Q:

Which of the following is a characteristic of an exothermic reaction?

A) Release of heat	B) Absorption of heat
C) Doesn't involve any change in temperature	D) None of the option is correct

Answer & Explanation Answer: A) Release of heat

Explanation:

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Q:

If I is the current through a wire and e is the charge of an electron, then the number of electrons crossing in t seconds will be given by

A) e/It	B) It/e
C) Ie/t	D) Ite

Answer & Explanation Answer: B) It/e

Explanation:

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Q:

If a ball is thrown vertically upwards with a velocity of 40 m/s, then what will be the magnitude of its displacement after 6 s?

A) 80 m	B) 40 m
C) 60 m	D) 20 m

Answer & Explanation Answer: C) 60 m

Explanation:

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Q:

An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as $342 {ms}^{- 1}$ ?

A) 513 m	B) 644 m
C) 342 m	D) 171 m

Answer & Explanation Answer: A) 513 m

Explanation:

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Q:

Due to an acceleration of 1 m/s2 the velocity of a body increases from 15 m/s to 20 m/s in a certain period. Find the displacement (in m) of the body in that period.

A) 175	B) 625
C) 87.5	D) 312.5

Answer & Explanation Answer: C) 87.5

Explanation:

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Q:

The Incident Command System (ICS) is

Answer

Workspace

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Q:

The 'Go for Zero' policy, is associated with which country?

A) New Zealand	B) Germany
C) United Kingdom	D) Australia

Answer & Explanation Answer: D) Australia

Explanation:

The "Go for Zero" policy of Australia helped the country to bring down its COVID-19 cases. The Go for zero policy of Australia was proposed by a non-profit think tank Grattan Institute that advises the government. Under the policy besides expanding the testing of covid-19, Australia also increased contact tracing and mandatory isolation.

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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

Be appropriate or applicable

A) Futile	B) Extraneous
C) Appertain	D) Irrelative

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