Q:

Which one of the following statements is not correct?

A) When total utility is maximum, marginal utility is zero	B) When total utility is decreasing, marginal utility is negative
C) When total utility is increasing, marginal utility is positive	D) When total utility is maximum,marginal and average utility are equal to each other.

Answer & Explanation Answer: D) When total utility is maximum,marginal and average utility are equal to each other.

Explanation:

Total utility -It is total psychological satisfaction which a consumer derives from the consumption of a commodity is known as total utility

Marginal utility -It is anaddition made in total utility by consuming and additional unit of a commodity is known as marginal utility.

•When marginal utility is positive,total utility increases

•When marginal utility is zero,total utility is at maximum

•When marginal utility is negative,total utility decreases

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Q:

Which of the following is used to get relief when you have been stung by a honeybee?

A) Common salt	B) Baking soda
C) Acetic acid	D) Washing soda

Answer & Explanation Answer: B) Baking soda

Explanation:

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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. Ifa sentence is free from error, select 'No Error'.

My elder son deals with (1)/ spare parts and manages (2)/ his bread and butter. (3)/ No Error (4)

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: A) 1

Explanation:

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Q:

Nitrogen fixation is a process of

A) Assimilation of nitrate	B) Utilisation of nitrogen gas
C) Conversion of organic nitrogen to proteins	D) Conversion of molecular nitrogen to ammonia

Answer & Explanation Answer: C) Conversion of organic nitrogen to proteins

Explanation:

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Q:

In the process of ___, the iron is protected by a coating of zinc.

A) greasing	B) alloying
C) galvanisation	D) anodising

Answer & Explanation Answer: C) galvanisation

Explanation:

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Q:

Which of the following metals does NOT react with cold or hot water?

A) Aluminium	B) Potassium
C) Sodium	D) Calcium

Answer & Explanation Answer: A) Aluminium

Explanation:

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Q:

Grand Anicut Canal system, is located in which state?

A) Tamil Nadu	B) Madhya Pradesh
C) Telangana	D) Andhra Pradesh

Answer & Explanation Answer: A) Tamil Nadu

Explanation:

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Q:

Capital deepening refers to

A) going for more fixed capital per worker	B) emphasis on social overhead capital
C) constant capital-output ratio	D) increasing capital-output ratio

Answer & Explanation Answer: A) going for more fixed capital per worker

Explanation:

Capital deepening is a situation where the capital per worker is increasing in the economy. This is also referred to as increase in the capital intensity. Capital deepening is often measured by the rate of change in capital stock per labour hour.

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