Consider the following diseases:

i)Cholera
ii)Tuberculosis
iii)Small pox
iv)Typhoid

Which of the above diseases are caused by bacteria ?

• (i) and (iii) only
• (ii) and (iv) only
• (i), (iii) and (iv)
• (i), (ii) and (iv)
Correct Option: D  [ (i), (ii) and (iv) ]

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 gases constitutes the major portion of the atmosphere by volume ?

• Oxygen
• Argon
• Nitrogen
• Carbon dioxide
Correct Option: C  [ Nitrogen ]

Remark:

Nuclear fission is caused by the impact of

• Neutron
• Proton
• Deuteron
• Electron
Correct Option: A  [ Neutron ]

Remark:

What is the rarest element on earth?

• Radium
• Einsteinium
• Astatine
• none of these
Correct Option: C  [ Astatine ]

Remark: Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85

Shadows are formed when a __________ object comes in the path of light.

• Opaque
• Transparent
• Luminous
• Translucent
Correct Option: A  [ Opaque ]

Remark:

Who invented insulin?

• Jonas E. Salk
• Alexander Fleming
• F. Banting
• Roentgen
Correct Option: C  [ F. Banting ]

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.

Which among the following diseases are not bacterial?

• Cholera and Diphtheria
• Malaria and trichomonasis
• Tetanus and typhoid
• Tuberculosis and leprosy
Correct Option: C  [ Tetanus and typhoid ]

Remark:

Light year is a unit of measurement of

• speed of light
• stellar distances
• speed of rockets
• time
Correct Option: B  [ stellar distances ]

Remark: