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Q1. | A geosynchronous satellite |

A. | has the same period a that of the Earth [Wrong Answer] |

B. | has a circular orbit [Wrong Answer] |

C. | rotates in the equatorial plane [Wrong Answer] |

D. | has all of the above [Correct Answer] |

View Answer
Explanation:-
Answer : DDiscuss 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 :**

⇒ A carrier wave carries information.

TRUE

FALSE

⇒ An RC oscillator uses

one RC combination

two RC combinations

at least three RC combinations

either (a) or (b)

⇒ When a line short circuited at far end, the minimum voltage occurs at

far end

source end

midway between source and far end

none of the above

⇒ The energy stored in a coil is 108 J. It is opened suddenly in 10 ms. The power dissipated instantaneously across the blades of switch is

108 W

1080 W

10800 W

108000 W

⇒ MF is generally used for

telegraphy

radio and television links

satellite communication

broadcasting, navigation

⇒ Which of the following can be used as a buffer amplifier?

CE

CC

CB

Both (a) and (c)

⇒ In E plane metal plate lens antenna

travelling wavefronts are retarded

travelling wavefront are accelerated

travelling wavefront remains unaffected

none of the above

⇒

Match the following:

List I (Operator) | List II (Description) | ||
---|---|---|---|

A. | & & | 1. | Bitwise inclusive OR |

B. | & | 2. | Bitwise AND |

C. | | | | 3. | Logical AND |

D. | | | 4. | Logical OR |

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

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

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

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

⇒ 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

⇒ How many free electrons does a

*p*type semiconductor has?

only those produced by thermal energy

only those produced by doping

those produced by doping as well as thermal energy

any of the above

⇒ The logic circuit in the given figure realizes the func

(A + B + C) (D E)

(A + B + C) (D E)

(A + B + C) (D E)

(A + B + C) (D E)

⇒ The logic performed by the high-noise immunity logic circuit shown belo

OR

AND

NOR

NAND

⇒ (s

*I*- A)

^{-1}is equal to

*adj*(

*sI*- A)/

*det*(

*sI*- A)

*det*(

*sI*- A)/

*adj*(

*sI*- A )

[

*adj*(

*sI*- A)] [

*det*(

*sI*- A)]

none of the above

⇒ Resonant circuits are used in

audio amplifiers

RF amplifiers

both audio and RF amplifiers

none of the above

⇒ Four memory chips of 16 x 4 size have their address buses connected together. This system will be of size

64 x 4

16 x 16

32 x 8

256 x 1

⇒

Match the following:

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

A. | D Layer | 1. | 110 km |

B. | E layer | 2. | 10 km |

C. | F layer | 3. | 60 km |

D. | Troposphere | 4. | 350 km |

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

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

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

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

⇒ A coil has a resistance of 2 Ω and inductance of 0.1 mH. The applied voltages is suddenly increased from 10 V to 20 V. After steady state condition have reached, the current is

0.0833333333333333

more than 2 A but less than 4 A

0.166666666666667

more than 4 A

⇒ It is required to increase the maximum range of a radar by a factor of two. The peak power transmitted in the radar system has to be increased by a factor of

2

4

8

16

⇒ Which of the following statements is not correct?

Propagation delay is the time required for a gate to change its state

Noise immunity is the amount of noise which can be applied to the input of a gate without causing the gate to change state

Fan-in of a gate is always equal to fan-out of the same gate

Operating speed is the maximum frequency at which digital data can be applied to a gate

⇒ If each frequency component of

*f*(

*t*) is shifted by p/2, the resulting signal is

Hilbert transform of

*f*(

*t*)

Inverse Hilbert transform of

*f*(

*t*)

Laplace transform of

*f*(

*t*)

Fourier transform of

*f*(

*t*)

⇒ In a JFET

drain current is very nearly equal to source current

drain current is much less than source current

drain current may be equal to or less than source current

drain current may be even more than source current

⇒ Dielectric loss due to polarisation occurs in

bipolar dielectrics

non-metallic dielectrics

liquid dielectrics

all of the above

⇒ An ac tachometer has a drag cup construction so that

rotor inertia is low

rotor body is conducting

rotor is easy to fabricate

both (a) and (b)

⇒ For a second order system ω

_{n}is natural frequency, ω

*is frequency of damped oscillations and ζ is damping factor. Then*

_{d}ω

_{d}= ω

_{n}ξ

ω

_{d}= ω

_{n}(1 - ξ)

^{2}

ω

_{d}= ω

_{n}(1 - ξ)

^{0.5}

ω

_{d}= ω

_{n}(1 - ξ

^{2})

^{0.5}

⇒ A dc network has 3 independent nodes and 4 loops. In total analysis, the number of equations is

4

3

2

1

⇒ FSK is a system involving

pulse modulation

frequency modulation

amplitude modulation

phase modulation

⇒ 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)

⇒ An image uses 512 x 512 picture elements. Each element can take any of eight distinguishable levels. The maximum entropy in the above image will be

2097152 bits

786432 bits

648 bits

144 bits

⇒ If the function

*A, B*are A = R + PQ + RS B = PQRS + PQRS + PQRSA = B

A =

*B*

no direct relation between

*A*and

*B*

insufficient data

⇒ In paramagnetic materials

permanent magnetic dipoles exist but the interaction between neighbouring dipoles is negligible

permanent magnetic dipole do not exist

permanent magnetic dipoles exist and the interaction between neighbouring dipoles is very strong

permanent magnetic dipole moment may or may not exist