Q:

Which of the following statement is true?

A) A Primary key is also a candidate key	B) Each relation has at least one foreign key
C) Foreign keys can't have null values	D) A Primary key is also an alternate key

Answer & Explanation Answer: A) A Primary key is also a candidate key

Explanation:

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Filed Under: Computer
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Q:

What is meant by a dedicated computer?

A) Which is assigned one and only one task	B) Which is meant for application software
C) Which is used by one person only	D) Which uses one kind of software

Answer & Explanation Answer: A) Which is assigned one and only one task

Explanation:

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Q:

‘Altitude sickness’ is caused at high altitude due to

A) high partial pressure of oxygen	B) low partial pressure of oxygen
C) low level of haemoglobin	D) high partial pressure of carbon dioxide

Answer & Explanation Answer: B) low partial pressure of oxygen

Explanation:

Altitude sickness, the mildest form being acute mountain sickness (AMS), is the negative health effect of high altitude, caused by rapid exposure to low amounts of oxygen at high elevation.

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Filed Under: General Science
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Q:

Why does ice covered in sawdust not melt quickly?

A) Sawdust does not allow the air to touch the ice	B) The water is absorbed by sawdust
C) Sawdust is a bad conductor of heat	D) Sawdust is good conductor of heat

Answer & Explanation Answer: C) Sawdust is a bad conductor of heat

Explanation:

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Filed Under: General Science
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Q:

The Environment (Protection) Act of India was enacted in the year -

A) 1997	B) 1986
C) 2004	D) 2012

Answer & Explanation Answer: B) 1986

Explanation:

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Filed Under: Indian Politics
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Q:

Which amendment of the Constitution of India increased the age of retirement of High Court judges from 60 to 62 years?

A) 10th	B) 12th
C) 15th	D) 245th

Answer & Explanation Answer: C) 15th

Explanation:

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Q:

What is the rank of India in the Doing Business Report 2020, after the recent update of the World Bank?

A) 63	B) 72
C) 56	D) 85

Answer & Explanation Answer: A) 63

Explanation:

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Filed Under: General Awareness
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Q:

Which of the following is an award given by the Government of India to recognize outstanding achievement in National sports?

A) Ashok Chakra	B) Dada Saheb Phalke Awards
C) Arjuna Award	D) Padma Shri

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