Q:

What is the simplified value of (cosec A + sin A)(cosec A – sin A)?

A) cos2A + cot2A	B) 2 cos2A
C) 2 cot2A	D) 2 cos A cot A

Answer & Explanation Answer: A) cos2A + cot2A

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 1253

Q:

Which one of the following statements is correct?

A) The oxidation number for hydrogen is always zero.	B) The oxidation number for hydrogen is always + 1.
C) The oxidation number for hydrogen is always -1.	D) Hydrogen can have more than one oxidation number.

Answer & Explanation Answer: D) Hydrogen can have more than one oxidation number.

Explanation:

Hydrogen has two possible oxidation numbers: +1 and -1.

-1 in case of hydrides.

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Filed Under: Chemistry
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Q:

Which of the following is an unsaturated Hydrocarbon?

A) Butane	B) Pentane
C) Ethyne	D) Propane

Answer & Explanation Answer: C) Ethyne

Explanation:

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Filed Under: Chemistry
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Q:

Goods whose demand is proportional to price are called

A) inferior goods	B) Veblen goods
C) normal goods	D) exclusive goods

Answer & Explanation Answer: B) Veblen goods

Explanation:

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Filed Under: Indian Economy
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Q:

Some of the energy derived from the food we eat is stored in the form of

A) Amino acids	B) Pyruvic acid
C) Glucose	D) Glycogen

Answer & Explanation Answer: D) Glycogen

Explanation:

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Filed Under: Biology
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Q:

According to the provisions of the Constitution of India, which one of the following is nota fundamental duty?

A) To respect the National Flag	B) To defend the country
C) To provide education to one’s child	D) To promote village and cottage industries

Answer & Explanation Answer: D) To promote village and cottage industries

Explanation:

Article 43 also places upon the State the responsibility of promoting cottage industries, and the federal government has, in furtherance of this, established several Boards for the promotion of khadi, handlooms etc., in coordination with the state governments. It is a DPSP.

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Filed Under: Indian Politics
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Q:

The work done in one complete revolution of the moon around the earth is equal to

A) centripetal force x radius of the orbit of the moon	B) gravitational force x circumference of the orbit of the moon
C) gravitational force x diameter of the orbit of the moon	D) zero

Answer & Explanation Answer: D) zero

Explanation:

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Filed Under: Physics
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Q:

In networks, a small message used to pass between one station to another is known as ____________

A) Token	B) Byte
C) Word	D) Ring

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