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Q1. | ARQ stands for |

A. | Automatic Repeat Quest [Wrong Answer] |

B. | Analog Repeat Request [Wrong Answer] |

C. | Automatic Repeat Request [Correct Answer] |

D. | None Of the above [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 :**

⇒ If sound intensity is 8 W/m

^{2}, the dB level of this sound is about

5 dB

50 dB

129 dB

1290 dB

⇒ The function A

*e*where

^{st}*s*= s +

*j*ω represents

A phasor whose magnitude changes with time

A phasor whose frequency is ω

A phasor rotating in counterclockwise direction at angular frequency ω and whose magnitude increases with

*t*

A phasor rotating in clockwise direction at angular frequency ω and whose magnitude increases with

*t*

⇒ In figure, the effective capacitance between A and

2 μF

4 μF

8 μF

10 μF

⇒ An AND gate has four inputs. One of the inputs is low and other inputs are high. The output

is low

is high

is alternately low and high

may be high or low depending on relative magnitudes of inputs

⇒ The units of transistor

*h*parameters

*h*

_{11}and

*h*

_{22}are the same.

TRUE

FALSE

⇒ In orthogonal BFSK, the energy of information bearing term is

the same as total transmitted energy

one-half of total transmitted energy

one-fourth of total transmitted energy

none of the above

⇒ In a discharging R-L circuit voltage across the resistor exhibits

a linear rise

a linear decay

an exponential growth function

an exponential decay function

⇒ At a particular time it is observed that the frequencies of F layer at Delhi is 3 MHz the maximum electron density is

11 x 10

^{10}

1.1 x 10

^{10}

0.11 x 10

^{10}

11 x 10

^{12}

⇒ A transmission line has a characteristic impedance of 50 Ω and a resistance of 0.1 Ω/m, if the line is distortion less, the attenuation constant (in Np/m) is

500

5

0.014

0.002

⇒ The network has 10 nodes and 17 branches. The number of different node power voltages would be

7

9

10

45

⇒ A compiler converts a high level computer program into machine language program.

TRUE

FALSE

⇒ In a network with twelve circuit elements and five nodes, what is the minimum number of mesh equations?

24

12

10

8

⇒ One of the advantages of base modulation over collector modulation in a class C transistor amplifier is

higher efficiency

more linear operation

more power output per transistor

lesser requirement of modulating power

⇒

Match the following:

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

A. | Darlington amplifier | 1. | A circuit using pnp and npn transistors |

B. | CB amplifier | 2. | A CS amplifier driving a CG amplifier |

C. | Cascade amplifier | 3. | A circuit with over-all voltage gain close to 1 and very large input impedance |

D. | Complementary symmetry amplifier | 4. | A circuit with low input impedance |

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

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

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

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

⇒ Which of the following is taken as reference antenna for directive gain?

Half wave dipole

Elementary doublet

Isotropic

Infinitesimal dipole

⇒ Consider the following

- A signal
*f*(*t*) and its Hilbert transform*f*(_{h}*t*) have the same energy density spectrum - A signal
*f*(*t*) and its Hilbert transform,*f*(_{h}*t*) have the same auto correlation function - A signal
*f*(*t*) and its Hilbert transform are mutually orthogonal

1, 2 and 3

1 and 2 only

1 only

2 and 3 only

⇒ The magnitude of transport lag factor is always zero.

TRUE

FALSE

⇒ Both X and Y plates of a CRO are excited by ac signals. The display is an ellipse which makes one rotation in 5 seconds. This means that

the frequency of one input is 5 times that of other

the difference between the frequencies of the two signals is one fifth of hertz

the difference between the frequencies of the two signals is 5 Hz

either (a) or (c)

⇒ If a RAM has 34 bits in its MAR and 16 bits its MAR, then its capacity will be

32 GB

16 GB

32 MB

16 MB

⇒ What would be the reading of voltmeter as shown in below figure. The voltmeter has a 0-1 V scale and is a 20000 Ω/V me

0.4545 V

0.082 V

0.82 V

4.54 V

⇒ A 400 W carrier is modulated to a depth of 75 percent. The total power in modulated wave will be

38.5 W

400 W

512.5 W

615.5 W

⇒ The characteristic equation of a feedback control system is given by

*s*

^{3}+ 5

*s*

^{2}+ (K + 6)

*s*+ K

(- 3, 0)

(- 2, 0)

(- 1, 0)

(2, 0)

⇒ The resistance of resistance strain gauge is about

5 Ω

50 Ω

120 Ω

0.5 Ω

⇒ A second-order band-pass active filter can be obtained by cascading a low pass second order section having cut off frequency

*f*

_{OH}with a high pass second order section having cut-off frequency

*f*

_{OL}provided

*f*

_{OH}>

*f*

_{OL}

*f*

_{OH}<

*f*

_{OL}

*f*

_{OH}=

*f*

_{OL}

*f*

_{OH}≤ 1/2

*f*

_{OL}

⇒ In which one of the following types of analog to digital converts the conversion time is practically independent of the amplitude of the analog signal?

The dual slope integrating type

Successive approximation type

Counter ramp type

Tracking type

⇒ An antenna array pattern is to used for increasing

gain

directivity

directive gain

all

⇒ Consider an incremental vector element of length ΔL and angle between an electric field E and ΔL s cos &the

In the direction of E

In opposite direction of E

In the angle of 45° with E

In the angle of 60° with E

⇒ If R, L, C are in parallel, the currents through L and C are equal in magnitude at resonance.

TRUE

FALSE

⇒ If

*f*(

*t*) is an odd func

TRUE

FALSE

⇒ To measure an unknown ac voltage by an ac potentiometer it is desirable that supply for the potentiometer is taken

from a battery

from a source which is not the same as unknown voltage

from the same source as the unknown voltage

either (a) or (b)