Analytical Instrumentation Mcqs

Q:

The switching of MOS gates can be improved by using CMOS.

A) True B) False
 
Answer & Explanation Answer: A) True

Explanation: The switching of MOS gates can be improved by using CMOS. CMOS stands for complementary MOS. It is an inverter.

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17
Q:

CMOS gates are commercially available as which of the following series?

A) 1000 B) 2000
C) 3000 D) 4000
 
Answer & Explanation Answer: D) 4000

Explanation: CMOS gates are commercially available as 4000 series. This technique is most suitable for commercial circuits.

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46
Q:

Which of the following is not the advantage of MOS gates?

A) Low power dissipation B) Small size
C) Good immunity to noise D) High switching speeds
 
Answer & Explanation Answer: D) High switching speeds

Explanation: MOS gates do not have a high switching speed. They have limited switching capability.

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207
Q:

ECL is a way of achieving a higher speed of gate.

A) True B) False
 
Answer & Explanation Answer: A) True

Explanation: We can achieve a high speed of gate by sing ECL. ECL stands for emitter-coupled logic.

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23
Q:

The logic ‘0’ of ECL is represented as ______V and logic ‘1’ is represented as ______V.

A) 1, 1.65 B) 0.9, 1.75
C) 1.2, 2.35 D) 1.9, 4.3
 
Answer & Explanation Answer: B) 0.9, 1.75

Explanation: The logic ‘0’ of ECL is represented as 0.9 V and logic ‘1’ is represented as 1.75 V. ECL stands for emitter-coupled logic.

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40
Q:

Schottky TTL logic family does not have which of the following features?

A) Good fan-in B) Good fan-out
C) High speed capability D) High propagation delay
 
Answer & Explanation Answer: D) High propagation delay

Explanation: Schottky TTL circuits have reduced propagation delay than normal TTL circuits. The propagation delay of 10ns is very high for some applications.

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130
Q:

The standard TTL gates are marketed as _______ series.

A) 80 B) 82
C) 74 D) 08
 
Answer & Explanation Answer: C) 74

Explanation: The standard TTL gates are marketed as 74 series. They can operate up to 70⁰C.

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31
Q:

Which of the following is the propagation delay of TTL circuits?

A) 1 s B) 1 ms
C) 1 ns D) 1 ps
 
Answer & Explanation Answer: C) 1 ns

Explanation: The propagation delay of the TTL circuit is 1 ns. It is the main characteristic of the TTL circuit.

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