Questions

Q:

Cryogenic Engines find applications in

A) Frost - Free refrigerators B) Sub-marine propulsion
C) Researches in superconductivity D) Rocket technology
 
Answer & Explanation Answer: D) Rocket technology

Explanation:

Cryogenic Engines find applications in Rocket technology. A cryogenic rocket engine is a rocket engine that uses a cryogenic fuel or oxidizer, that is, its fuel or oxidizer are gases liquefied and stored at very low temperatures. Notably, these engines were one of the main factors of NASA's success in reaching the Moon by the Saturn V rocket.

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Filed Under: Physics
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Q:

What manages the resources on a network?

A) Operating system B) Data management
C) Application software D) Network software
 
Answer & Explanation Answer: A) Operating system

Explanation:

Operating system software is that manages resources on a network.

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Q:

Logical Challenge

Party1499235830.jpg image

A) 24 B) 11
C) 14 D) 18
 
Answer & Explanation Answer: C) 14

Explanation:

1 Grand mother

1 Mother

4 Wives

4x2 = 8 Daughters

Total = 1 + 1 + 4 + 8 = 14 Female members.

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Filed Under: Logic Puzzles
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Q:

For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?

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

Explanation:
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Filed Under: Database

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Q:

Pulakesin II belongs to _______ Kingdom.

A) Cholas B) Satavahanas
C) Gupthas D) Chalukyas
 
Answer & Explanation Answer: D) Chalukyas

Explanation:
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Filed Under: Indian History

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Q:

Puzzle : Blueberries and Cups

Maria have some blueberries and some cups. If she put 9 blueberries into each cup she will have two cups left. If she put 6 blueberries into each cup she will have three blueberries left over.

Answer

The number of blueberries is equal to number of cups multiplied by 4 minus one left.


That is :


      B = 9(C - 2) -> (1)


Then the number of blueberries will be equal to the number of cups times three plus one left.


That is :


      B = 6C + 3 -> (2)


Now substitute the 1st and 2nd equations:


      B = 9(C - 2)


      B = 6C + 3


      C = 7, B = 45.


Therefore Blueberries = 45 and cups = 7.

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Subject: Math Puzzles

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Q:

 What SQL command will allow you to change the table STUDENT to add the constraint named GradeCheck that states that the values of the Grade column must be greater than 0?

A) ALTER TABLE STUDENT ALTER CONSTRAINT GradeCheck (Grade > 0); B) ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck (Grade > 0);
C) ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0); D) None of the above is correct.
 
Answer & Explanation Answer: C) ALTER TABLE STUDENT ADD CONSTRAINT GradeCheck CHECK (Grade > 0);

Explanation:
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Filed Under: Database

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Q:

Deficiency of 'Thiamine'

A) Beri-Beri B) Pellagra
C) Anaemia D) Rickets
 
Answer & Explanation Answer: A) Beri-Beri

Explanation:
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Filed Under: Biology

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