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April 2021

An emitter-follower amplifier has an input impedance of 107 kΩ. The input signal is 12 mV. The approximate output voltage is (common-collector)

Question:

An emitter-follower amplifier has an input impedance of 107 kΩ. The input signal is 12 mV. The approximate output voltage is (common-collector)

A.

8.92 v

B.

112 mv

C.

12 mv

D.

8.9 mv

Answer» c. 12 mv

Note: The above multiple-choice question is for all general and Competitive Exams in India

An emitter-follower amplifier has an input impedance of 107 kΩ. The input signal is 12 mV. The approximate output voltage is (common-collector) Read More »

» Electronic Devices and Circuits solved MCQs

Machining conditions leading to high accuracy are associated with                  surface roughness and                  productivity.

Question:

Machining conditions leading to high accuracy are associated with                  surface roughness and                  productivity.

A.

greater, greater

B.

smaller, greater

C.

greater, smaller

D.

smaller, smaller

Answer» b. smaller, greater

Note: The above multiple-choice question is for all general and Competitive Exams in India

Machining conditions leading to high accuracy are associated with                  surface roughness and                  productivity. Read More »

» Unconventional Machine Process (UMP) solved MCQs

0.0.0 router IGRP 109 network 172.68.7.0

Question:

0.0.0 router IGRP 109 network 172.68.7.0

A.

it isolates networks 10.0.0.0 and 172.68.7.0

B.

it loads igrp for networks 109 and 71

C.

it disables rip

D.

it disables all routing protocols

Answer» a. it isolates networks 10.0.0.0 and 172.68.7.0

Note: The above multiple-choice question is for all general and Competitive Exams in India

0.0.0 router IGRP 109 network 172.68.7.0 Read More »

» Computer Networks solved MCQs

Astern turbines are used in                    

Question:

Astern turbines are used in                    

A.

power generation

B.

marine purposes

C.

aircraft

D.

none of the mentioned

Answer» b. marine purposes

Note: The above multiple-choice question is for all general and Competitive Exams in India

Astern turbines are used in                     Read More »

» Thermal Engineering 2 solved MCQs

Choose the proper disadvantage of solid fuels out of the given option?

Question:

Choose the proper disadvantage of solid fuels out of the given option?

A.

they produce lot of smoke

B.

they have low ignition temperature

C.

they are high in production cost

D.

they cannot be easily transported

Answer» a. they produce lot of smoke

Note: The above multiple-choice question is for all general and Competitive Exams in India

Choose the proper disadvantage of solid fuels out of the given option? Read More »

» Thermal Engineering 2 solved MCQs

Animal muscles have water as the majority of the content but the aim of humans is to extract the protein out of it and consume it.

Question:

Animal muscles have water as the majority of the content but the aim of humans is to extract the protein out of it and consume it.

A.

true

B.

false

Answer» a. true

Note: The above multiple-choice question is for all general and Competitive Exams in India

Animal muscles have water as the majority of the content but the aim of humans is to extract the protein out of it and consume it. Read More »

» Principles of Food Preservation solved MCQs

You have a need to apply an amplifier with a very high power gain. Which of the following would you choose?

Question:

You have a need to apply an amplifier with a very high power gain. Which of the following would you choose?

A.

common-collector

B.

common-base

C.

common-emitter

D.

emitter- follower

Answer» c. common-emitter

Note: The above multiple-choice question is for all general and Competitive Exams in India

You have a need to apply an amplifier with a very high power gain. Which of the following would you choose? Read More »

» Electronic Devices and Circuits solved MCQs

Which of the following is recommended in a refrigeration cycle?

Question:

Which of the following is recommended in a refrigeration cycle?

A.

superheating of vapour

B.

subcooling of liquid

C.

both of the mentioned

D.

none of the mentioned

Answer» c. both of the mentioned

Note: The above multiple-choice question is for all general and Competitive Exams in India

Which of the following is recommended in a refrigeration cycle? Read More »

» Thermal Engineering 2 solved MCQs

Planet Mercury Quiz – The innermost and smallest planet in the Solar System

Mercury Quiz Questions

1) Who is Mercury in mythology?
a) God of justice
b) God of war
c) God of wind
d) God of commerce (Correct)

2) What is the minimum surface temperature of Mercury?
a) 72?C
b) 0?C
c) -10?C
d) -173?C (Correct)

3) What is the maximum surface temperature of Mercury?
a) 122?C
b) 427?C (Correct)
c) 285?C
d) 576?C

4) What is the tilt of axis (degrees) of Mercury?
a) One
b) Two
c) Zero (Correct)
d) Three

5) Which spacecraft first visited Mercury?
a) Pioneer 4
b) Mariner 8
c) Ulysses
d) Mariner 10 (Correct)

6) Which theory correctly predicted the motions of Mercury?
a) Gravitational Theory
b) General Theory of Relativity (Correct)
c) Theory of Evolution
d) Heliocentric Theory

English: Mercury 10 diagram of Mercury 3 Encou...
English: Mercury 10 diagram of Mercury 3 Encounter. (Photo credit: Wikipedia)

7) Who determined that Mercury must be tidally locked to the Sun? (This was proved wrong later on.)
a) John Dyce
b) Albert Goldstein
c) Giovanni Schiaparelli (Correct)
d) James Pettengill

8) Who of the following believed that Mercury orbited the Sun?
a) Aristotle
b) Heraclitus (Correct)
c) Plato
d) Socrates

9) What is Mercury’ rotation period around axis?
a) 31.25 days
b) 44.75 days
c) 58.65 days (Correct)
d) 71.29 days

10) What is the length of a year of Mercury?
a) 92.245 days
b) 87.969 days (Correct)
c) 47.701 days
d) 164.321 days

Planet Mercury Quiz – The innermost and smallest planet in the Solar System Read More »

MCQs / Q&A