Questions

Q:

D.D.T. was invented by

A) Paul Muller B) John Dalton
C) Rudolf D) None of these
 
Answer & Explanation Answer: A) Paul Muller

Explanation:

Swiss chemist Paul Hermann Muller discovered DDT (dichloro-diphenyl-trichloroethane) noted its effectiveness as a pesticide during World War II to control malaria and typhus among civilians and troops, a discovery that earned him a Nobel Prize in 1948.

 

It was first synthesized in the year 1874.

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Q:

The 2017 Indian Premier League (IPL 2017) first match on 5 April, 2017 was held in ?

A) Banglore B) Delhi
C) Hyderabad D) Kolkata
 
Answer & Explanation Answer: C) Hyderabad

Explanation:

The 2017 Indian Premier League is scheduled to start on 5th April 2017 and finish on 21 May 2017. The opening match and the final will be played at the Rajiv Gandhi International Cricket Stadium in Hyderabad.

The first match was between Sun Risers Hyderabad and Royal Challengers Banglore.

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Q:

An advanced water management system of Harappan times has been unearthed at

A) Dholavira B) Lothal
C) Kalibangan D) Alamgirpur
 
Answer & Explanation Answer: A) Dholavira

Explanation:
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Q:

The ratio of cost price and marked price of an article is 2:3 and ratio of percentage profit and percentage discount  is 3:2 . what is the discount percentage?

A) 16.66% B) 20%
C) 25% D) 33.33%
 
Answer & Explanation Answer: A) 16.66%

Explanation:

     CP : MP = 2x : 3x

 => Profit = x

 

( %) profit : (%) discount = 3:2

 

Let  CP = 2000,  SP = 300

 

But  3x100×200 + 2x100×300 = 100

 

=>  x = 8.33%

 

Discount 2x = 16.66% 

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Q:

The term _____ designates equipment that might be added to a computer system to enhance its functionality

A) digital device B) system add-on
C) disk pack D) peripheral device
 
Answer & Explanation Answer: D) peripheral device

Explanation:
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Q:

Hypokinetic diseases refer to those that are caused by

 

 

A) infections B) high cholesterol
C) inactivity D) high blood pressure
 
Answer & Explanation Answer: C) inactivity

Explanation:
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Q:

Read each sentence to find out whether there is any error in any part

I am(a) glad(b) that you are here(c). No error.(d)

A) a B) b
C) c D) d
 
Answer & Explanation Answer: D) d

Explanation:
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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


Manja, or the glass-coated string used for flying kites, not only poses threat to humans, animals and birds but also to trees. A study by the country's oldest botanical garden has revealed that it poses a great threat to trees. But how can a snapped string struck in a tree kill the tree? Apparently, it does so by allying with the creepers in the garden.


A research paper by three scientists of the Acharya Jagdish Chandra Bose Indian Botanic Garden, located in West Bengal's Howrah district, illustrates in detail how the manja, in collusion with climbers, does the damage. "The abandoned, torn kite strings act as an excellent primary supporting platform for the tender climbers, giving easy passage to reach the top of the trees. Lateral branches from the top of the climber and other accessory branches from the ground reaches the top taking support of the first climber, completely covers the treetop, thus inhibiting the penetration of sunlight," says the research paper.


How many scientists contributed to a study by country's oldest botanical gardens on how manja can kill a tree?

 

A) Two B) Three
C) Five D) Four
 
Answer & Explanation Answer: B) Three

Explanation:
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