CS/B.TECH/(ECE-New)/SEM-7/EC-703A/2013-14
2013
RF & MICROWAVE ENGINEERING
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
(Multiple Choice Type Question)
1. Choose the correct alternatives for any ten of the following:
10 x 1 = 10
i) The main advantage of microwave is that it
a) is highly directive
b) moves at the speed of light
c) has greater S/N ratio
d) has higher penetration power.
ii) Klystron operates on the principle of
a) amplitude modulation
b) frequency modulation
c) pulse modulation
d) velocity modulation
iii) In a waveguide the dominant mode is
a) lowest cut-off frequency
b) lowest cut-off wavelength
c) highest cut-off frequency
d) none of these.
