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Q:

Two trains cross each other in _____ time ? 

17499494_1251651558275279_9192886760450524065_n1500008429.png image

A) 145 sec B) 124 sec
C) 158 sec D) 162 sec
 
Answer & Explanation Answer: D) 162 sec

Explanation:

Given two trains of length = 180 mts + 180 mts 

The distance is = Length of trains = 360 mts 

Speed = 58 - 50 = 8 kmph x 5/18 m/s

Then, Time = dis/speed = (360x18) / (8x5) = 162 sec.

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Filed Under: Math Puzzles
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Q:

Organisms need Nutrients in order to

A) Breaking down food B) Utilize chemical compounds
C) recycling D) None
 
Answer & Explanation Answer: A) Breaking down food

Explanation:

Nutrients are necessary for break down the food and supply energy to the organisms and to carry out essential life functions.

  • Important nutrients are Hydrogen, Carbon and Oxygen.

 

  • Some more important nutrients for plants are : Potassium, Sulphur, Nitrogen, Phosphorous, Calcium and Magnesium. 
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Filed Under: Biology
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Q:

In India, during the last decade the total cultivated land for which one of the following crops has remained more or less stagnant?

A) Rice B) Oil Seeds
C) Pulses D) Sugarcane
 
Answer & Explanation Answer: C) Pulses

Explanation:
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Filed Under: Indian Geography

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Q:

Gases used in normal welding?

A) Oxygen and Acetylene B) Acetylene and Nitrogen
C) Oxygen, Hydrogen and Acetylene D) Oxygen and Hydrogen
 
Answer & Explanation Answer: A) Oxygen and Acetylene

Explanation:

Normal Gas welding use oxygen-acetylene.

 

Depending on what materials you are welding, there are some more options that might be used.

For example - MIG/TIG use Argon, MAG use an argon-something mix.

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Filed Under: Chemistry
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Q:

Ozone holes are more pronounced at the

A) Tropic of cancer B) Poles
C) Equator D) Tropic of capricorn
 
Answer & Explanation Answer: B) Poles

Explanation:
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Filed Under: General Science
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Q:

What treat was invented by 11-year-old Frank Epperson in 1905?

A) Popsicle B) Banana split
C) Cotton candy D) Cracker Jacks
 
Answer & Explanation Answer: A) Popsicle

Explanation:
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Filed Under: Inventions

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Q:

Component Testing is also called as

component_testing_is_also_called_as1542088267.jpg image

A) Unit testing B) Module testing
C) Program testing D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Component Testing is also called as Module or Unit or Program testing. It is testing of all the components in an application separately.

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Filed Under: Software Testing
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Q:

' A Valley of ten thousand smokes' is the name given to a zone near the volcano

A) Mauna loa of Hawaie B) Pinatabu of Philippines
C) Pelle in the Caribbean sea D) Katmai of Alaska
 
Answer & Explanation Answer: D) Katmai of Alaska

Explanation:
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Filed Under: World Geography

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