A:-Conductor
B:-Insulator
C:-Semiconductor
D:-Super conductor
Correct Answer:- Option-B
Question47:-Which of the following solid state device is fastest
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B:-IGBT
C:-MOSFET
D:-SCR
Correct Answer:- Option-C
Question48:-Which of the following is not true in companding
A:-Compressing the signal before input to an Analog to digital converter
B:-Which expanding the signal after a Digital to analog converter
C:-It increases the signal to noise ratio (SNR) at meduced bit rates
D:-Higher SnR can be achieved by uniform quantization rather than non uniform
Correct Answer:- Option-D
Question49:-What is the effective band width of a two stage cascaded amplifier each having a band width of one mega
hertz(1MHz)
A:-640KHz
B:-1640KHz
C:-885KHz
D:-500KHz
Correct Answer:- Option-A
Question50:-What is the maximum allowable tracking error frequency in amplitude modulation
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B:-+/- 2KHz
Ci-+/-3 KHz
D:-+/-5KHz
Correct Answer:- Option-C
Question51:-The 78XX series regulator Ics are commonly found in the through hole package of
A:-TO 92
B:-TO 220
C:-T018
D:-TO 206A
Correct Answer:- Option-B
Question52:-The decimal number 16 is equivalent to the hexadecimal
A:-11H
B:-10H
C:-AOH
D:-01H
Correct Answer:- Option-B
Question53:-PWM can be generated by
A:-Astable multivibrator
B:-Bistable multivibrator
C:-Monostable multivibrator
D:-Schmitt trigger
Correct Answer:- Option-C
Question54:-During the counting because of noise spikes, the counter may goes to some unused state and the subsequent
clock pulses may causes the counter to move from one unused state to another unused state is known as
A:-Lockout
B:-Fly Wheel
C:-Corona
D:-Moore
Correct Answer:- Option-A
Question55:-Which colour LEDs has the highest forward voltage drop generally
A:-Red
B:-Blue
C:-Green