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Q:

In a bipolar junction transistor

A) all the three regions (the emitter, the base and the collector) have equal concentrations of impurity B) the emitter has the least concentration of impurity
C) the collector has the least concentration of impurity D) the base has the least concentration of impurity
 
Answer & Explanation Answer: D) the base has the least concentration of impurity

Explanation:

In terms of concentration of impurity (a.k.a impurity doping concentration, often abbreviated to doping concentration), from the highest to the lowest among the three regions of a bipolar junction, emitter, collector, and base are the correct order. The above order is independent of the type of BJT, npn or pnp

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Filed Under: Physics
Exam Prep: Bank Exams

1 2021
Q:

Filament of electric bulb is made of _____.

A) Magnesium B) Lead
C) Tin D) Tungsten
 
Answer & Explanation Answer: D) Tungsten

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

1 2021
Q:

A large underground economy results in an

A) Overstated GDP B) Understated GDP price index
C) Overstated GDP price index D) Understated GDP
 
Answer & Explanation Answer: D) Understated GDP

Explanation:
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Filed Under: Indian Economy
Exam Prep: AIEEE , Bank Exams , CAT
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2 2021
Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best express the same sentence in Indirect/Direct speech.

Vicky said, "I clean my teeth daily."

A) Vicky said he cleans his teeth daily. B) Vicky says he cleans his teeth daily.
C) Vicky said that he cleaned his teeth daily. D) Vicky said that he used to clean his teeth daily.
 
Answer & Explanation Answer: C) Vicky said that he cleaned his teeth daily.

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

1 2021
Q:

Weight of a person at a height of 2R from the centre of the earth, where R is the radius of the earth _______.

A) remains same B) becomes half
C) becomes twice D) becomes one­-fourth
 
Answer & Explanation Answer: D) becomes one­-fourth

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

6 2020
Q:

Which gases in the atmosphere absorb ultraviolet radiation?

A) Ozone B) Carbondi oxide
C) Oxygen D) Helium
 
Answer & Explanation Answer: A) Ozone

Explanation:

The ozone gas present in the atmosphere absorb ultraviolet radiation. It is spread as a ozone layer throughout the stratosphere.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

4 2020
Q:

Enumerators are stored by the compiler in

A) integer B) string
C) float D) any of above
 
Answer & Explanation Answer: A) integer

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

3 2020
Q:

Which country shares the longest border with China?

A) India B) Russia
C) Mongolia D) Kazakhstan
 
Answer & Explanation Answer: C) Mongolia

Explanation:

China shares land borders with 14 different countries, the longest being with Mongolia followed by Russia and then India.

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Filed Under: World Geography
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

2 2020