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Q1. | Frequency response approach is a simple approach to control system design. |

A. | TRUE [Correct Answer] |

B. | FALSE [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Multiplexer | 1. | Sequential memory |

B. | De-multiplexer | 2. | Converts decimal number to binary |

C. | Shift register | 3. | Data selector |

D. | Encoder | 4. | Routes single input to many outputs |

A-3, B-4, C-1, D-2

A-4, B-3, C-1, D-2

A-3, B-4, C-2, D-1

A-1, B-2, C-3, D-4

⇒ The virtual height of an ionospheric layer is __________ true height

equal to

less than

higher than

no relation

⇒ The electrolyte in a dry cell is completely dry.

TRUE

FALSE

⇒ Binary number 1101 is equal to octal number

17

16

15

14

⇒ An electron rises through a voltage of 100 V. The energy acquired by it will be

100 eV

100 joules

(100)

^{1.2}eV

(100)

^{1.2}joules

⇒ The scale of dynamometer wattmeter is non linear.

TRUE

FALSE

⇒ A transistor with a = 0.9 and I

_{CBO}= 10 μA is biased so that I

_{BQ}= 90 μA. Then I

_{CQ}will be

910 mA

5 mA

5.25 mA

4.95 mA

⇒ The depletion layer width of Junction

decreases with light doping

is independent of applied voltage

is increased under reverse bias

increases with heavy doping

⇒ The Boolean function A + BC is reduced form of

AB + BC

AB + ABC

(A + B) (A + C)

(A + C)B

⇒ The amplitude of a pair of composite sinusoidal signal

*y*(

*n*) =

*x*

_{1}(

*n*) +

*x*

_{2}(

*n*) with

*x*

_{1}(

*n*) = sin (5p

*n*)

*x*

_{2}(

*n*) = 3 sin (5p

*n*) is __________ .

2

3

4

1

⇒ If the temperature of on extrinsic semiconductor is increased so that the intrinsic carrier concentration is doubled, then

the majority carrier density doubles

the minority carrier density doubles

the minority carrier density becomes 4 times the original value

both majority and minority carrier densities double

⇒ The symbol in figure is

SUS

SBS

SCS

Shockley diode

⇒ In figure V

_{CE}(sat) = 0.1 V. Then I

_{C}(sa

10 mA

20 mA

30 mA

40 mA

⇒ Consider two random processes

*x(t)*and

*y(t)*have zero mean, and they are individually stationary. The random process is

*z(t)*=

*x(t)*+

*y(t)*. Now when stationary processes are uncorrelated then power spectral density of

*z(t)*is given by

S

*+ S*

_{x}(f)*+ 2S*

_{y}(f)

_{xy}(f)S

*+ S*

_{x}(f)*+ 2S*

_{y}(f)*+ 2S*

_{xy}(f)

_{yx}(f)S

*+ S*

_{x}(f)

_{y}(f)S

*+ S*

_{x}(f)*- 2S*

_{y}(f)*- 2S*

_{xy}(f)

_{yx}(f)⇒ The resolution of a 12-bit D/A converter using a binary ladder with + 10V as the full scale output will be

2.44 mV

3.50 mV

4.32 mV

5.12 mV

⇒ For most static RAM the maximum access time is about

1

*ns*

10

*ns*

100

*ns*

1 μ

*s*

⇒ In figure,

*i*(

*t*) is a unit step current. The steady state value of

*v*(

*t*

2 V

3 V

6 V

9 V

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

saturated

amplifier

unsaturated

any of the above

⇒ If temperature is increased, the temperature coefficient of a metal

increases

decreases

may increase or decrease

remains constant

⇒ To turn off an SCR, it is necessary to reduce its current to less than :

trigger current

holding current

breakover current

none of the above

⇒ A signal is sampled at 8 kHz and is quantized using 8 bit uniform quantizer. Assuming SNR

_{q}for a sinusoidal signal, the correct statement for PCM signal with a bit rate of

*R*is

R = 32 KbPs, SNR

_{q}= 25.8 dB

R = 64 KbPs, SNR

_{q}= 49.8 dB

R = 64 KbPs, SNR

_{q}= 58.8 dB

R = 32 KbPs, SNR

_{q}= 49.8 dB

⇒ In most transistor the collector region is made physically larger than the emitter region

for dissipating heat

to distinguish it from other regions

as it is sensitive to ultraviolet rays

to reduce resistance in the path of flow of electrons

⇒ Hydrogen is used in

large size transformers

MCB

large size generators

circuit breakers

⇒ RF amplifiers are used in radio receivers for

improved image frequency rejection

improved rejection of adjacent unwanted signals

prevention of re-radiation of the local oscillator through the antenna of the receiver

all of the above

⇒ The distance between target and radar is reduced to half. Power received increases by

42751

42739

4 times

16 times

⇒ If the transmission parameters of the given networks are A = C = 1, B = 2 and D = 3, then the value of Z

_{m12/13 Ω13/12 Ω3 Ω4 Ω}

⇒ A computer program is used to read N and compute N !. IF N = 6, the result will be

6

12

720

1040

⇒ A peak responding ac voltmeter using a half wave rectifier has been calibrated to read 1 V for 1 V rms sine wave input. If input is 1 V dc the reading will be

0.707 V

0.707 or 0 V

1.414 V

1.414 or 0 V

⇒ For wired AND connection we should use

TTL gates with active pull up

TTL gates with open collector

TTL gates without active pull up and with open collector

any of the above

⇒ The trapezoidal pattern of figure is obtained when examining an AM wave by an oscilloscope. Modulation factor of the wave

0.33

0.5

2

1