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Q:

For which one of the following snakes is the deit mainly composed of other snakes?

A) Krait	B) Russel's viper
C) Rattlesnake	D) King cobra

Answer & Explanation Answer: D) King cobra

Explanation:

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Filed Under: Animals and Birds

Q:

This animal fasts for about 8 months in a year and yet is active, gives birth, and nurses its young while fasting. Name the animal

A) Polar Bear	B) Frog
C) Reindeer	D) Lion

Answer & Explanation Answer: A) Polar Bear

Explanation:

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Filed Under: Animals and Birds

Q:

Among the following animals , the figures of which are found in the state emblem of india?

A) Bull, deer and eagle	B) Deer and elephant
C) Elephant, Tiger and Bull	D) Horse and Bull

Answer & Explanation Answer: D) Horse and Bull

Explanation:

Refer National symbols

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Filed Under: Animals and Birds

Q:

A contractor undertakes to do a piece of work in 40 days. He engages 100 men at the begining and 100 more after 35 days and completes the work in stipulated time. If he had not engaged the additional men, how many days behind schedule would it be finished?

A) 3	B) 5
C) 6	D) 9

Answer & Explanation Answer: B) 5

Explanation:

[(100 x 35) + (200 x 5)]men can finish the work in 1 day

Therefore, 4500 men can finish the work in 1 day. 100 men can finish it in 4500/100= 45 days.

This is 5 days behind Schedule

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Filed Under: Chain Rule

Q:

3 pumps working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?

A) 9	B) 10
C) 11	D) 12

Answer & Explanation Answer: D) 12

Explanation:

Let the required no of working hours per day be x.

More pumps , Less working hours per day (Indirect Proportion)

Less days, More working hours per day (Indirect Proportion)

$\begin{array}{r} \begin{matrix} P u m p s & 4 : 3 \end{matrix} \\ \begin{matrix} D a y s & 1 : 2 \end{matrix} \end{array}\} ⋮ ⋮ 8 : x$

=> (4 * 1 * x) = (3 * 2 * 8)

=> x=12

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Filed Under: Chain Rule

Q:

Which one of the following types of laser is used in laser printers?

A) Semiconductor laser	B) Dye laser
C) Gas laser	D) Excimer laser

Answer & Explanation Answer: A) Semiconductor laser

Explanation:

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Filed Under: General Science

Q:

Potassium Permanganate is used for purifying drinking water, because

A) it is a sterilising agent	B) it dissolves the impurities of water
C) it is a reducing agent	D) it is an oxidising agent

Answer & Explanation Answer: D) it is an oxidising agent

Explanation:

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Filed Under: General Science

Q:

The gases used in different types of welding would include

A) oxygen and hydrogen	B) oxygen and acetylene
C) oxygen, acetylene and argon	D) oxygen, hydrogen, acetylene and nitrogen

Answer & Explanation Answer: B) oxygen and acetylene

Explanation:

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Filed Under: General Science

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