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

A. | is -90° [Correct Answer] |

B. | is +90° [Wrong Answer] |

C. | depends on the damping factor [Wrong Answer] |

D. | none of the above [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 :**

⇒ The secondary constants of a line are

Z

_{0}

Z

_{0}and γ

Z

_{0}, γ and wave velocity

Z

_{0}, γ and L

⇒

**Assertion (A):** The duty cycle of a class C amplifier affects the power dissipation of transistor

**Reason (R):** At higher harmonics the efficiency of a class C amplifier becomes poor

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

⇒ Wave guides are pressurised above normal atmospheric pressure for

increasing the power handling capacity

improving conductivity of walls

preventing higher modes from propagation

varying the wave impedance

⇒ 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

⇒ The total number of leads in SCR, DIAC and TRIAC respectively are

3, 2, 3

2, 3, 3

3, 3, 2

3, 2, 4

⇒ If a signal

*g*(

*t*) has energy E, then the energy of the signal

*g*(2

*t*) is equal to ...

E/2

E/4

*E*

2E

⇒ If X = 1 in the logic equation [X + Z { Y + (Z + X Y)}] { X + Z (X + Y)} = 1, then

Y = Z

Y = Z

Z = 1

Z = 0

⇒ The filter circuit for feeding tweeter has

an inductance in series and a capacitance in parallel

a capacitance in series and an inductance in parallel

a resistance in series and a capacitance in parallel

a capacitance in series and a resistance in parallel

⇒ A static excitation system uses

transformer and thyristors

transformer and ac exciter

dc exciter and ac exciter

transformer and dc exciter

⇒ A 16:1 multiplexer has 4 select input lines.

TRUE

FALSE

⇒ A quarter wave line open circuited at far end behaves as

inductance

L and C in parallel

capacitance

L and C in series

⇒ A BJT amplifier has a power gain of 0.5 from source to base. The power gain in dB is

-0.3 dB

-3 dB

-6 dB

-10 dB

⇒ The probability giving distribution of electrons over a range of allowed energy levels is known as

Maxwell's Distribution

Fermi-Dirac Distribution

Richardson Dushman Distribution

none of the above

⇒ Microwave signals follow the curvature of the earth and the phenomenon is known as

tropospheric scatter

duct propagation

Faraday effect

none of the above

⇒ If a microcomputer has a 64 K memory; what is the hexadecimal notations for the last memory location?

1111

1A1A

EEEF

FFFF

⇒ The light output of LED varies as (current)

^{n}. The value of

*n*is about

0.5

1

1.3

2.1

⇒ The counter shown in figure is built using 4 negative edge triggered toggle FFs. The FFs can be set synchronously when R = 0. The combinational logic required to realize a modulo 13 counte

F= Q

_{4}Q

_{3}Q

_{2}Q

_{1}

F= Q

_{4}+ Q

_{3}+ Q

_{2}+ Q

_{1}

F = Q

_{4}+ Q

_{3}+ Q

_{2}+ Q

_{1}

F = Q

_{4}Q

_{3}Q

_{2}Q

_{1}

⇒ Nichol's chart is symmetric about - 180° axis.

TRUE

FALSE

⇒ Radar principle is used in

detection of aircraft

burglar alarms

garage door openers

all of the above

⇒ The spins in a ferrimagnetic material are

all aligned parallel

partially aligned antiparallel without exactly cancelling out sublattice magnetisation

randomly oriented

all aligned antiparallel such that the sublattice cancels out exactly

⇒ In which of the following case the rating of the transformer to deliver 100 watts of d.c. power to a load, will be least?

Half wave rectifier

Full wave rectifier

Bridge type full wave rectifier

Three phase full wave rectifier

⇒ In a J-K FF we have J = Q and K = 1. Assuming the FF was initially cleared and then clocked for 6 pulses, the sequence at the Q output wil

10000

11001

10010

10101

⇒ The two orientations of worksheet page are called

portrait and landscape

auto text and auto correct

font and footer

header and footer

⇒ Temperature is analogous to

voltage

flux

charge

none of the above

⇒ Fourier transform of

*f*(

*t*) =

*j*ω F(

*f*)

2p

*f*F(

*f*)

F'(

*f*)

None

⇒ As compared to a BJT amplifier circuit, a JFET amplifier circuit

has low input impedance

has high input impedance

has very low input impedance

may have either low or high input impedance

⇒ The general purpose register code for accumulator in 8085 is

111

0

1

1111

⇒ The number FF in hexadecimal system is equivalent to number __________ in decimal system.

256

255

240

239

⇒ In a two phase servomotor the voltages applied to the two stator windings

are equal in magnitude and are in phase

are unequal in magnitude but are in phase

are equal in magnitude but have a phase difference of 90°

are unequal in magnitude and have a phase difference of 90°

⇒ A parallel plate capacitor with air as dielectric has a capacitance C. If the dielectric has a dielectric constant ∈

_{r}and the remaining dimensions are the same, the capacitance will be

C/∈

_{r}

∈

_{r}C

∈

^{2}

_{r}C

∈

^{3}

_{r}C