Results
Q1. A ground radar transmitting at a PRF of 1200 pulses/second will have a maximum unambiguous range of approximately:
67 NM
Q2. The maximum pulse repetition frequency (PRF) that can be used by a primary radar facility in order to detect targets unambiguously at a range of 50 NM is: (pps = pulses per second)
1620 pps
Q3. Complete the following statement. Aircraft Surface movement Radar operates on frequencies in the (i) ………. band employing an antenna that rotates at approximately (ii) ………. revolutions per minute; it is (iii) ………. possible to determine the type of aircraft from the return on the radar screen.
(i) SHF (ii) 60 (iii) sometimes
Q4. The maximum range obtainable from an ATC Long Range Surveillance Radar is approximately:
300 NM
Q5. A radar used by ATC has the following characteristics: Long wavelength, aerial rotation speed 5 RPM. Most likely this is
An en route surveillance radar
Q6. Which combination of characteristics gives best screen picture in a primary search radar?
short pulse length and narrow beam
Q7. A radar facility transmitting at a Pulse Recurrence Frequency (PRF) of 1200 pulses/second will have a maximum unambiguous range of approximately:
69 NM
Q8. A simple schematic diagram of a typical primary radar set, will show that
The Display unit is fed information from the receiver and the timebase generator
Q9. Assuming sufficient transmission power, the maximum range of a ground radar with a pulse repetition frequency of 450 pulses per second is: (Given: velocity of light is 300 000 km/second)
333 km
Q10. Ignoring pulse length and fly-back, a radar facility designed to have a maximum unambiguous range of 50 km will have a PRF (pulses per second) of:
3000
Q11. A Surveillance Radar installation will often consist of
A Primary radar and a Secondary Surveillance Radar (SSR)
Q12. Two types of radar approaches may be available
Surveillance approach and Precision approach
Q13. A long-range surveillance radar will typically use a frequency of
1000 MHz
