A 'skip zone' is:
1. the distance between the antenna and where the refracted wave first returns to earth
2. the distance between the far end of the ground wave and where the refracted wave first returns to earth
3. the distance between any two refracted waves
4. a zone caused by lost sky waves
The medium which reflects high frequency radio waves back to the earth's surface is called the:
1. biosphere
2. stratosphere
3. ionosphere
4. troposphere
The highest frequency that will be reflected back to the earth at any given time is known as the:
1. UHF
2. MUF
3. OWF
4. LUF Continue reading Mcqs in Wave propagation →

MCQs in Radio Engineering Part -1

MCQs in Radio Engineering (Electronics and Communication Engineering) Test Paper

Choose the correct answer

1. Output power of 10 kW FM transmitter modulated with 1 Khz sinusoidal tone with deviation of + 75 kHz shall be

2. Adaptive pre-emphasis in FM limiter is

3. The feeder used to connect the FM Transmitter to the antenna is

Broadcast Engineering Short Answers 1

Electronics and Communication Engineering Short answers

(Broadcast Engineering)

The repealer electrode in a reflex is at potential.
The junction capacitance of a diode is made up of a
The ripple frequency of a 50 Hz, 3 phase full wave rectifier is Hz.
Main advantage of grounded grid amplifier is
In a push pull amplifier harmonic are absent.
If two amplifiers of gain 10 are cascaded, the overall gain will be
A rejector circuit offers reactance above resonance.
The filter used in the first stage of AF chain is usually pass.
The crystal of an oscillator is placed in order to
In a 10KW transmitter if the modulation index is 0.5, the total side band power is
The detector used in an FM receiver is
The digital gate used for the logic "This or that but not both" is
ROM is a memory in terms of relativity.
A negative logic means
If a 20 kHz audio is to be sampled in A/D convertor, the minimum sampling frequency shall be for faith full reproduction.
The most common modulation scheme used in a digital satellite communication system is
In a computer hardware BIOS stands for
A spectrum analyzer is a domain equipment.
A geo-stationary orbit is approximately at km height.