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 disturbance from adjacent telephone line is known as |

A. | cross fire [Wrong Answer] |

B. | cross talk [Correct Answer] |

C. | inductive disturbance [Wrong Answer] |

D. | none of the above [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 :**

⇒ Consider the following

only statement 1 is correct

only statement 2 is correct

both statements are correct

both the statements 1 and 2 are not correct

⇒ Number of fundamental cut-sets of any graph will be

same as the number of twigs

same as the number of tree branches

same as the number of nodes

equal to one

⇒ In an LC immittance H (

*s*)

the slope of

*d*H (

*j*ω)/

*d*ω is always negative

the slope of

*d*H (

*j*ω)/

*d*ω is always positive

the slope of

*d*H (

*j*ω)/

*d*ω may be positive or negative

the slope of

*d*H (

*j*ω)/

*d*ω is constant

⇒ For the system of the given figure, the closed loop poles ar

0 and -4

-2 ±

*j*6

2 ±

*j*6

-3 ±

*j*8

⇒ A number given in binary as 0101.01 is to be scaled up 4 times. The scaled up binary is

10101

1.0101

404.04

10.101

⇒

**Assertion (A):** For large signal variations an amplifier circuit has to be analysed graphically

**Reason (R):** The output characteristics of a transistor is nonlinear.

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

⇒ If σ is standard deviation, variation is

σ - 1

σ

^{1.5}

σ

^{2}

σ

^{3}

⇒ In a circular waveguide with radius

*r*, the dominant mode is

TM

_{01}

TE

_{01}

TM

_{11}

TE

_{11}

⇒ At a frequency less than the resonant frequency

series circuit is inductive and parallel circuit is capacitive

series circuit is capacitive and parallel circuit is inductive

both circuits are capacitive

both circuits are inductive

⇒ The OP-AMP circuit shown above represen

high pass filter

low pass filter

band pass filter

band reject filter

⇒ Waveguides are generally used above

20 MHz

100 MHz

200 MHz

1000 MHz

⇒ Calculate the directivity of a given linear end fire, uniform array of 20 element, each separated by λ/3

100

10

26.66

30

⇒

`ALU 1C 74181`

can accept two words each having2 bits

4 bits

8 bits

16 bits

⇒ The ground waves eventually disappear as one moves away from the transmitter because of

tilting

maximum single-hop distance limitation

interference from the sky waves

loss of line-of sight condition

⇒ Given below impulse response of two sys

*h*

_{1}(

*n*) non causal and stable

*h*

_{1}(

*n*) non causal and stable

*h*

_{1}(

*n*) causal and not stable

*h*

_{1}(

*n*) causal and stable

⇒ In an RL series circuit the inductance is 1H and current at an instant is 0.6 A. The energy stored in magnetic field is

0.36 J

0.18 J

0.09 J

0.03 J

⇒ In a single sideband suppressed carrier AM system, the modulation index is changed from 0 to 1, the power content of the signal

will be quarter

will be doubled

will increase by 50 percent

will increase by 25 percent

⇒

**Assertion (A):** An op-amp amplifier can amplify dc signal

**Reason (R):** An op-amp amplifier is a direct coupled amplifier

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

⇒ The reduced form of the func

A(C D + E F + D E) + D E

(A + C + D + E)(D + E + F)

(C + D + E + A)(A + D + E + F)

A C D + A E F + A(D ⊕ E)

⇒ 5 skilled workers can build a wall in 20 days; 8 semi-skilled worker can build a wall in 25days; 10 unskilled workers can build a wall in 30 days, If a team has 2 killed, 6 semi-skilled and 5 unskilled workers, how long will it take to build the wall?

20 days

18 days

16 days

15 days

⇒ Thermal run away of a transistor occurs when

heat dissipation from transistor is excessive

transistor joints melt due to high temperature

there is excessive leakage current due to temperature rise

none of the above

⇒ A resistance strain gauge has a resistance of about

100 Ω

25 Ω

10 Ω

1 Ω

⇒ How much is contributed by each bit in the code word of a PCM system under uniform and symmetric quantization to the signal to noise ratio?

3 dB

4 dB

5 dB

6 dB

⇒ Noise temperature of Sun is more than __________ °K.

1000

5000

100000

500

⇒ The most commonly used devices for differencing and amplification, in control systems, are

BJT amplifiers

FET amplifiers

operational amplifiers

either (a) or (b)

⇒ When performing numerical calculations in floating point arithmetic

- Error may occur due to finite representation of numbers.
- Error may occur due to rounding.
- Error may occur due to finite representation of inherently infinite process.

All

1 and 2 only

1 and 3 only

2 and 3 only

⇒ In figure, the charge on 0.8 μF capacito

100 μC

50 μC

40 μC

20 μC

⇒ In a second order system ω

*= 10 rad/sec and ζ = 0.1, then ω*

_{n}_{d}=

9.1 rad/sec

9.95 rad/sec

9 rad/sec

1 rad/sec

⇒ A gate function which occurs at

*t*=

*t*

_{0}and lasts for duration T can be written as

*u*(

*t*-

*t*

_{0}- T)

*u*(

*t*-

*t*

_{0}) =

*u*(

*t*-

*t*

_{0}- T)

*u*(

*t*-

*t*

_{0}) -

*u*(

*t*-

*t*

_{0}- T)

*u*(

*t*-

*t*

_{0}) -

*u*(

*t*-

*t*

_{0}+ T)

⇒ In an

*n*channel JFET

I

_{D}, I

_{S}and I

_{G}are considered positive when flowing into the transistor

I

_{D}and I

_{S}are considered positive when flowing into transistor and I

_{G}is considered positive when flowing out of it

I

_{D}, I

_{S}, I

_{G}are considered positive when flowing out of transistor

I

_{S}and I

_{G}are considered positive when flowing into transistor and I

_{D}is considered positive when flowing out of it