General science - Multiple Choice Questions (MCQs) – Page 25

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Recent MCQs

If an apple is released from an orbiting spaceship, it will

  1. Fall towards the Earth
  2. Move at a lower speed
  3. Move along with the spaceship at the same speed
  4. Move at a higher speed
General science

Which is the smallest gland in human body?

  1. Adrenal
  2. Thyroid
  3. Pancreas
  4. Pineal
General science

Which of the following periods has generally been considered to be the 'Little Ice Age'?

  1. 730 A.D. - 850 A.D.
  2. 950 A.D. - 1250 A.D.
  3. 1650 A.D. - 1870 A.D.
  4. 8000 to 10,000 years B.P. (Before Present)
General science

A hydrophyte is:

  1. a marine animal
  2. an aquatic plant
  3. a plant disease
  4. a rootless plant
General science

It is comfortable to wear white clothes in summer because:

  1. They Reflect all the heat that is falling it
  2. Disfigure all the heat transmitted in the body
  3. They absorb sweat
  4. They provide coolness to the eyes
General science

A person with vision defect 'Myopia' can see:

  1. nearby objects clearly
  2. distant objects clearly
  3. nearby as well as distant objects clearly
  4. neither nearby nor distant objects clearly
General science

Why does water boil at temperature below 100°C at higher altitudes?

  1. The atmospheric pressure decreases and hence boiling point is lowered
  2. The gravitational attraction is less
  3. Because of heavy winds in mountains
  4. None of the above is correct
General science

Chemical name of limestone is?

  1. Calcium carbonate
  2. Magnesium chloride
  3. Sodium chloride
  4. Sodium sulphide
General science

Which one of the following forms an irreversible complex with haemoglobin of the blood?

  1. Carbon dioxide
  2. Pure Nitrogen gas
  3. Carbon monoxide
  4. A mixture of carbon dioxide and helium
General science

When does heart rest?

  1. Never
  2. While sleeping
  3. Between two beats
  4. While doing yoga
General science

Smog is essentially caused by the atmospheric presence of:

  1. Oxygen and ozone
  2. Ozone and nitrogen
  3. Oxygen and nitrogen
  4. Oxide of nitrogen and sulphur
General science

Match List-I with List-II and select the correct answer from the code given below the lists:
List-I(Physical quantities) - List-II (Units)

A. Acceleration - 1. Joule
B. Force - 2. Newton second
C. Work done - 3. Newton
D. Impulse - 4. Metre/second2

Code:
A B C D

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

Acid rain is caused by:

  1. cooling of acid vapours reaching the clouds
  2. reaction between rain water and carbon dioxide pollutants
  3. reaction between cloud water and sulphur dioxide pollutants
  4. reaction between water vapours and electric charge during lightning and cloud hursts
General science

Which one of the following materials contains calcium?

  1. China clay
  2. Corundum
  3. Gypsum
  4. Talc
General science

A man, who does not know when to stop eating, is suffering from

  1. Bulimia
  2. Anorexia Nervosa
  3. Diabetes
  4. Hyperacidity
General science

Ultrasonics are sound waves of frequency:

  1. Greater than 20, 000 Hz
  2. Less than 10, 000 Hz
  3. Equal to 1000 Hz
  4. None of these
General science

If an unsaturated sugar solution is prepared by mixing 100 grams of sugar with half a litre of water, which of the following physical quantities will not change?

  1. mass
  2. density
  3. concentration
  4. volume
General science

Which of the following substances is not a protein ?

  1. Cotton
  2. Hair
  3. Spider Silk
  4. Hoof
General science

Which one of the following statements is correct?

  1. DDT is antibacterial compound
  2. TNT is an insecticide
  3. RDX is an explosive
  4. LSD is an antiviral compound
General science

Which of the following is/are used as disinfectant of water?

  1. Ozone
  2. Chlorine dioxide
  3. Chloramine
  4. All of the above
General science

What is the source of electric energy in an artificial satellite?

  1. Thermopile
  2. Solar cells
  3. Dynamo
  4. Mini nuclear reactor
General science

"Radioactive dating" is a technique which can be used to measure:

  1. the age of rocks
  2. composition of rocks
  3. colour of rocks
  4. weight of rocks
General science

Mirage is an example of:

  1. Refraction
  2. Total internal reflection
  3. Dispersion
  4. Diffraction
General science

In cold weather, aquatic animals survive when water at the top layer of the lake freezes into ice because:

  1. they can breathe in ice
  2. they have enough of accumulated oxygen inside them
  3. their body structure is such that they can survive without oxygen
  4. water has highest density at 4°C so underneath the top layer of ice there is layer of water
General science