Aprende MATLAB y Simulink de CERO a EXPERTO

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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

We have to maintain flatness of the surface.

1 / 30

Category: DC Machines

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

a) Welding

b) Soldering

c) Countersunk Screws

d) Steel Clumps

2 / 30

Category: Power Electroncis

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

a) Maximum

b) Increased

c) Decreased

d) Unaffected

3 / 30

Category: Electrical Machines

3) 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

4 / 30

Category: Power Transmission and Distributions

4) 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)]

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: Telecommunications

6) 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

7 / 30

Category: Uncategorized

7) 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

8 / 30

Category: Power Plant

8) 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

9 / 30

Category: Power Plant

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

a) Methane

b) Ethane

c) Black Liquor

d) Phosphorus

10 / 30

Category: Power Plant

10) 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

11 / 30

Category: Electrical Machines

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

a) Current

b) Voltage

c) Resistance

d) Inductance

12 / 30

Category: Uncategorized

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

a) Addition

b) Subtraction

c) Multiplication

d) Division

13 / 30

Category: Probability

13) 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

14 / 30

Category: Uncategorized

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

a) Jet fuel

b) Geothermal

c) Solar

d) Both B & C

15 / 30

Category: Uncategorized

15) 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

16 / 30

Category: Uncategorized

16) Admittance is the reciprocal of

a) Capacitive reactance

b) Inductive reactance

c) Reactive power

d) Impedance

17 / 30

Category: Power System Analysis

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

a) Trans Conductance

b) Maximum Resistance

c) Trans Resistance

d) Limiting Resistance

18 / 30

Category: Uncategorized

18) 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

19 / 30

Category: Uncategorized

19) Power in AC circuit is found by

a) VI sin (phi)

b) VI tan (phi)

c) VI cos (phi)

d) VI

20 / 30

Category: Singal and Systems

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

a) Discrete

b) Continuous

c) Random

d) Digital

21 / 30

Category: Power Plant

21) ______ 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

22 / 30

Category: Singal and Systems

22) 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

23 / 30

Category: Power System Analysis

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

a) Two

b) Three

c) Four

d) Five

24 / 30

Category: Power Transmission and Distributions

24) 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

25 / 30

Category: Electrical Machines

25) A transformer transforms

a) Voltage

b) Power

c) Frequency

d) Current

e) Both A & D

26 / 30

Category: Uncategorized

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

a) Cosine

b) Sec

c) Cosec

d) Tan

27 / 30

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

We have to maintain flatness of the surface.

28 / 30

Category: Power System Analysis

28) 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

29 / 30

Category: Electroncis

29) 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

30 / 30

Category: Uncategorized

30) 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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The average score is 3%

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Aprende MATLAB y Simulink de CERO a EXPERTO

1000 Coupons are used

24 hours passed

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

Disclaimer:

These course coupons are offered by the official website and we do not have any type of ownership of courses.

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Aprende MATLAB y Simulink de CERO a EXPERTO

1000 Coupons are used

24 hours passed

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

Disclaimer:

These course coupons are offered by the official website and we do not have any type of ownership of courses.

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