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. | If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant. |

A. | TRUE [Correct Answer] |

B. | FALSE [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 :**

⇒ Shifting digits from left to right and vice versa is needed in

storing numbers

arithmetic operations

counting

storing and counting

⇒ In

*n*-well CMOS fabrication substrate is:

heavily doped

*n*-type

heavily doped

*p*-type

lightly doped

*n*-type

lightly doped

*p*-type

⇒

**Assertion (A):** The resistivity of intrinsic semiconductor decreases with increase in temperature.

**Reason (R):** The forbidden gap decreases with increase in temperature.

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

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

A is true but R is false

A is false but R is true

⇒ A 6 bit DAC uses binary weighted resistors. If MSB resistor is 20 k ohm, the value of LSB resistor is

20 k ohm

80 k ohm

320 k ohm

640 k ohm

⇒ For an

*m*x

*n*matrix A, the eigen values are the roots of the characteristic equation

|I - A|

|λI - A| = 0

|λA - I| = 0

|A - I| = 0

⇒ The maximum number of alphabets/digits or special symbots for character constants in C is

1

2

4

8

⇒ Programs like compilers, assemblers etc. are stored in a mircocomputer in

registers

cache memory

primary memory

mass storage

⇒ The real part of complex dielectric constant and tanδ for a dielectric are 2.1 and 5 x 10

^{-4}at 100 Hz respectively. The imaginary part of dielectric constant at 100 Hz is

1.05 x 10

^{-3}

2.1 x 10

^{-3}

5 x 10

^{-3}

1.05 x 10

^{-2}

⇒ The function of interface circuit is

to match output conditions of driver with input conditions of load device

to match output conditions of load device with input conditions of driver

both (a) and (b)

neither (a) nor (b)

⇒ Which is most important subsystem for recovering and reconstructing signal in a TDM system?

Envelope detector followed by a low pass filter

Synchronization ckt for proper timing

Bandpass filter to segregate channels

Coherent detector to ensure frequency and phase connection

⇒ In a JFET avalanche breakdown occurs when V

_{DS}= 22 V and V

_{GS}= 0. If V

_{GS}= -1 V, the avalanche breakdown will occur at

V

_{DS}= 22 V

V

_{DS}more than 22 V

V

_{DS}equal to or more than 22 V

V

_{DS}less than 22 V

⇒ When the channel is noisy, producing a conditional probability of error

*p*= 0.5; the channel capacity and entropy function would be, respectively,

1 and 1

1 and 0.5

0.5 and 1

0 and 1

⇒ Which of the following has highest conductivity?

Silver

Aluminium

Tungsten

Platinum

⇒ Which of the following does not show non-linear V-I characteristics?

Schottky diode

Tunnel diode

Thermister, at a fixed temperature

*p-n*junction diode

⇒ In a modem digital computer, a subtractor in normally not used because

subtractors are very expensive

the design of a subtractor is very complex

the adder is geared for doing subtraction

most of the programs do not require subtraction

⇒ Which of the following is decimal equivalent of the binary 1111111?

27

87

127

167

⇒ Which of the following statement regarding waveguides is

*incorrect*?

At waveguide can be coupled to a coaxial cable

At frequencies below the cut off value the wave progresses across the waveguide after total reflections

Waveguides are usually air filled hollow conducting metallic tubes for transmitting UHF and microwaves

Waveguides can handle large power at UHF and microwaves

⇒ Poynting vector is associated with

flux in magnetic field

power flow in electrostatic field

current in electrostatic field

charge in electrostatic field

⇒ Consider the differential amplifier shown in figure. (Assume β is very hi

5 V

10 V

15 V

30 V

⇒ A better SNR can be obtained in a PCM by

increasing sampling rate above Nyquist rate

decreasing the code bits

reducing channel bandwidth

increasing Quantization levels

⇒ The horizontal intercept of dc load line is the same as ideal

cut off point

saturation point

operating point

quasi saturation point

⇒ Which one of following is a stataic system?

*y*(

*n*) =

*x*(

*n*) -

*x*(

*n*- 1)

*y*(

*n*) =

*x*(2

*n*) -

*x*(2

*n*-1)

*y*(

*n*) =

*x*(

*n*- 1)

*y*(

*n*) =

*e*

^{x(n)}

⇒ The response to sinusoidal excitation can be found by

setting

*s*=

*j*ω in the network function

setting

*s*=

*-j*ω in the network function

taking inverse transform of network function

none of the above

⇒ In VHS format the width of tape is

2"

1"

1/2"

1/4"

⇒ The input to negative clamper has a peak value of V

_{p}. Then in the output the positive and negative peaks are nearly

0 and -2 V respectively

V

_{p}and -V

_{p}respectively

2 V

_{p}and 0 respectively

none of the above

⇒ For the Infix expression A + B - C + D the Postfix notation is

AB + C - D +

+ AB - C + D

AB - C + D

None of the above

⇒ Simplify : A + B + A B + (A + B)AB + C(B + AB)

B + A

*C*

C

1

⇒ In PCM, the biggest disadvantage as compared to AM is

larger bandwidth

larger noise

inability to handle analog signals

incompatibility with time division multiplex systems

⇒ Value of 'K' for the system for which the system is stab

*K*< 1

*K*> 1

*K*< 2

*K*> 2

⇒ If the numerator of Z(

*s*) is one degree higher than denominator, Z(

*s*) has a pole at infinity.

TRUE

FALSE