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If YOU are an Electrical Engineer then following quiz is for YOU

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: Power Transmission and Distributions

1) 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

2 / 30

Category: Electrical Machines

2) 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

3 / 30

Category: Basic Electrical Engineering

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

a) Cosine

b) Sec

c) Cosec

d) Tan

4 / 30

Category: Power Plant

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

a) Methane

b) Ethane

c) Black Liquor

d) Phosphorus

5 / 30

Category: Electroncis

5) 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

6 / 30

Category: Power Transmission and Distributions

6) 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)]

7 / 30

Category: Electroncis

7) 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

8 / 30

Category: Network Analysis

8) Admittance is the reciprocal of

a) Capacitive reactance

b) Inductive reactance

c) Reactive power

d) Impedance

9 / 30

Category: Basic Electrical Engineering

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

a) Jet fuel

b) Geothermal

c) Solar

d) Both B & C

10 / 30

Category: Power Plant

10) ______ 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

11 / 30

Category: Basic Electrical Engineering

11) 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

12 / 30

Category: Power System Analysis

12) 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

13 / 30

Category: Power Plant

13) 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

14 / 30

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

15 / 30

Category: Electrical Machines

15) A transformer transforms

a) Voltage

b) Power

c) Frequency

d) Current

e) Both A & D

16 / 30

Category: Power System Analysis

16) Power in AC circuit is found by

a) VI sin (phi)

b) VI tan (phi)

c) VI cos (phi)

d) VI

17 / 30

Category: Power Electroncis

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

a) Maximum

b) Increased

c) Decreased

d) Unaffected

18 / 30

Category: Probability

18) 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

19 / 30

Category: Power System Analysis

19) The quantity “Rm” which relates dependent voltage to controlling current is called

a) Trans Conductance

b) Maximum Resistance

c) Trans Resistance

d) Limiting Resistance

20 / 30

Category: Power Transmission and Distributions

20) 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

21 / 30

Category: Electrical Machines

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

a) Current

b) Voltage

c) Resistance

d) Inductance

22 / 30

Category: Singal and Systems

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

a) Discrete

b) Continuous

c) Random

d) Digital

23 / 30

Category: Power Plant

23) 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

We have to maintain flatness of the surface.

24 / 30

Category: Power System Analysis

24) 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

25 / 30

Category: Electroncis

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

a) Forward biased

b) Reversed biased

c) In steady state

d) Polarized

26 / 30

Category: Basic Electrical Engineering

26) 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

27 / 30

Category: Singal and Systems

27) 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

28 / 30

Category: Telecommunications

28) 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

29 / 30

Category: Basic Electrical Engineering

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

a) Addition

b) Subtraction

c) Multiplication

d) Division

We have to maintain flatness of the surface.

30 / 30

Category: DC Machines

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

a) Welding

b) Soldering

c) Countersunk Screws

d) Steel Clumps

Your score is

The average score is 28%

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If YOU are an Electrical Engineer then following quiz is for YOU

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