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Are you an Electrical Engineer??? If Yes Take Following Quiz

Electrical Engineering

Smart Series Quiz-1

These questions are taken from smart series book which covers all the subjects of Electrical Engineering and Technology Field

1 / 30

Category: Electroncis

1) A semiconductor device is connected in a series circuit with a battery and a resistance. If the polarity of battery is reversed, the current drops almost to zero. The device may be

a) P-type semiconductor

b) N-type semiconductor

c) P-N junction

d) An intrinsic semiconductor

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Category: Probability

2) What is the probability of a number "2" when a dice is thrown?

a) 2/6

b) 1/3

c) 1/6

d) 1/4

We have to maintain flatness of the surface.

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Category: Power System Analysis

3) Which of the following are considered as disadvantages(s) of Gauss-Seidel method over Newton Raphson method in load flow analysis?

a) More iteration

b) More memory requirement and less accuracy

c) Less iteration but more memory

d) More accuracy and more memory

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Category: Basic Electrical Engineering

4) At very sunny places this source(s) of energy can be found

a) Jet fuel

b) Geothermal

c) Solar

d) Both B & C

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Category: Electrical Machines

5) Fundamental property used in single node pair circuit analyzer is that ______ across all elements is same.

a) Current

b) Voltage

c) Resistance

d) Inductance

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Category: Electrical Machines

6) A transformer transforms

a) Voltage

b) Power

c) Frequency

d) Current

e) Both A & D

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Category: Electroncis

7) Discrete device field effect transistor is classified on the basis of their

a) Resistive state

b) Conducting state

c) Voltaic state

d) Control gate construction

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Category: Basic Electrical Engineering

8) If the input capacitor of a power supply is shorted, it will result in

a) Excessive hum

b) Reduced voltage output

c) No voltage output

d) Low voltage output

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Category: Power System Analysis

9) Which of the following ideas means deciding at runtime what strategy to summon?

a) Dynamic typing

b) Dynamic hiding

c) Dynamic loading

d) Dynamic blinding

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Category: Basic Electrical Engineering

10) Fourier series are infinite series of elementary trigonometric functions i.e. Sine and

a) Cosine

b) Sec

c) Cosec

d) Tan

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Category: Singal and Systems

11) Main purpose of modulation process is to

a) Distort the original signal

b) Add extra noise to the signal

c) Reduce the mutual interference

d) Time shift in frequency

e) Increase signal to noise ratio

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Category: Power Transmission and Distributions

12) Drop out to cut off ratio for most relays is of the order of

a) 0.2 to 0.3

b) 0.3 to 0.4

c) 0.4 to 0.6

d) 0.6 to 1.0

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Category: Power System Analysis

13) The quantity "Rm" which relates dependent voltage to controlling current is called

a) Trans Conductance

b) Maximum Resistance

c) Trans Resistance

d) Limiting Resistance

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Category: Power System Analysis

14) There are ____ types of dependent sources, depending on the controlling variable and output of the source.

a) Two

b) Three

c) Four

d) Five

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Category: Power Electroncis

15) If the firing angle in an SCR rectifier is decreased, output will be

a) Maximum

b) Increased

c) Decreased

d) Unaffected

We have to maintain flatness of the surface.

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Category: DC Machines

16) The Pole Shoes of DC Machines are fastened to the pole core by:

a) Welding

b) Soldering

c) Countersunk Screws

d) Steel Clumps

17 / 30

Category: Power Plant

17) The average fossil fuel plant convers about is ______ % of the power going in to the power going out.

a) 33

b) 40

c) 25

d) 50

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Category: Basic Electrical Engineering

18) Which line is obtained by the method of least square?

a) Straight line

b) Second degree equation line

c) Polynomial equation line

d) Best fit line

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Category: Telecommunications

19) Modulation index in amplitude modulation

a) Is defined as the measure of extent of amplitude variation about an un-modulated carrier.

b) Does not impact power dissipation

c) Is independent of integral multiple of amplitude

d) None of these

20 / 30

Category: Power Transmission and Distributions

20) Which of the following conditions relate line resistance 'R' and line reactance 'X' for maximum steady state power transmission on a transmission line?

a) X=R

b) R=[Square Root (3)]*X

c) X=[Square Root (3)]*R

d) X=R / [Square Root (3)]

21 / 30

Category: Network Analysis

21) Admittance is the reciprocal of

a) Capacitive reactance

b) Inductive reactance

c) Reactive power

d) Impedance

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Category: Power Transmission and Distributions

22) For which purpose bundled conductors are employed to a power system

a) Appearance of the transmission line

b) Mechanical stability of the line

c) Decrease system stability

d) Increase the short circuit current

23 / 30

Category: Power System Analysis

23) Power in AC circuit is found by

a) VI sin (phi)

b) VI tan (phi)

c) VI cos (phi)

d) VI

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Category: Basic Electrical Engineering

24) Conjunction x ^ y behaves on digits 0 and 1 exactly as ____ does for ordinary algebra.

a) Addition

b) Subtraction

c) Multiplication

d) Division

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Category: Power Plant

25) Landfill gas is actually _______ used in thermal power plants.

a) Methane

b) Ethane

c) Black Liquor

d) Phosphorus

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Category: Power Plant

26) If field resistance of DC shunt generator is increased beyond its critical value, the generator

a) output voltage will exceed its nameplate rating

b) will not build up

c) may burn out if loaded to its nameplate rating

d) power output may exceed its nameplate rating

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Category: Electroncis

27) SCR (Silicon Controlled Rectifier) goes into saturation, when gate-cathode junction is

a) Forward biased

b) Reversed biased

c) In steady state

d) Polarized

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Category: Singal and Systems

28) The _____ time signal is described for all values of time.

a) Discrete

b) Continuous

c) Random

d) Digital

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Category: Power Plant

29) ______ is a by-product of paper industry, which is used by many industries as a primary source of electricity.

a) Landfill gas

b) Sludge waste

c) Black Liquor

d) Wood waste

30 / 30

Category: Electrical Machines

30) Radio frequency chokes are air cored to

a) Keep frequency low

b) Keep inductive reactance low

c) Keep frequency high

d) Keep inductive reactance high

Your score is

The average score is 28%

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