21) A circuit which resonates at MHz has a Q of 100. Bandwidth between half-power points is
a) 10 kHz
b) 100 kHz
c) 10 Hz
d) 100Hz
22) Which of the following pulse modulations is analog ?
a) PCM
b) Differential PCM
c) PWM
d) Delta
23) Random satellite moves in
a) random paths
b) polar orbits
c) geostationary orbits
d) equatorial plane
24) An altimeter is basically
a) a CW radar
b) a FM radar
c) a Doppler radar
d) a device to indicate the direction at height
Good Luck!!