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. | The M circle for M = 1 is the |

A. | straight line at x = - 0.5 [Correct Answer] |

B. | critical point (-l, jo) [Wrong Answer] |

C. | circle with r = 0.33 [Wrong Answer] |

D. | circle with r = 0.67 [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 :**

⇒ SSB stands for

Single Side Band

Suppressed Side Band

Single Sound Band

Single Sky Band

⇒ Zener diode is invariably used with

forward bias

reverse bias

either (a) or (b)

zero bias

⇒ The inverse Fourier transform of δ(

*t*) is

∪(

*t*)

1

δ(

*t*)

*e*

^{j2pt}

⇒ In a radio receiver, the local oscillator is tuned to a frequency

lower than the incoming frequency

higher than the incoming frequency

equal to incoming frequency

any of the above

⇒ Which of the following is a false statement about Armstrong modulation system?

The system is basically phase, not frequency, modulation

AFC is not needed, as a crystal oscillator is used

Equalization is unnecessary

Frequency multiplication must be used

⇒ Two sinusoidal waves 1 and 2 have peak values V

_{m1}and V

_{m2}. Wave 1 is leading wave 2 by ∠θ. Which of the following is correct?

*v*

_{1}= V

_{m1}sin θ and

*v*

_{2}= V

_{m2}cos θ

*v*

_{1}= V

_{m1}sin ω

*t*and

*v*

_{2}= V

_{m2}sin (ω

*t*- θ)

*v*

_{1}= V

_{m1}sin (ω

*t*+ θ/2) and

*v*

_{2}= V

_{m2}sin ω

*t*

none of the above

⇒ Transformer coupling is mostly used in

RF amplifier

audio amplifier

both audio and RF amplifier

none of the above

⇒ The circuit shown in the figure has 4 boxes each described by inputs P, Q, R and outputs Y, Z

4 bit adder giving P + Q

4 bit subtractor giving P - Q

4 bit subtractor giving Q - P

4 bit adder giving P + Q + R

⇒ In figure, V

_{CC}= + 30 V, R

_{1}= 200 kΩ and R

_{2}= 100 kΩ. If V

_{BE}= 0.7 V, the voltage a cross R

_{E+20 V+19.3 V+10 V+9.3 V}

⇒ ROC of sequence

*x*[

*n*] = δ[

*n*] is

Not exist

*z*= 0

Entire Plane

Entire Plane expect

*z*= 0,

*z*= ∞

⇒ Which of the following instructions in 8085 does not belong to data transfer group?

`LDA addr`

`STA addr`

`XCHG`

`SUB r`

⇒ The system matrix of continuous time system described in state variable for

*x*< 1/2,

*y*< 1/2

*x*> 1/2,

*y*> 0

*x*< 0,

*y*< 0

*x*< 0,

*y*< 1/2

⇒ For AM receivers the standard IF frequency is

106 kHz

455 kHz

1.07 MHz

10.7 MHz

⇒ The function of duplexer in a RADAR is

to permit the use of same antenna for transmission and reception

to provide gain to the transmitted power

to amplify the received signal

both (b) and (c)

⇒ In figure the voltage drop across the 10 Ω resistance is 10 V. The resistan

is 6 Ω

is 8 Ω

is 4 Ω

cannot be found

⇒ A sample of N type semiconductor has an electron density of 6.25 x 10

^{18}/cm

^{3}at 300 K. If intrinsic concentration of carriers in this sample is 2.5 x 10

^{13}/cm

^{3}at this temperature, the hole density is

10

^{6}/ cm

^{3}

10

^{8}/ cm

^{3}

10

^{10}/ cm

^{3}

10

^{12}/ cm

^{3}

⇒ FM receivers using the standard 88 to 108 MHz band use IF of

8 MHz

9.9 MHz

10.7 MHz

12.2 MHz

⇒ In a series regulated power supply circuit the voltage gain of pass transistor satisfies the condition

A

_{v}→ ∞

1 << A

_{v}→ ∞

A

_{v}≈ 1

A

_{v}<< 1

⇒ Pick the Odd one out

MOSFET

FET

Planer transistor

Unijunction transistor

⇒ A counter type A/D converter contains a 4 bit binary ladder and a counter driven by a 2 MHz clock. Then conversion time

8 μ sec

10 μ sec

2 μ sec

5 μ sec

⇒ The characteristic equation of flip-flop gives the next state Q

_{N + 1}in terms of present state Q

_{N}and the inputs. Which one of the following is the characteristic equation of J - K flip-flop?

Q

_{N+1}= JQ

_{N}+ KQ

_{N}

Q

_{N+1}= J + KQ

_{N}

Q

_{N+1}= KQ

_{N}+ JQ

_{N}

Q

_{N+1}= K + JQ

_{N}

⇒ In following circuit, R

_{B}will be if V

_{CC}= 10 V, V

_{S}= 2 V, R

_{C}= 5 kΩ, R

_{S}= 90 kΩ, β = 50, I

_{CE}= 0, V

_{CEsat}= 0

230 K

235 K

240 K

250 K

⇒ FIR digital filter having __________ stability than FIR filter.

good stability

poor stability

stability not guarnteed

poor stability

⇒ To study electromagnetic radiations from astronomical objects, radio astronomers use

low frequencies

medium frequencies

microwaves

either (

*a*) or (

*b*)

⇒ In figure,

*i*(0

^{-}) and

*v*(0

^{-}) are zero. The switch is closed at

*t*= 0,

*i*(0

^{+}) and (∞)

3 A and 1.5 A

1.5 A and zero

3 A and zero

1.5 A and 3 A

⇒ Purpose of antenna is

to transmit and receive energy

to convert EM into electrical

to convert electrical into EM

all of the above

⇒ Which of the following can provide two or more voice circuits with the same carrier?

SSB

Carrier reinsertion

Lincompex

Independent side band system

⇒ When a particular mode is excited in a waveguide, these appears an extra electric components in the direction of propagation. The resulting mode is

Transverse electric

Transverse magnetic

Longitudinal

Transverse Electromagnetic

⇒ A DIAC has two terminals, anode and cathode.

TRUE

FALSE

⇒ Surface integral of the electric field intensity is

differential of volume flux

electrical charge

net flux emanating from the surface

none of the above