Magnification produced by a rear view mirror fitted in vehicles:

• is less than the object
• is more than the object
• is equal to the object
• can be more or less than the object depending upon the position of object in front of it.
Correct Option: A  [ is less than the object ]

Remark:

What is Bryolory?

• Study of food
• Study of fruit
• Study of mosses and liverworts
• Study of rings
Correct Option: C  [ Study of mosses and liverworts ]

Remark:

The mountaineers carry oxygen with them because:

• at an altitude of more than 5 km there is no air
• the amount of air available to a person on mountain is lesser than that available on the ground
• the temperature of air is lesser than that on the ground.
• The pressure of air is higher than that on the ground.
Correct Option: B  [ the amount of air available to a person on mountain is lesser than that available on the ground ]

Remark:

Main constituents of biogas are:

• Methane and carbon monoxide
• Butane and carbon monoxide
• Methane and carbon dioxide
• Ethylene and carbon dioxide
Correct Option: C  [ Methane and carbon dioxide ]

Remark:

Acid rain is caused due to the pollution of environment by:

• Carbondioxide and Nitrogen
• Carbon monoxide and Carbondioxide
• Ozone and Methane
• Some oxide of Nitrogen and Sulpher
Correct Option: D  [ Some oxide of Nitrogen and Sulpher ]

Remark: Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air

Which kind of Power accounts for the largest share of power generation in India ?

• Hydro-electric
• Solar
• Thermal
• Nuclear
Correct Option: C  [ Thermal ]

Remark:

Which metal is responsible for Itai-Itai disease?

• Cadmium
• Nickel
• Chromium
• Mercury
Correct Option: A  [ Cadmium ]

Remark:

Volumetric method for determination of fat % of milk is:

• Waste fall balance
• Soxhlet method
• Richmond sliding method
• Garber method
Correct Option: D  [ Garber method ]

Remark:

Which of the following computer language is used for artificial intelligence?

• FORTRAN
• COBOL
• INDEXING
• PROLOG
Correct Option: D  [ PROLOG ]

Remark:

Sound waves having frequency less than 20 Hz are called __________ waves.

• Intelligent
• Inferior
• Infrasonic
• Instrumental
Correct Option: C  [ Infrasonic ]

Remark: