Glaciers always melt first at the:

• top surface
• sides
• bottom
• middle surface
Correct Option: C  [ bottom ]

Remark:

All biological reaction in a living organism come under

• Anabolism
• Catabolism
• Metabolism
• Metamorphosis
Correct Option: C  [ Metabolism ]

Remark: "Metabolism" involves two main categories of reactions:
1.Catabolism: This is the breakdown of larger molecules into smaller ones.

2. Anabolism: This is the synthesis of larger molecules from smaller ones.

The gas used for artificial ripening of green fruit is:

• Ethylene
• Ethane
• Carbon dioxide
• None of these
Correct Option: A  [ Ethylene ]

Remark:

The rusting of the iron is the example of:

• Oxidation
• Reduction
• Polymerisation
• Galvanization
Correct Option: A  [ Oxidation ]

Remark:

A transformer is used to :

• Increase or decrease D.C voltage
• Increase or decrease A.C voltage
• Convert A.C to D.C
• Convert D.C into A.C
Correct Option: B  [ Increase or decrease A.C voltage ]

Remark:

Which of the following does not have red blood cells?

• Snake
• Peacock
• Frog
• Earthworm
Correct Option: D  [ Earthworm ]

Remark:

What is the meaning of the word 'Tsunami' in Japanese?

• High waves
• Destructive waves
• Harbour waves
• none of these
Correct Option: C  [ Harbour wave ]

Remark: Indian Ocean Tsunami occurred on 26 December, 2004 with an epicentre off the west coast of Sumatra, Indonesia.

Which type of fire extinguisher is used for petroleum fire?

• Powder type
• Liquid type
• Soda acid type
• Foam type
Correct Option: A  [ Powder type ]

Remark:

Restarting of computer that is already on is referred to as:

• Cold booting
• Logging off
• Shut down
• Warm booting
Correct Option: D  [ Warm booting ]

Remark: A warm boot refers to the process of restarting a computer system without completely shutting down the power.

A fan produces a feeling of comfort during hot weather because:

• fan supplies cool air
• our body radiates more heat in air
• conductivity of air increases
• our perspiration evaporates rapidly
Correct Option: D  [ our perspiration evaporates rapidly ]

Remark: