Users Also Read

MCQ's Search Engine

Electrical Engineering

Mechanical Engineering

Civil Engineering

Automobile Engineering

Chemical Engineering

Computer Engineering

Electronics Engineering

Medical Science Engg

Q1. | In integral cycle control of ac regulators, the period of integral cycle control, i.e., (m + n) T should be |

A. | less than mechanical or thermal time constant of the system [Correct Answer] |

B. | more than the mechanical or thermal time constant of the system [Wrong Answer] |

C. | more or less than the mechanical or thermal time constant [Wrong Answer] |

D. | very high [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ In LIFO

only the top of the stack is immediately accessible

only the top of the stack is never accessible

only the first-in is accessible

only the first-in is not accessible

⇒ In voltage amplifiers, the load resistance

should be a small as possible

should be as large as possible

must be equal to output impedance

must be half of output impedance

⇒ In a parallel resonant circuit, the circuit current at resonance is maximum.

TRUE

FALSE

⇒ A fascimile reproduction has a specification of 200 lines per frame, progressive scanning and 5 frames per second. The time to scan one line is

5 ms

2.5 ms

1 ms

0.1 ms

⇒ For a Hertz dipole antenna, the Half Power Beam Width (HPBW) in the E-plane is

360°

180°

90°

45°

⇒ A discrete random variable X takes values from 1 to 5 with probabilities as shown in the table. A student calculates the mean of X and 3.5 and her teacher calculates the variance of X as 1.5. Which of the following statements is t

Both the student and the teacher are right

Both the student and the teacher are wrong

Both the student is wrong but the teacher is right

The student is right but the teacher is wrong

⇒ Maximum effective aperture of an antenna which is operating at a wavelength of 3 meters and has a directivity of 100

71.68 m

^{2}

716 m

^{2}

7.16 m

^{2}

71.6 m

^{2}

⇒ A lens has a hyperfocal distance of 7.5 m. It is focused at 7.5 m. Then

all objects from 7.5 m to infinity will appear in focus

all objects from 3.75 m to infinity will appear in focus

all objects from 0 to 7.5 m will appear in focus

all objects from 0 to 3.75 m will appear in focus

⇒ Which of these are 16 bit microprocessors?

80286

MC68000

Z8000

All

⇒ Class A and Class B power amplifiers predominate at

audio frequencies

radio frequencies

all frequencies

audio and radio frequency

⇒

**Assertion (A):** A good op-amp should have very large band width

**Reason (R):** An ideal op-amp should have infinite input resistance and zero output resistance

Both A and R are correct and R is correct explanation for A

Both A and R are correct but R is not correct explanation for A

A is correct R is wrong

A is wrong R is correct

⇒ Which of the following meters requires an external power source for its operation?

P.M.M.C. meter

Hot wire ammeter

Electronic voltmeter

Electrodynamometer

⇒ Consider the following stateme

1 and 2 only

1, 2 and 4

2 and 3 only

2, 3 and 4

⇒ The hexadecimal number BBC7 is equivalent to decimal number

49761

46791

47691

49761

⇒ The pole zero plot of the given figure is

non-minimum phase function

minimum phase function

all pass function

either (b) or (c)

⇒ The orbital period of a geostationary communication satellite is

12 hours

24 hours

36 hours

48 hours

⇒ A 16 bit counter type ADC uses 1 MH

*z*clock then its maximum conversion time is __________ .

16 μ

*s*

15

*ms*

6.6

*ms*

66

*ms*

⇒ Which dc servomotor has minimum inertia?

Slotted armature construction

Surface wound armature

Surface wound with stationary rotor

Either (a) or (b)

⇒ For a NPN bipolar transistor, what is the main stream of current in the base region?

Drift of holes

Diffusion of holes

Drift of electrons

Diffusion of electrons

⇒ Circular polarized waves result when

magnitudes are the same

phases are the same

magnitudes are same and phase difference is 90°

magnitudes are same and phase difference is zero

⇒ A class C amplifier has input frequency of 200 kHz. If width of collector pulses is 0.1 μ

*s*, duty cycle is

0.01

0.02

0.1

0.2

⇒ Symmetrical square wave of time period 100 μs can be obtained from square wave of time period 10 μs by using

divide by 5 circuit

divide by 2 circuit

divide by 5 circuit followed by divide by 2 circuit

BCD counter

⇒ Which of the follow

Voltage series feedback and decrease I/P impedance.

Voltage shunt feedback and decrease I/P impedance.

Voltage series feedback and increase I/P impedance.

Voltage shunt feedback and increase I/P impedance.

⇒ As per temperature limits, the number of categories of solid dielectrics are

7

6

8

5

⇒ BCD equivalent of - 8

_{10}is

110

10110

11000

1000

⇒ An ideal op-amp requires

zero input offset voltage

low input offset voltage

high input offset voltage

infinite input offset voltage

⇒ A current wave is

*i*= 100

*e*

^{-60t}The initial and final values of current are

100 and 50

100 and 0

0 and 100

100 and 100

⇒ A sinusoidal voltage is written as

*v*= I

_{m}(R

^{2}+ X

_{C}

^{2})

^{0.5}sin 314

*t*. Its peak value and frequency are

I

_{m}and 50

I

_{m}(R

_{2}+ X

^{2}

_{C})

^{0.5}and 50

0.707 I

_{m}(R

_{2}+ X

^{2}

_{C})

^{0.5}and 50

2 I

_{m}(R

_{2}+ X

^{2}

_{C})

^{0.5}and 50

⇒ In figure, the transmission parameters are A = C = 1, B = 2 and D = 3. Then Z

_{in12/13 Ω13/12 Ω3 Ω4 Ω}

⇒ A series LCR circuit consisting of R = 20 Ω, | X

_{L}| = 20 Ω and | X

_{C}| = 20 Ω, connected across an A.C. supply of 200 V rms. The rms voltage across the capacitor is

100 ∠ 45

400 ∠ -90°

400 ∠ +90°

100 ∠ -45