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ISRO EC 2019: Microwave Engineering Booster Quiz 3
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Question 1
For a parabolic reflector of 5 metre diameter, the far field pattern measurement at 6 GHz should be carried out a distance of at least
Question 2
Two microwave signals, travelling in the free space have a path length difference of 3 cm when operating at 10 GHz. what is the relative phase difference of the signals?
Question 3
By measuring the VSWR values in the main and auxiliary waveguides of a directional coupler, we can determin its.
Question 4
Magnetic properties of ferrites result mainly from
Question 5
The directivity of a prime-focal parabolic reflector antenna is 30 dBi. If the efficiency of the antenna is 30 dBi. If the efficiency of the antenna is 50%, the gain of the antenna.
Question 6
A pyramidal horn antenna is best suited to be excited from a
Question 7
Which of the following uses ‘transferred electron effect’ for production of micro- waves?
Question 8
In a specimen of ferromagnetic material with saturation magnetization as 8000 Gauss, as the flux density is increased from 0 to 2.5 T, 
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will Question 9
Which vacuum based device is widely used as a power amplifier in satellite communication systems?
Question 10
In a waveguide network, these is a component which consists of an E-plane Tee combined with an H-plane Tee. What is this component generally known as?
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Jan 1ESE & GATE EC
