Which of the following animals is carnivorous?

• Elephant
• Horse
• Rhinoceros
• Tiger
Correct Option: D  [ Tiger ]

Remark:

An electric bulb has a filament made of

• Boron carbide
• Tungsten
• Tantalum
• Rhenium
Correct Option: B  [ Tungsten ]

Remark:

Bluetooth is a technology in communication which features

• wireless communication using radio waves
• wireless communication using infrared rays
• wireless communication using microwaves
• wireless communication using laser
Correct Option: A  [ wireless communication using radio waves ]

Remark: Bluetooth is a wireless technology using radio frequencies to share data over a short distance.

The acceleration due to gravity at the equator:

• is less than that at the poles
• is greater than that at the poles
• is equal to that at the poles
• does not depend on the earth's centripetal acceleration
Correct Option: A  [ is less than that at the poles ]

Remark:

As per Bureau of Indian Standards (BIS) for drinking water acceptable limit for total hardness as CaCO3 is

• 100 mg/l
• 200 mg/l
• 300 mg/l
• None of these
Correct Option: B  [ 200 mg/l ]

Remark:

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:

The purest form of iron is

• White cast iron
• Grey cast iron
• Wrought iron
• Steel
Correct Option: C  [ Wrought iron ]

Remark:

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

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

Remark:

The moon takes __________ days to go round the earth once.

• 28 days
• 45 days
• 50 days
• 65 days
Correct Option: A  [ 28 days ]

Remark:

The science dealing with the study of phenomena at very low temperature is known as :

• Refrigenics
• Cryogenics
• Cytogenics
• Frozenics
Correct Option: B  [ Cryogenics ]

Remark: