Questions

Q:

What is the value of sin ­7π/4c?

A) ­1/√2 B) 2/√3
C) 1/√2 D) ­2/√3
 
Answer & Explanation Answer: C) 1/√2

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Q:

How long does a train, 75 m long, moving at 60 km/hr take to pass a certain telegraph post?

A) 3.5 seconds B) 4.5 seconds
C) 5 seconds D) 5.4 seconds
 
Answer & Explanation Answer: B) 4.5 seconds

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Q:

Who is the captain of the Indian men's volleyball team as of February 2018?

A) K Udayakumar B) Navjit Singh
C) GR Vaishnav D) Gurinder Singh
 
Answer & Explanation Answer: D) Gurinder Singh

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Q:

If waste materials contaminate the source of drinking water, which of the following diseases will spread?

A) Scurvy B) Typhoid
C) Malaria D) Anaemia
 
Answer & Explanation Answer: B) Typhoid

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Q:

The elements known as primary nutrients for plants

A) Nitrogen, Phosphorus and Potassium B) Nitrogen, Oxygen and Silicon
C) Potassium, Boron and Nitrogen D) Nitrogen, Phosphorus and Iron
 
Answer & Explanation Answer: A) Nitrogen, Phosphorus and Potassium

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Q:

Which method will be employed to test the hardness of water?

A) Boiling B) Distillation
C) Formation of lather with soap D) None of these
 
Answer & Explanation Answer: C) Formation of lather with soap

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Q:

The passage of an electric current through a conducting liquid causes ___________.

A) Galvanisation B) Evaporation
C) Physical Reaction D) Chemical Reaction
 
Answer & Explanation Answer: D) Chemical Reaction

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Q:

____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.

 

A) Sodium, Potassium B) Magnesium, Aluminium
C) Sodium, Chlorine D) Aluminium, Chlorine
 
Answer & Explanation Answer: C) Sodium, Chlorine

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