Electric appliances have star rating ( upto 5 stars) on them. More the number of stars :

1. longer is the life span of the appliance
2. more stringent is the quality checks
3. Higher is the energy efficiency of the appliance

Which of the above is / are correct ?

• 1 only
• 3 only
• 1 and 2 only
• 1, 2 and 3
Correct Option: B  [ 3 only ]

Remark:

In coriander the useful parts are:

• roots &leaves
• leaves & flowers
• leaves & dried fruits
• flower& dried fruits
Correct Option: C  [ leaves & dried fruits ]

Remark:

A large collection of files are called:

• folder
• records
• sectors
• database
Correct Option: D  [ database ]

Remark:

Which of the following is not correctly matched ?

• Becquerel : Radioactivity
• Alexander Flaming : Penicillin
• Louis Pasteur : Blood groups
• William Harvey : Blood circulation
Correct Option: C  [ Louis Pasteur : Blood groups ]

Remark:

In your opinion which of the following is due to ozone hole ?

• Increased UV radiation
• Acid rain
• Global warming
• Greenhouse effect
Correct Option: A  [ Increased UV radiation ]

Remark:

Which is the respiratory organ of fish?

• Ears
• Gills
• Skin
• Lungs
Correct Option: B  [ Gills ]

Remark:

In which part of the human body carpal bones are found ?

• Wrist
• Femur
• Neck
• None of these
Correct Option: A  [ Wrist ]

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:

Humidity is a measure of

• pressure in the air
• viscosity of the air
• air resistance
• moisture in air
Correct Option: D  [ moisture in air ]

Remark:

The only snake that builds its nest is:

• Krait
• King cobra
• Chain viper
• Saw scaled viper
Correct Option: B  [ King cobra ]

Remark: