Communication System Test

Result

Communication System Test - 8

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Weekly Quiz Competition

Question 1
4 / -1

The transmission of high frequencies in a coaxial cable is determined by

A

B
(LC)²

C
the impedance L alone

D
the dielectric and skin effect
Question 2
4 / -1

A double star system consists of two stars A and B which have time period T_A and T_B . Radius R_A and R_B and mass M_A and M_B . Choose the correct option.

A
If T_A > T_B, then R_A > R_B

B
If T_A > T_B, then M_A > M_B

C

D
T_A = T_B
Question 3
4 / -1

Type of communication Possible by Modem duplex is …………………

A
Half duplex

B
Simplex

C
Doudle Duplex

D
Full duplex
Question 4
4 / -1

To transmit 1 Kh_z frequency signal, wave length of the signal should be ___________m.

A

B

C

D
Question 5
4 / -1

What should be the minimum length of the antenna capable of emitting audio signal of wave length λ ?

A

B

C

D
Question 6
4 / -1

___________is used as a medium an space communication

A
Two wire line

B
Space

C
Amplifier

D
Oplical fibre
Question 7
4 / -1

The band width of Audio signal is

A

B

C

D
Question 8
4 / -1

Ground waves are polarised at ___________direction.

A
Vertcally upward

B
Horizontal

C
Tangential direction to the sarface of the earth

D
In all four
Question 9
4 / -1

Intensity of electric field of ground waves is in ____________of the distance travelled by it.

A
Square

B
Inverse of root

C
Proportion

D
Inverse
Question 10
4 / -1

In radio and television broadcast, the information signal is in the form of

A
Analog signal

B
Digital signal

C
Both analog and digital signals

D
Neither analog nor digital signal