Questions

Q:

Which describes the correct pairing of DNA bases?

A) guanine - cytosine B) adenine - cytosine
C) guanine - thymine D) thymine - cytosine
 
Answer & Explanation Answer: A) guanine - cytosine

Explanation:

The correct pairing of DNA bases among the given options is guanine - cytosine.

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Q:

A subset of the database which contain virtual data that is derived from the database files but is not explicitly stored is called

A) Touple B) View
C) Relation D) Key
 
Answer & Explanation Answer: B) View

Explanation:

A view may be a subset of the database or it may contain virtual data that is derived from the database files but is not explicitly stored .

 

 

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Q:

In the making of jewels, gold is usually mixed with 

A) zinc B) tin
C) copper D) aluminium
 
Answer & Explanation Answer: C) copper

Explanation:

In making jewels, gold is usually mixed with copper to make it little hard.

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Q:

Rank these compounds by boiling point- Pentane, Propane and Hexane.

A) Pentane > Propane > Hexane B) Propane > Pentane > Hexane
C) Hexane > Pentane > Propane D) Propane > Hexane > Pentane
 
Answer & Explanation Answer: C) Hexane > Pentane > Propane

Explanation:

The boiling point of the compounds depend on the number of carbons in them. Hexane has 6, Pentane has 5 and Propane has 3 carbons. As Hexane is with 6 carbons it has highest boiling point and next Pentane with 5 and lowest Propane with 3. 

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Q:

Carbon, Diamond and Graphite are together called

A) Isomers B) Isotopes
C) Allotrope D) Isomorphs
 
Answer & Explanation Answer: C) Allotrope

Explanation:
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Q:

When a bullet is fired from a gun 

A) the gun moves forward B) the gun jumps up
C) the gun does not move D) the gun recoils with the same momentum as the bullet
 
Answer & Explanation Answer: D) the gun recoils with the same momentum as the bullet

Explanation:

Newton's III law involved

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Q:

'Grand Slam' in Tennis Consists of which of the following combinations?

A) Wimbledon, French Open, Italian Open, Australian Open B) Wimbledon, Australian Open, Japan Open, US Open
C) Australian Open, French Open, Wimbledon, US Open D) Wimbledon, South Africa Open, French Open
 
Answer & Explanation Answer: C) Australian Open, French Open, Wimbledon, US Open

Explanation:
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Filed Under: General Awareness

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Q:

The Black Box is a device used in an aircraft to

A) control the speed B) detect any flaw in the engines
C) Record the flight data D) maintain contact with the ground
 
Answer & Explanation Answer: C) Record the flight data

Explanation:
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