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 tachometer has a sensitivity of 4 V/1000 rpm. Express the gain constant of the tachometer in the units volts/(rad/sec). |

A. | 0.0489 [Wrong Answer] |

B. | 0.0381 [Correct Answer] |

C. | 2 [Wrong Answer] |

D. | none of these [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 :**

⇒ In the given figure the number of combinations of three non touching loop

0

1

2

3

⇒ For the design of a sequential circuit having 9 states, minimum number of memory elements required is

3

4

5

9

⇒ For a 1 cm x 2 cm air filled rectangular waveguide the maximum frequency should be less than about

1000 MHz

5000 MHz

14000 MHz

140000 MHz

⇒ In an R-S latch, to set the output to high

R is low and S is high

R and S are high

R and S are low

R is high and S is low

⇒ RS latch can be built with

NOR gates

NAND gates

NOR or NAND gates

none of the above

⇒ Rank of the matr

3

2

1

4

⇒ The mass of an electron is nearly

9.1 x 10

^{-27}kg

9.1 x 10

^{-29}kg

9.1 x 10

^{-31}kg

9.1 x 10

^{-35}kg

⇒ For a message signal

*m*(

*t*) = cos (2p

*f*) and the carrier frequency

_{m}t*f*, which of the following represents a single side band (SSB) signal?

_{c}cos (2p

*f*) cos (2p

_{m}t*f*)

_{c}tcos (2p

*f*)

_{c}tcos [2p(

*f*+

_{c}*f*) t]

_{m}[1 + cos (2p

*f*) cos (2p

_{m}t*f*)]

_{c}t⇒ For a MOS capacitor fabricated on a P-type semiconductor, strong inversion occurs when

surface potential is equal to Fermi potential

surface Potential is greater than Fermi potential

surface potential is -

*ve*and equal to Fermi potential in magnitude

surface potential is +

*ve*and equal to twice the Fermi potential

⇒ As temperature increases

the forbidden energy gap in silicon and germanium increase

the forbidden energy gap in silicon and germanium decrease

the forbidden energy gap in silicon decreases while that in germanium decreases

the forbidden energy gap in silicon increases while that in germanium decreases

⇒ For a short dipole having an effective length less than half the wavelength the radiation resistance is

proportional to length

proportional to square root of length

proportional to square of length

none of the above

⇒ Three point tracking can be achieved with

gang condenser

variable selectivity

paddar capacitor

any of the above

⇒ In an op-amp comparator, the positive or negative output is

saturated

amplifier

unsaturated

any of the above

⇒ In a multiphase chopper, the different choppers operate in

series and all simultaneously

parallel and one at a time

parallel and simultaneously

either (b) or (c)

⇒ Electric dipole moment is expressed in debye unit.

TRUE

FALSE

⇒ The directive gain of a transmitting antenna is

proportional to wavelength

inversely proportional to wavelength

proportional to square of wavelength

inversely proportional to square of wavelength

⇒ In Z

_{RC}(

*s*) has a pole at

*s*= 0, the first element in second Foster realization is

R

C

R and C in series

R and C in parallel

⇒ In figure V

_{CC}= + 30 V, I

_{C}corresponding to Q point is 1 mA. If R

_{C}= 5 kΩ and R

_{E}= 5 kΩ, V

_{CE}corresponding to Q poin

30 V

20 V

25 V

5 V

⇒ In TV transmission the modulation schemes for video and audio are respectively

FM and AM

FM and FM

AM and FM

AM and AM

⇒ To measure moisture in wood, the most suitable method is

electric conduction

electrical-capacitive

absorption of radiation

equilibrium-moisture Vs humidity

⇒

**Assertion (A):** Transient periods are of short duration but can result in dangerously high voltages and currents.

**Reason (R):** Circuit equations in transient analysis are integral differential equations.

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 true, R is false

A is false, R is true

⇒ In series as well as parallel resonant circuits, increasing the value of resistance would lead to

decrease in bandwidth of both the circuits

increase in bandwidth of both the circuits

decrease in bandwidth in series circuit and increase in parallel circuit

increase in bandwidth in series circuit and decrease in parallel circuit

⇒ For determining the network functions of a two-port network, it is required to consider that

all initial conditions remain same

all initial conditions are zero

part of initial conditions are equal to zero

initial conditions vary depending on nature of network

⇒ Which of the following devices uses a slow wave structure?

Klystron two cavity amplifier

Klystron multicavity amplifier

Reflex klystron oscillator

TWT

⇒ In PCM, the quantization noise depends on

sampling rate

signal power

number of quantization level

signal energy

⇒

*n*type semiconductors

are negatively charged

are produced when indium as impurity is added to germanium

are produced phosphorus as impurity is added to silicon

none of the above

⇒ The current I

_{CBO}flows in

base and emitter leads

base and collector leads

collector and emitter leads

collector, emitter and base leads

⇒ A linear time-invariant, causal continuous time system has a rational transfer function with simple poles at

*s*= - 2 and

*s*= - 4, and one simple zero at

*s*= - 1. A unit step

*u*(

*t*) is applied at the input of the system. At steady state, the output has constant value of 1. The impulse response of this system is

[exp (- 2

*t*) + exp (-4

*t*)]

*u*(

*t*)

[-4 exp (- 2

*t*) + 12 exp (-4

*t*) - exp (-

*t*)]

*u*(

*t*)

[-4 exp (- 2

*t*) + 12 exp (-4

*t*)]

*u*(

*t*)

[-0.5 exp (- 2

*t*) + 1.5 exp (-4

*t*)]

*u*(

*t*)

⇒ Which family of logic circuits uses field effect transistors?

TTL

CMOS

Both LED and well as LCD

None of the above

⇒ If V = 4 in the figure, the value of I

_{s}is give

0.25

5/2 A

0

none