Subject Repository
Electrical Engineering Mcqs
Showing 1201 – 1220 of 3,699 verified multiple choice questions with answers and explanations.
Q1201NTS / FPSC / PPSC
If a radio receiver amplifies all the signal frequencies equally well, it is said to have high ________________?
Q1203NTS / FPSC / PPSC
In superhetrodyne receiver, the input at mixer stage is________________?
Q1204NTS / FPSC / PPSC
When the modulating signal controls the frequency of the carrier, we get______________?
Q1205NTS / FPSC / PPSC
The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________?
Q1206NTS / FPSC / PPSC
The function of ferrite antenna is to_________________?
Q1207NTS / FPSC / PPSC
A 100 V carrier is made to vary between 160 V and 40 V by the signal. What is the modulation factor ?
Q1208NTS / FPSC / PPSC
If Amin = 40 and Amax = 60, what is the percentage of modulation?
Q1209NTS / FPSC / PPSC
In a radio receiver, we generally use ………….. oscillator as a local oscillator
Q1210NTS / FPSC / PPSC
A 50 kW carrier is to be amplitude modulated to a level of 85%. What is the carrier power after modulation ?
Q1211NTS / FPSC / PPSC
As the modulation level is increased, the carrier power__________________?
Q1212NTS / FPSC / PPSC
A high Q tuned circuit will permit an amplifier to have high __________________?
Q1214NTS / FPSC / PPSC
If level of modulation is increased ______________ power is increased?
Q1216NTS / FPSC / PPSC
In radio transmission, the medium of transmission is ________________?
Q1217NTS / FPSC / PPSC
In TV transmission, picture signal is ______________ modulated?
Q1218NTS / FPSC / PPSC