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Microwave Engineering C sec

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

The frequency of microwave signals range from

a)

1 GHz to 300 GHz

b)

100 GHz to 300 GHz

c)

1 GHz to 100 GHz

2.

Microwaves are attracted to

a)

sugar

b)

fat

c)

water

d)

all of the answers

3.

Microwaves acquire the name because their wavelengths are in range of micrometers

a)

True

b)

False

4.

The waveguide tee in which the axis of the side arm is shunting the E field of the main waveguide

a)

E plane Tee

b)

H plane Tee

5.

Which among these are active microwave devices

a)

Klystron

b)

Attenuator

c)

Coupler

d)

Magnetron

6.

Which among these are active microwave devices

a)

Klystron

b)

Attenuator

c)

Coupler

d)

Magnetron

7.

The hollow metallic tube that conducts EM Waves

a)

Klystron Mount

b)

Waveguide

8.

The two parts of a Klystron Power Supply are"

a)

Repeller voltage unit and Beam voltage unit

b)

High voltage unit and Modulation unit

9.

Which active microwave device works on the principle of velocity modulation

a)

Gunn Oscillator

b)

Magnetron

c)

Klystron

10.

PIN modulator is used along with Gunn oscillator to improve:

a)

Voltage

b)

Modulation

11.

Isolator is a non reciprocal transmission device

a)

True

b)

False

12.

Condition for Reciprocal

a)

Z12 = Z21

b)

Z11=Z22

c)

Z11=Z12

d)

Z22=Z21

13.

Matrix to analze the High frequency signals are

a)

Scattering

b)

ABCD

c)

Z

d)

Y

14.

For perfectly Matched Condition Principle Diagonal of Matrices of S parameter is

a)

1

b)

2

c)

3

d)

0

15.

If SiSj*=Si*Sj= ? provided if i =j

a)

1

b)

0

c)

0 or 1

d)

0 and 1