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. | In a number system with radix r, the decimal value of 110 is equal to 4r. The decimal values of 111 and r respective are equal to |

A. | 20, 5 [Wrong Answer] |

B. | 16, 4 [Wrong Answer] |

C. | 13, 3 [Correct Answer] |

D. | 8, 2 [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss 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 :**

⇒ An

*m*derived and constant

*k*filter section connected in cascade give

proper impedance matching

proper phase shift characteristic

proper attenuation characteristic

all of the above

⇒ The important postulate arising out of Maxwell's modification of Ampere's law is

a changing magnetic field produces an electric field

a changing electric field produces a magnetic field

a motional e.m.f. is produced by a coil moving in a magnetic field

a steady current produce a magnetic field

⇒ A discrete LTI system is non-casual if its impulse response is

*a*

*∪(*

^{n}*n*- 2)

*a*

*∪(*

^{n-2}*n*)

*a*

*∪(*

^{n+2}*n*)

*a*

*∪(*

^{n}*n*+ 2)

⇒ For a 400 kHz transmission line having L = 0.5 mH/km, C = 0.08 mF and negligible R and G, the value of propagation constant P will be

15.9 radians/km

31.8 radians/km

63.6 radians/km

105.4 radians/km

⇒ In a P-N-P transistor, electrons flow

into the transistor at the collector only

into the transistor at the base and the collector leads

out of the transistor at base and collector leads

out of the transistor at base, collector as well as emitter leads

⇒ The Table given below is the mark obtained by 2 students in 8 different subjec

-0.4748

0.4748

-0.0338

0.0338

⇒ In 8085, out of interrupts given below, one particular interrupts is quite different from others, This interrupt is

RST 5.5

RST 6.5

RST 7.5

none of these

⇒ Principle of superposition is applicable to

linear systems only

nonlinear systems only

both linear and non linear system

linear systems and some nonlinear systems

⇒

Match the following:

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

A. | Detection of a periodic signal in noise | 1. | Increase in band-width |

B. | Recovery of a band limited signal from its uniformly sampled values | 2. | Slope over load error |

C. | Finer quantization | 3. | Nyquist rate of signals |

D. | Delta modulation | 4. | Cross correlation |

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

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

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

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

⇒ The following statements are true with respect to "Cascode Amplifier".

- The reduction in
*h*_{12}and Miller capacitance result in negligible reverse internal feedback. - A's is large loads cannot be connected.
- As a narrow band amplifier, it provides small range of
*c*_{μ}is reduced. - As a narrow band amplifier it provides small range of frequencies parameters the effect of
*c*_{μ}reduces.

only 1

only 1 and 4

only 2 and 4

only 1 and 3

⇒ An RLC series circuit has R = 8 Ω, X

_{L}= 8 Ω and X

_{C}= 8 Ω Its impedance is

8 +

*j*16 Ω

8 +

*j*8 Ω

8 Ω

24 Ω

⇒ In admittance parameter set, the dependent variables are the currents at the two ports.

TRUE

FALSE

⇒ What is the necessary a.c. input power from the transformer secondary used in a half wave rectifier to deliver 500 W of d.c. power to the load?

1232 W

848 W

616 W

308 W

⇒ In order to protect a MOSFET against damage from any stray voltage at the gate

grounding rings are provided

terminals are shorted

source terminal is earthed during transit

none of these

⇒ In ferromagnetic materials

the atomic magnetic moments are antiparallel and unequal

the atomic magnetic moments are parallel

the constituent is iron only

one of the constituents is iron

⇒ The advantage of semiconductor strain gauge over resistance strain gauge is

it is more sensitve

it is more linear

it is less temperature dependent

it is cheaper

⇒

Match the following:

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

A. | Ring modulator | 1. | Clock recovery |

B. | VCO | 2. | Demodulation of FM |

C. | Foster Seeley discriminator | 3. | Frequency conversion |

D. | Mixer | 4. | Summing of two points |

5. | Generation of FM | ||

6. | Generation of DSB-SC |

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

A-6, B-5, C-2, D-3

A-6, B-1, C-3, D-2

A-5, B-6, C-1, D-3

⇒ A heavily doped semiconductor exhibits a __________ such a device is called sensistors.

negative temperature coefficient of resistance

positive temperature coefficient of resistance till a particular value of temperature and then it shown negative temperature coefficient of resistance

positive temperature coefficient of resistance

none of the above

⇒ In 8085 microprocessor system, can an input and output port have same port address?

Yes

No

Insufficient data

None of these

⇒ A dielectric material must be

insulator

good conductor

resistor

semiconductor

⇒ A transmission line is feeding 1 watt of power to a horn antenna having a gain of 10 dB. The antenna is matched to the transmission line. The total power radiated by the horn antenna into the free space is

10 watts

1 watt

0.1 watt

0.01 watt

⇒ Which of following digital modulation technique?

ASK

FSK

PSK

All

⇒ Which is not purpose of modulation?

Effective radiation

Multiplexing

Narrow band

Increase in signal power

⇒ Consider the following galvanometers

- D'Arsonval
- Ballistic
- Vibration

1 and 2 only

1, 2 and 3

2 and 3 only

1 and 3 only

⇒ The radix of a hexadecimal system is

2

3

8

16

⇒ In the FM wave described by equation

*v*= 15 sin (4 x 10

^{8}

*t*+ 3 sin 1100

*t*), the carrier frequency and signal frequency respectively are

63.66 MHz and 175 Hz

4 x 10

^{8}Hz and 1100 Hz

175 Hz and 63.66 MHz

1100 Hz and 4 x 10

^{8}Hz

⇒ A rectangular metal waveguide filled with a dielectric of relative permittivity ε

_{r}= 4, has the inside dimensions 3 x 1.2 cm, the cut off frequency for the dominant mode is

2.5 GHz

5 GHz

10 GHz

12.5 GHz

⇒ In the given figure the input frequency

*f*= 0.1 (1/2 p

0 dB

3 dB

-3 dB

20 dB

⇒ Consider the following

line 25

line 35

any of the lines 15 or 25, 35

⇒ In amplitude modulation, carrier signals A cos ω

*t*has its amplitude A modulated in proportion with message bearing (low frequency) signal

*m(t)*. The magnitude of

*m(t)*is chosen to be __________ .

less than 1

less than or equal to 1

more than 1

none of these