General science - Multiple Choice Questions (MCQs) – Page 18

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Recent MCQs

Match List-I and List-II and select the correct answer from the code given below the lists:
List-I (Plant) - List-II (Use)

A. Brahmi - 1. Anti-diabetic
B. Sadabahar - 2. Carminative
C. Pudina - 3. Expectorant
D. Tulsi - 4. Brain Tonic

Code:
A B C D

  1. 1 2 3 4
  2. 4 1 2 3
  3. 3 2 1 4
  4. 2 4 3 1
General science

Which of the following was invented by Wilhelm Roentgen?

  1. Radio
  2. X-Ray Machine
  3. Electric Bulb
  4. None of the above
General science

The substance which makes up about 80% of the living material in most organisms is:

  1. Protein
  2. Fats
  3. Carbohydrates
  4. Minerals
General science

In wind power, which form of energy is converted into electrical energy?

  1. Kinetic energy
  2. Potential energy
  3. Solar energy
  4. Radiant energy
General science

Super rice was developed by:

  1. M.S. Swaminathan
  2. G.S. Khush
  3. N.E. Borlaug
  4. P.K. Gupta
General science

When there is a decrease in the concentration of oxygen in the blood, the rate of breathing:

  1. decreases
  2. increases
  3. does not change
  4. first decreases, then increases
General science

Match List I with List II and select the correct answer from the code given below:
List-I - List-II

A. Hormone - 1. Lipase
B. Enzyme - 2. Testosterone
C. Phospholipid - 3. Lecithin
D. Polymer - 4. Polyethylene

Code:
A B C D

  1. 2 1 3 4
  2. 4 1 2 2
  3. 2 3 4 2
  4. 1 2 3 1
General science

Which one of the following is the bio-ethically non-controversial source of stem cells as an alternative to the highly controversial embryonic stem cells?

  1. Bone marrow-derived stem cells
  2. Amniotic fluid derived stem cells
  3. Blood of foetus
  4. Blood of babies
General science

Which of the following is NOT correctly matched?

  1. Desalination - Sea water
  2. Reverse osmosis - Potable water
  3. Denaturation - Proteins
  4. Pasteurisation - Tea
General science

Which one of the following statements is not true for a person suffering from hypermetropia?

  1. The person can see far objects distinctly.
  2. The focal length of the lens is large.
  3. The image of the close objects is focussed behind the retina.
  4. A concave lens is used to correct this defect.
General science

The stench due to leakage from the LPG cylinder is because of:

  1. Methane
  2. Propane
  3. Butane
  4. Ethyl mercaptan
General science

The reason of mirage is

  1. Interference of light
  2. Diffraction of light
  3. Polarisation of light
  4. Total internal reflection of light
General science

Which is a celestial phenomenon occurring due to stars:

  1. Ozone hole
  2. Black hole
  3. Rainbow
  4. Comet
General science

Keeping pigs away from the human habitat is helpful in eradication of:

  1. Malaria
  2. Japanese encephalitis
  3. Elephantiasis
  4. Polio
General science

Blue colour of the sky is due to:

  1. Scattering of light
  2. Dispersion of light
  3. Interference of light
  4. Emission of more blue light as compared to other colours by the sun
General science

Which one of the following concerns soil?

  1. Edaphic
  2. Climatic
  3. Biotic
  4. Topography
General science

Which one of the following pairs is correctly matched?

  1. Pneumonia - Lungs
  2. Cataract - Thyroid gland
  3. Jaundice - Eye
  4. Diabetes - Liver
General science

Consider the following statements about human brain:

1. The brain is responsible for regulating the heart beat.
2. It is responsible for balancing the body.

Select the correct answer using the codes given below.
Codes :

  1. Only 1 is correct
  2. Only 2 is correct
  3. 1 and 2 both are correct
  4. Neither 1 nor 2 is correct
General science

Match List-I with List-II and select the correct answer from the code given below the lists:
List-I (Air Pollutant) - List-II (Part affected)

A. Asbestos dust - 1. Brain
B. Lead - 2. Stomach
C. Mercury - 3. Lung
D. Carbon Monoxide - 4. Blood stream

A B C D

  1. 1 2 3 4
  2. 3 1 2 4
  3. 2 3 4 1
  4. 4 3 2 1
General science

Which of the following organism has "White Blood" ?

  1. Lizard
  2. Cockroach
  3. House Bug
  4. Mosquito
General science

Smaller forms of computers are possible because of use of which substance?

  1. Transistor
  2. Integrated circuit chips
  3. Nano material
  4. Super Conductor
General science

Assertion (A): The atmosphere receives most of the heat only indirectly from the sun and directly from the earth's surface.
Reason (R): The conversion from shortwave solar to long-wave terrestrial energy takes place at the earth's surface.

Code:

  1. Both A and R are true and R is the correct explanation of A
  2. Both A and R are true but R is not the correct explanation of A
  3. A is true but R is false
  4. A is false but R is true
General science

Hydrogen gas can be conveniently used as a fuel for running vehicles if it is absorbed at very low temperature by a substance only to be released in the temperature generated by the exhaust. What is that substance found in India?

  1. Hydrides
  2. Coals
  3. Soap stone
  4. Resins
General science

An air bubble inside water behaves as a:

  1. bifocal lens
  2. convergent lens
  3. divergent lens
  4. cylindrical lens
General science