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Q:

Persistence of vision is the principle behind

A) Telescope B) Periscope
C) Cinema D) Microscope
 
Answer & Explanation Answer: C) Cinema

Explanation:

Optical illusion is what that refers to persistence of vision with a principle that multiple images blend into a single image in human mind and what is showed in cinema.

 

Hence, Persistence of vision is the principle behind cinema.

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Filed Under: Physics
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Q:

Which bacteria cause the greatest harm in the food industry?

A) Recycling B) Digestive
C) Fermenting D) Pathogenic
 
Answer & Explanation Answer: D) Pathogenic

Explanation:

Pathogenic bacteria cause the greatest harm in the food industry.

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Filed Under: Biology
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Q:

Which of the following processes would release energy?

A) Condensation B) Fermentation
C) Evaporation D) None of the above
 
Answer & Explanation Answer: A) Condensation

Explanation:
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Filed Under: General Science
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Q:

What is the cause of most boating accidents?

what_is_the_cause_of_most_boating_accidents1538570800.jpg image

A) Machinery failure B) Alcohol use
C) Lack of proper look-out D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

The main causes for the boat accidents are ::

1. Excessive speed

2. Machinery failure

3. Operator inexperience

4. Alcohol use

5. Operator inattention

6. Lack of proper look-out

7. Careless/reckless behavior and hull failure

8. Hazardous waters

and some more...

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Filed Under: General Awareness
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Q:

Crack the missing number in the given puzzle?

missing_number_puzzle11538565817.jpg image

A) 3 B) 2
C) 1 D) 0
 
Answer & Explanation Answer: B) 2

Explanation:

Here in the given number puzzle, the logic is

column 2 x column 3 = column 1

3 x 3 = 9

2 x 3 = 6

 

Similarly,

4 x ? = 8

=> ? = 8/4 = 2.

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Filed Under: Number Puzzles
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Q:

Consumer surplus arises in a market because

A) some consumers are willing to pay more than the equilibrium price but do not need to do so B) some consumers are willing to pay less than the equilibrium price but do not need to do so
C) at market price, the quantity demanded is less than the quantity supplied D) at market price, the quantity demanded is greater than the quantity supplied
 
Answer & Explanation Answer: A) some consumers are willing to pay more than the equilibrium price but do not need to do so

Explanation:
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Filed Under: Indian Economy
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Q:

Is deposition endothermic or exothermic?

A) Endothermic B) Exothermic
C) Both A & B D) Can't be determined
 
Answer & Explanation Answer: B) Exothermic

Explanation:

In thermodynamics, deposition is a phase transition in which gases are directly transformed to solids without converting to liquids first.

 

For example, watervapour is directly changed to ice without first becoming to liquid water. In this process, heat is released making the process exothermic process.

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Filed Under: Chemistry
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Q:

Which systems comprise the nervous system?

A) Central nervous system B) Peripheral nervous system
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The nervous system of the human brain consists of the central nervous system which has brain and the spinal cord and the peripheral nervous system which has perpheral, cranary, spinal nerves.

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Filed Under: Biology
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