Questions

Q:

The commonly used coolant in refrigerators is

A) Ammonia B) Nitrogen
C) Freon D) Oxygen
 
Answer & Explanation Answer: C) Freon

Explanation:
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Filed Under: Chemistry

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Q:

Which two atoms form an ionic bond?

Answer

Ionic bonding is a type of chemical bond in which valence electrons are lost from one atom and gained by another.. This bond generates two oppositely charged ions.


In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.


 


Example ::


One example of an ionic bond is the formation of sodium fluoride, NaF, from a sodium atom and a fluorine atom. In this reaction, the sodium atom loses its single valence electron to the fluorine atom, which has just enough space to accept it. The ions produced are oppositely charged and are attracted to one another due to electrostatic forces.

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

What valley is the site of the Earth's highest-ever recorded temperature, 134°F?

Answer

Death Valley

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Subject: World Geography

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Q:

What is Memory-Management Unit (MMU)?

Answer

Hardware device that maps virtual to physical address. In MMU scheme, the value in the relocation register is added to every address generated by a user process at the time it is sent to memory.


->The user program deals with logical addresses; it never sees the real physical addresses

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Q:

Plants wilt due to excess of

A) Photosynthesis B) Absorption
C) Transpiration D) None of the above
 
Answer & Explanation Answer: C) Transpiration

Explanation:

Plants wilt due to excess of Transpiration.

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Filed Under: General Science
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Q:

 Which isolation level does a database without logging default to?

A) committed read B) dirty read
C) mode ANSI D) repeatable read
 
Answer & Explanation Answer: B) dirty read

Explanation:
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Filed Under: IBM Certification

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Q:

Missing letters puzzle

Answer

Answer:  U


Explanation:  Start with the D on the outer left of the diagram, and move clockwise around the outer segments, then start on the N anti-clockwise around the inner segments. Letters advance through the alphabet in steps of 3, then 4, 5, and 6, repeating this sequence.

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Q:

Exercise improves memory and learning.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Exercise can boost your memory and thinking skills by improvising alertness, attention and motivation.

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Subject: General Science
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