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 second order system delay time t is the time required to reach_{d} |

A. | half the final value for the very first time [Correct Answer] |

B. | the final value for the very first time [Wrong Answer] |

C. | 90% of the final value for the very first time [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 :**

⇒ Bandwidth will be

*a*.

*b*

*a*+

*b*

*a*

*b*

⇒

**Assertion (A):** Different symbols are used for different gates

**Reason (R):** IEEE symbols are the same as traditional symbols for gates.

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

⇒ The resistance values of a PIN diode under positive bias and negative bias respectively are about

a few ohms and a kilo ohms

about 100 ohms and 1000 ohms

about 0.1 ohm and 100 ohms

about 1000 ohms and 10000 ohms

⇒ If the op-amp in figure has a unity gain frequency of 1 MHz, the cut off frequenc

100 kHz

1 MHz

10 MHz

90 MHz

⇒ For the binary number 11101000, the equivalent hexadecimal number is

F 9

F 8

E 9

E 8

⇒ Which of the following is type declaration statement in C?

int bar

*s*=

*s*+ 1

king = horse + 1

prin = prin * prin

⇒ The value of a in a transistor

is always equal to 1

is less than 1 but more than 0.9

is about 0.4

is about 0.1

⇒ FSK is a system involving

pulse modulation

frequency modulation

amplitude modulation

phase modulation

⇒ If there are M equally likely and independent messages and M = 2

^{N}where N is an integer, the information in each message is equal to

N bits

0.5 N bits

2 N bits

4 N bits

⇒ Which of the following represents the decimal form of binary 0.0111?

0.16

0.22728

0.9375

0.7964

⇒ For a photoengraving the mask used is

master mask

slave mask

working mask

photo mask

⇒ In the given figure the input frequency

*f*= 10(1/2 p

0 dB

3 dB

-3 dB

-20 dB

⇒ If all other parameters are the same, a capacitor with mica as dielectric has higher capacitance than air capacitor.

TRUE

FALSE

⇒ Status register in the 8156 is read with

IN 20 H

OUT 20 H

either (a) or (b)

none of the above

⇒ Hexadecimal number F is called to octal number

15

16

17

18

⇒ Find

*V*

_{o}(

*t*) for the following circ

0 V

5 V

3 V

2 V

⇒ The total number of leads in SUS, SBS and SCS respectively are

3, 3, 4,

3, 3, 3

2, 3, 3

3, 3, 5

⇒ A transistor may fail due to

open weld at the wire leads to the semi-conductor

short circuit caused by momentary overloads

overheating due to circuit failures

any of the above

⇒ For a second order system with 0 < ξ < 1, the angle which poles make with negative real axis is

sin

^{-1}ξ

cos

^{-1}ξ

tan

^{-1}ξ

cot

^{-1}ξ

⇒

**Assertion (A):** In a BCD to 7 segment decoder the number of outputs active at one time is always the same.

**Reason (R):** A decoder can be used to interface BCD input to LED display.

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

⇒ The function of shunt in an ammeter is to

by pass the current

increase sensitivity of meter

increase resistance of meter

all of the above

⇒ A particular green LED emits light of wavelength 5490, Å, the energy bandgap of the semiconductor material used there is ..

*h*= 6.6 x 10

^{-34}J sec.

2.26 eV

1.98 eV

1.17 eV

0.74 eV

⇒ A series R-L circuit has R = 1 Ω and L = 1 H. It is excited by a V battery at

*t*= 0. The steady state condition is reached at

*t*= 1

*s*

*t*= 0.1

*s*

*t*= 0

*s*

*t*= ∞

⇒ Consider the transmission line of length 37.5 cm, which is terminated into zero resistance. This line is being exited by a source of 1 GHz which has an internal impedance of 50 Ω. What is the input impedance of the line as seen by the source?

50 Ω

Zero Ω

100 Ω

Infinite Ω

⇒ In a CE amplifier the input impedance is equal to the ratio of

ac base voltage to ac base current

ac base voltage to ac emitter current

ac emitter voltage to ac collector current

ac collector voltage to ac collector current

⇒ In an R-L circuit excited by a battery of voltage E, the current and voltage across resistor are 1-

*e*

^{-t}and 2(1 -

*e*

^{-t}) respectively. If there were an initial current of 2 A in the inductance, the voltage across resistance would have been

1 -

*e*

^{-t}

2 - 2

*e*

^{-t}

2 + 2

*e*

^{-t}

4 - 4

*e*

^{-t}

⇒ Under ordinary circumstances, impulse noise can be reduced in

FM only

AM only

both AM and FM

none of the above

⇒ Directive gain is

a power ratio

a voltage ratio

a current ratio

a distance ratio

⇒ McMurray Bedford full bridge inverter uses

natural commutation

auxiliary commutation

complementary commutation

any of the above

⇒ A class C amplifier has input frequency of 200 kHz. If width of collector pulses is 0.1 μ

*s*, duty cycle is

0.01

0.02

0.1

0.2