 50

**The repulsion-start induction-run motor is used because of___________? **

22 / 50

**For a purely inductive circuit which of the following is true ? **

23 / 50

**No-load current of a transformer has_____________? **

24 / 50

**Advantages of Cuk converter is / are_____________? **

25 / 50

**Heavy duty cranes are used in________________? **

26 / 50

**In practice, voltage gain is expressed______________? **

27 / 50

**In D.C. generators the pole shoes are fastened to the pole core by_____________? **

28 / 50

**The co-ordination number of a simple cubic structure is______________? **

29 / 50

**If one of the resistors in a parallel circuit is removed, the total resistance_____________? **

30 / 50

**Two 3.3 k? resistors are in series and this series combination is in parallel with a 4.7 k? resistor. The voltage across one of the 3.3 k? resistors is 12 V. The voltage across the 4.7 k? resistor is_________? **

31 / 50

**at a point is equal to the negative potential gradient at that point? **

32 / 50

**When a dielectric is placed in an electric field the field strength____________? **

33 / 50

**As per Faraday?s laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it_______________? **

34 / 50

**An open-circuit test on a transformer is conducted primarily to measure______________? **

35 / 50

**An ideal voltage source should have______________? **

36 / 50

**Which of the following is not a part of transformer installation ? **

37 / 50

**If the distance between the two point charges become half then force between them becomes______________? **

38 / 50

**Cells are connected in series in order to_____________? **

39 / 50

**The expected useful life of an hydroelectric power station is around_________________? **

40 / 50

**The class B push-pull circuit can deliver 100 W of a.c. output power. What should be the minimum power rating of each transistor ? **

41 / 50

**Which of the following motors is non-self starting ? **

42 / 50

**On the average the ampere-hour efficiency of an Edison cell is about__________? **

43 / 50

**An opamp has a slew rate of 5V/ S. the largest sine wave o/p voltage possible at a frequency of 1MHz is____________? **

44 / 50

**A differential relay measures the vector difference between_________________? **

45 / 50

**Between the incoming and outgoing devices in voltage commutation **

46 / 50

**The inductive interference between power and communication line can be minimized by__________? **

47 / 50

**Which statement is true ? **

48 / 50

**The leakage current in a crystal diode is due to _________________? **

49 / 50

**Ionization in circuit breaker is facilitated by___________? **

50 / 50

**When a body reflects entire radiation incident on it, then it is known as____________? **

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