In which year was the "@" chosen for its use in e-mail addresses?

• 1972
• 1976
• 1980
• 1984
Correct Option: A  [ 1972 ]

Remark:

Quality of petrol is expressed in:

• Gold number
• Cetane number
• Methane number
• Octane number
Correct Option: D  [ Octane number ]

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.

Which part is modified as the tusk of elephant?

• canine
• premolar
• second incisor
• molar
Correct Option: C  [ second incisor ]

Remark:

Which of the following statements is correct ?

• Protons are negatively charged and are present in the nucleus
• Electrons are positively charged and are present in the nucleus
• Electrons are negatively charged and are present in the orbits
• The entire mass of atom is distributed in the orbits
Correct Option: C  [ Electrons are negatively charged and are present in the orbits ]

Remark:

Aryabhatta was a famous ________ of ancient India.

• Doctor
• Poet
• Physicist
• Mathematician
Correct Option: D  [ Mathematician ]

Remark:

Which of the following diseases is not caused by bacteria?

• Cholera
• Typhoid
• Tuberculosis
• Chickungunya
Correct Option: D  [ Chickungunya ]

Remark:

Time during which a job is processed by the computer is:

• Delay time
• Real time
• Down time
• Execution time
Correct Option: D  [ Execution time ]

Remark:

Blood Circulation was discovered by?

• Mary Anderson
• William Harvey
• Virginia Apgar
• Robert Feulgen
Correct Option: B  [ William Harvey ]

Remark: William Harvey an English physician discovered the principle of the circulation of the blood through the body.

Which one of the following solutions will not turn blue litmus to red litmus?

• Lemon juice
• Acetic acid
• Sodium hydroxide
• Hydrochloric acid
Correct Option: C  [ Sodium hydroxide ]

Remark: