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 rms value of wave in figur |

A. | about 95 V [Wrong Answer] |

B. | about 80 V [Correct Answer] |

C. | about 50 V [Wrong Answer] |

D. | about 25 V [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 :**

⇒ As the temperature of an intrinsic semiconductor material is increased

additional holes are created in the conduction band

protons get excited

protons acquire charge

energy of the atom is increased

⇒ For a quadratic factor in denominator of transfer function the phase angle at corner frequency (in Bode phase angle plot)

is -90°

is +90°

depends on the damping factor

none of the above

⇒ - 56 is not a valid real constant in Fortran.

TRUE

FALSE

⇒ The state equations are in the form

X = AX + BW

X = AX + Bu

X = AX + Bx

either (a) or (b)

⇒ Volume control found on the front panel of television receivers

a ganged resistor

a variable resistor of logarithmic type

a variable resistor of linear type

a trimmer potentiometer

⇒ The conductivity of an intrinsic semiconductor is

generally less than that of a doped semiconductor

given by σ

_{1}=

*en*

_{i}(μ

_{n}- μ

_{p})

given by σ

_{1}=

*en*

_{i}(μ

_{p}+ μ

_{n})

given by σ

_{1}=

*n*

_{i}(μ

_{n}+ μ

_{p})

⇒ A narrow band noise show

AM only

AM and FM

FM

PCM

⇒ A reflex klystron oscillator uses

one cavity resonator

two cavity resonators

three cavity resonators

none of the above

⇒ The maximum usable frequency for the 'E' layer is 10 MHz.

TRUE

FALSE

⇒ Which of the following is correct in FORTRAN 77?

`PARAMETER PMOS = 9.8, NMOS = X`

`PARAMETER (PMOS = 9.8, NMOS = X)`

`PARAMETER PMOS = 9.8, NMOS = X`

`PARAMETER PMOS, NMOS = 9.8, X`

⇒ For stable network the real parts of poles and zeros of driving point functions must be

negative

negative or zero

zero

positive

⇒ Twelve resistance each 2 ohm are connected to form a cube, one resistance being in each arm of cube. The resistance between any two diagonally opposite comers is

1 Ω

2 Ω

4 Ω

8 Ω

⇒ Consider the following statements, SWR of a transmission line is infinite when the load is

- a short circuit
- a complex impedance
- an open circuit
- a pure reactance

1 and 3 only

1, 2, 3

2, 3, 4

1, 2, 4

⇒ The circuit shown in the figure, with R = 1/3 Ω, L = 1/4H, C = 3F has input voltage

*v*(

*t*) = sin2

*t*. The resulting current

*i*(

*t*

5 sin (2

*t*+ 53.1°)

5 sin (2

*t*- 53.1°)

25 sin (2

*t*+ 53.1°)

25 sin (2

*t*- 53.1°)

⇒ A circular waveguide has an infinite set of TE and TM modes.

TRUE

FALSE

⇒ In all metals

conductivity decreases with increase in temperature

current flow by electrons as well as by holes

resistivity decreases with increase in temperature

the gap between valence and conduction bands is small

⇒ Accumulator is an 8 bit register and is also known as register B.

TRUE

FALSE

⇒ Assume that only

*x*and

*y*logic inputs are available. What is the minimum number of 2-input NAND gates required to implement

*x*⊕

*y*?

2

3

4

5

⇒ A rectangular pulse train

*s*(

*t*) is shown in figure is convolved with the signal cos

^{2}(4p x 10

^{3}

*t*). The convolved signal will

DC

12 kHZ sinusoidal

8 kHZ sinusoidal

14 kHZ sinusoidal

⇒ The Nyquist plot of a stable, transfer function

*G*(

*s*) is shown in the figure. We are interested in the stability of the closed loop system in the feedback configuration sh

G(

*s*) is an all-pass filter

G(

*s*) has a zero in the right-half plane

G(

*s*) is the impedance of a passive network

G(

*s*) is marginally stable

⇒ The circuit in figur

positive clamper

negative clamper

positive peak clipper

negative peak clipper

⇒ Noise limiter is provided on AM receivers to

reduce interfering noise due to ignition system

reduce noise due to electrical storms

reduce interference due to electrical machinery

all of the above

⇒ For the system in the given figure. The transfer function C(

*s*)/R(

*s*

G

_{1}+ G

_{2}+ 1

G

_{1}G

_{2}+ 1

G

_{1}G

_{2}+ G

_{2}+ 1

G

_{1}G

_{2}+ G

_{1}+ 1

⇒ Both X and Y plates of a CRO are excited by ac signals. The display is an ellipse which makes one rotation in 5 seconds. This means that

the frequency of one input is 5 times that of other

the difference between the frequencies of the two signals is one fifth of hertz

the difference between the frequencies of the two signals is 5 Hz

either (a) or (c)

⇒ If (10)

_{x}x (10)

_{x}= (100)

_{x}; (100)

_{x}x (100)

_{x}= (10000)

_{x}then x can take value :

2

5

10

all of these

⇒ Which of the following counters can be used to divide the clock frequency of a microprocessor by 5?

3 bit counter

5 bit counter

mod 3 counter

mod 5 counter

⇒ In which of the following is the width of junction barrier very small?

Tunnel diode

Photo diode

PIN diode

Schottky diode

⇒ An 8 bit transistor register has output voltage of low-high-low-high-low-high-low-high. The decimal number stored is

105

95

85

75

⇒ Negative feedback reduces noise originating at the amplifier input.

TRUE

FALSE

⇒ A short-circuit is that which is

used short pieces of wire

goes only a short distance

is used for dimming light

offer very low resistance path for current to flow