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:

Which of the following is an anaesthetic gas ?

• Nitrogen dioxide
• Nitrous oxide
• Nitric oxide
• Nitrogen
Correct Option: B  [ Nitrous oxide ]

Remark:

Which of the following is an operating system ?

• Floppy
• Windows Xp
• Oracle
• ROM
Correct Option: B  [ Windows Xp ]

Remark:

Magnetic effect of current gives rise to which force ?

• mechanical
• frictional
• spring
• gravitational
Correct Option: A  [ mechanical ]

Remark:

Which of the following is NOT an allotrope of carbon?

• Diamond
• Graphite
• C-60
• Methane
Correct Option: D  [ Methane ]

Remark:

Marijuana, a psychoactive drug is obtained from:

• seeds of pop
• capsules of poppy
• female inflorescence of cannabis
• male inflorescence of cannabis
Correct Option: C  [ female inflorescence of cannabis ]

Remark:

Insulin is used in the treatment of

• Diabetes
• Anaemia
• Night Blindness
• Goitre
Correct Option: A  [ Diabetes ]

Remark:

In a computer, the parity bit is added for the purpose of:

• Coding
• Error detection
• Controlling
• Indexing
Correct Option: B  [ Error detection ]

Remark:

"Zoonosis" refers to any disease or infection that is naturally transmissible from:
(i) human to human
(ii) animal to human
(iii) animal to animals
(iv) bird to animal
Select the correct answer using the codes given below.

• Only (i) and (iii)
• Both (i) and (ii)
• Both (iii) and (iv)
• Only (ii)
Correct Option: D  [ Only (ii) ]

Remark: A zoonosis is an infectious disease that has jumped from a non-human animal to humans.

Which of the following is not an element ?

• Oxygen
• Nitrogen
• Hydrogen
• Marble
Correct Option: D  [ Marble ]

Remark: