Explore topic-wise MCQs in Engineering.

Match the following:

Match the following:

To multiply a number by 8 in 8085 we have to use RAL instruction

IC (instruction cycle), FC (fetch cycle) and EC (executive cycle) are related as

When .4546 E 5 and .5433 E 7 are to be added in normalized floating point mode

Match the following:

Match the following:

During processing the instructions, data, intermediate results and final results in a computer are held in

The reflection coefficient on a line is 0.2 45 . The SWR is

The velocity factor of a transmission line depends on

A loss less line of characteristic impedance Z₀ is terminated in pure reactance of -jZ₀ value. VSWR is

In a klystron amplifier the input cavity is called

Match the following:

Match the following:

Match the following:

MICR stands for

8085 has 6 sign flags.

JCOKE = 3
JCOKE = JCOKE + 1
GO TO (5, 8, 9, 11, 15, 16 18, 20) JCOKE.

After the execution of above statement, the control is transferred to statement number

As the frequency increases, the absorption of ground wave by earth's surface

Binary number 1101.101 is equivalent to decimal number?

The velocity of sound waves in air

Consider the following statements

1. The amplitude of an FM wave is constant
2. FM is more immune to noise than AM
3. FM broadcasts operate in upper VHF and UHF frequency ranges
4. FM transmitting and receiving equipments are simpler as compared to AM transmitting and receiving equipments

In a fascimile reproduction time to scan one line is 2 ms. If it has 4% blanking, the visible trace time is

The range of a cordless telephone is about

An earth mat for a communication tower consists of

Degaussing in a picture tube means

It is desired that transmission line and load should match for a range of frequencies. The best method is

Which of the following has the highest input impedance?

Signal to noise ratio of microphone is defined as the ratio of output when the sound pressure is __________ to the output in the absence of any sound signal.

Oscillator crystal is made of

Which of the following is not considered as a useful quantity in comparing noise performance of receivers?

In a cellular communication system, path loss between transmitter and receiver is due to

For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as

In TV systems, equalising pulses are sent during

A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is

A tape recorder and deck are entirely similar.

Assertion (A): SSB systems generally have duplex operation

Reason (R): SSB systems are generally used in two way communication.

The characteristic impedance of a twin wire feeder used for TV signals is about

The main function of a balanced modulator is to

In a FM receiver, amplitude limiter

The maximum power output of a standard A earth station over the total band allocated to satellite communication is about

A buffer amplifier is

Leak type bias is used in plate modulated class C amplifier to

The direction of rotation of a CD is

Skip distance depends on time of day and angle of incidence.

In practical commercial FM system, channel bandwidth is

In EM waves, polarization

PAM stands for

In case of low level amplitude modulation system, the amplifiers following the modulated stage must be

An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 10⁶ Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are