# Free space loss - Mobile Radio Propagation - MCQs with answers

## Free space loss - Mobile Radio Propagation - MCQs with answers

Q1. Friis free space equation

1. Is an expression for noise power
2. Is a function of transmitting and receiving antenna gain
3. Depends upon the distance between transmitting and receiving antenna

a. 1) and 2) are correct
b. All the three are correct
c. 1) and 3) are correct
d. 2) and 3) are correct.

ANSWER: d. 2) and 3) are correct.

Q2. The free space model of propagation refers to

1. Unobstructed line of sight between the transmitter and receiver
3. Propagation along the ground surface

a. 1) and 2) are correct
b. All the three are correct
c. 1) and 3) are correct
d. 2) and 3) are correct.

ANSWER: a. 1) and 2) are correct

Q3. According to Friis free space equation

1. Received power falls with square of the distance between the transmitter and receiver
2. Increases with square of the distance between the transmitter and receiver
3. Received power increases with gains of transmitting and receiving antennas

a. 1) and 2) are correct
b. All the three are correct
c. 1) and 3) are correct
d. 2) and 3) are correct.

ANSWER: b. All the three are correct

Q4. EIRP is

2. Maximum radiated power available by the transmitter
3. A factor of power and gain of transmitter

a. 1) and 2) are correct
b. All the three are correct
c. 1) and 3) are correct
d. 2) and 3) are correct.