Questions

Q:

If sin 30° + cos 45° = X, then the value of X.

A) (2√2-√3)/2 B) 4/√3
C) (1-√3)/√3 D) (1+√2)/2
 
Answer & Explanation Answer: D) (1+√2)/2

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Q:

What does the kinetic energy (KE) of a moving body depend upon?

A) Mass & its position B) Weight & its position
C) Mass & acceleration D) Mass & velocity
 
Answer & Explanation Answer: D) Mass & velocity

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Q:

Which of the following voted for Brexit in June 2016?

A) England and Scotland B) England and Wales
C) Scotland and Northern Ireland D) Wales and Northern Ireland
 
Answer & Explanation Answer: B) England and Wales

Explanation:

The decision by the electorate was to "Leave the European Union" which won by a majority of 1,269,501 votes (3.78%) over those who had voted in favour of "Remain a member of the European Union" with England and Wales voting to "Leave" whilst Scotland and Northern Ireland voted to "Remain".

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Q:

Which of the following metals reacts vigorously with cold water?

A) Potassium B) Aluminium
C) Zinc D) Iron
 
Answer & Explanation Answer: A) Potassium

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Q:

Atomic mass of Sulphur is 32 u. The number of moles in 16 grams of Sulphur is:

A) 0.5 moles of Sulphur B) 0.25 moles of Sulphur
C) 0.75 moles of Sulphur D) 1 mole of Sulphur
 
Answer & Explanation Answer: A) 0.5 moles of Sulphur

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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

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Q:

Which country suggested the name 'NIVAR' to the 4th cyclone hit the North Indian Ocean Region in 2020?

A) India B) Iran
C) Sri Lanka D) Vietnam
 
Answer & Explanation Answer: B) Iran

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Q:

What is the range of frequencies of sound waves audible to human beings?

A) 16kHz to 200kHz B) 16Hz to 16kHz
C) 16Hz to 20kHz D) 14Hz to 20kHz
 
Answer & Explanation Answer: C) 16Hz to 20kHz

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