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. | A two branch parallel tuned circuits has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. The bandwidth is 200 radians/sec. A load of resistance R_{L} is connected in parallel. The new bandwidth will be |

A. | 200 rad/sec [Wrong Answer] |

B. | more than 200 rad/sec [Correct Answer] |

C. | less than 200 rad/sec [Wrong Answer] |

D. | 200 rad/sec or less [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 :**

⇒ Television receiver antenna is usually

loop type

yagi antenna

parabolic dishes

none of the above

⇒ Low-orbit satellites are not used for communications because they

produce sonic booms

do not provide 24 hour/ day contact to the users on Earth

heat up and melt

none

⇒ Which of the following is not a valid real constant in C?

1.2

*e*2.0

-2.3

*e*- 2

-2.3

*E*2

-2.3

*e*2

⇒ For an ideal 3000 Hz channel, Nyquist rate is

3000 bps

6000 bps

9000 bps

12000 bps

⇒ Y = A + A B is the same as

Y = AB

Y = A + B

Y = A + B

Y = A + B

⇒ For low impedance SAW filter the most suitable material for substrate of SAW filter is

PZT ceramics

ZnO

Lithium titanate

Lithium neobate

⇒ A 750 A circuit uses thyristor of current rating 175 A. If derating is 25%, the number of thyristors in parallel is

3

4

6

10

⇒ The number of branches of root locus plot is equal to

the number of roots of characteristic equation

double the number of roots of characteristic equation

the number of roots of characteristic equation minus one

the number of roots of characteristic equation plus one

⇒ A 1 μF capacitor is connected to 12 V battery. The energy stored in the capacitor is

12 x 10

^{-6}J

24 x 10

^{-6}J

48 x 10

^{-6}J

72 x 10

^{-6}J

⇒ If wave of critical frequency 30 MHz is departing at an angle of 60°, then the MUF is given to be

10 MHz

15 MHz

30 MHz

60 MHz

⇒ Which of these are two state devices?

Lamp

Punched card

Magnetic tape

All of the above

⇒ The decimal equivalent of binary 1101.11 is

9.75

13.75

11.5

11.75

⇒ Consider a multiplexer with X and Y as data inputs and Z as control input. Z = 0 selects input X and Z = 1 selects input Y. What are the connections required to realize the 2-variable Boolean function

*f*= T + R, without using any additional hardware?

R to X, 1 to Y, T to Z

T to X, R to Y, T to Z

T to X, R to Y, 0 to Z

R to X, 0 to Y, T to Z

⇒ The speed at which axial electric field due to signal advances in a TWT is equal to

speed of light

(speed of light) (helix pitch helix circumference)

(speed of light) (helix circumference helix pitch)

(speed of light) (helix pitch) (helix circumference)

⇒ Data can be changed from spatial code to temporal code and vice-versa by using

ADC and DAC

shift Register

synchronous counter

timers

⇒ Which of the following is correct (FDM means Frequency Division Multiplexing and TDM means Time Division Multiplexing)?

FDM requires lower bandwidth but TDM has more noise immunity

FDM has more noise immunity and requires lower bandwidth than TDM

FDM requires channel synchronization while TDM has more noise immunity

FDM requires more multiplexing while TDM requires band pass filter

⇒ In a TV studios, flying spot scanner is a device for

mixing video and audio signals

telecasting feature films

live telecast of outdoor programs

telecast of indoor music programs

⇒ If a EM wave propagating in z direction then

component of EM wave will exist in

*z*direction

component of EM wave will not exist in

*z*direction

component of EM wave will exist in

*y*direction

component of EM wave will exist in

*x*direction

⇒ In an idealized half wave rectified system the average and r.m.s. values of voltage are __________ respectively.

2V

_{m}/p, V

_{m}/2

V

_{m}/p, V

_{m}/2

V

_{m}/p, V

_{m}/2

V

_{m}.p, V

_{m}/2

⇒ The ionosphere plays a significant role in radio wave propagation at

high frequency

ultra-high frequencies

microwave frequency

optical frequencies

⇒ When a ferromagnetic substance is magnetised, small changes in dimensions occur. Such a phenomenon is known as

magnetic hystresis

magnetic expansion

magneto striction

magneto calorisation

⇒ Find 'X' in the circuit be

∏(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)

0

Σ(14)

1

⇒ In a tape recorder

the width of air gaps of record and erase heads is almost equal

the air gap of record head is wider than the air gap of erase head

the air gap of erase head is wider than the air gap of record head

any of the two air gaps can be wider than the other

⇒ Many circles are drawn in a Smith chart used for transmission line calculations. The circle shown in the figure represe

unit circles

constant resistance circles

constant reactance circles

constant reflection coefficient circles

⇒ In terms of classical representation of electrons

an atom is essentially empty

an atom is essentially full

an atom may be essentially empty or full depending on the material

an atom may be essentially empty or full depending on temperature

⇒ The input 3-dB frequency is :

100 Hz

148 Hz

100 kHz

None

⇒ In a tape recorder the erase head is

engaged during playback but disengaged during recording

engaged both during recording and playback

disengaged both during recording and playback

engaged during recording but disengaged during playback

⇒

**Assertion (A):** C has a large number of library functions classified as arithmetic functions, data conversion functions, character classified functions, string manipulation functions, searching and sorting functions etc.

**Reason (R):** 8086 uses a segment : offset addressing scheme.

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

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

A is correct R is wrong

A is wrong R is correct

⇒ If an admittance Y(

*s*) has a term K

*s*, the realization would give

an inductance of value K

a resistance of value K

a capacitance of value K

either (a) or(c)

⇒ The current through a 1 mH inductance is

*i*(

*t*) = 2.56 x 10

^{-2}- 4 x 10

^{3}

*t*for 2 ≤

*t*≤ 20 μ sec. The voltage across the inductor is

4

8

0

8 x 10

^{3}