# A system has the following transfer function:The type and order of the system are respectively

1.   4 and 9

2.  4 and 7

3.  5 and 7

4.   7 and 5

4
Correct Answer :

7 and 5

Explanation :
No Explanation available for this question

# A half wave dipole has maximum response in

1.  Broadcast direction

2.  Off the ends

3.  Both (a) and (b) above

4.  None of the above

4
Correct Answer :

None of the above

Explanation :
No Explanation available for this question

# The power gain of a half-wave dipole with respect to an isotropic radiator is

1.  2.15 dB

2.  3 dB

3.  4.15 dB

4.  6 dB

4
Correct Answer :

2.15 dB

Explanation :
No Explanation available for this question

# The open-loop transfer function of a unity- feedback control system is The closed-loop system will be stable if the value of K is

1.   2

2.  3

3.  4

4.  5

4
Correct Answer :

5

Explanation :
No Explanation available for this question

# A unipole is also known as

1.  Omnidirectional radiator

2.  Unidirectional radiator

3.   Line radiator

4.  None of these

4
Correct Answer :

Omnidirectional radiator

Explanation :
No Explanation available for this question

# The absorption of radio waves by the atmosphere depends as

1.  The polarization of the waves

2.   The polarization of the atmosphere

3.  Frequency of the waves

4.  Their distance from the transmitter

4
Correct Answer :

Frequency of the waves

Explanation :
No Explanation available for this question

# Length of aantenna (in feet) is equal to

1.

2.

3.

4.

4
Correct Answer :

Explanation :
No Explanation available for this question

# The state and output equations of a system are as under Equation :The system is

1.   Neither state controllable nor output controllable

2.  State controllable but not output controllable

3.  Output controllable but not state controllable

4.   Both state controllable and output controllable

4
Correct Answer :

Output controllable but not state controllable

Explanation :
No Explanation available for this question

# If the diameter of the parabolic reflector of a microwave antenna is doubled, its gain will increase by

1.  o dB

2.  6 dB

3.  3 dB

4.  none of these

4
Correct Answer :

6 dB

Explanation :
No Explanation available for this question

# An antenna is cut for a resonant frequency of 10MHz, if the antenna can handle a bandwidth of 5 MHz, its quality factor is

1.  10

2.  5

3.  3

4.  2

4
Correct Answer :

2

Explanation :
No Explanation available for this question

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