General science - Multiple Choice Questions (MCQs) – Page 11

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Recent MCQs

Which one of the following is not property matched?

  1. Gene splicing & recombinant DNA technology - Genetic Engineering
  2. A diagnostic test to detect the presence or absence or genetic disorders in unborn child - Amniocentesis
  3. A process by which living organisms break down complex matter into simpler constituents – Biodegradation
  4. An inbuilt time-keeping system in all organisms – Bio-mass
General science

Average blood pressure of human being is:

  1. 60/100
  2. 20/80
  3. 60/140
  4. 120/80
General science

'Big-bang theory' explains the origin of

  1. Mammals
  2. Ice age
  3. Universe
  4. Ocean
General science

Which one of the following fertilizers leaves maximum acidity in the soil?

  1. Urea
  2. Ammonium Sulphate
  3. Ammonium Nitrate
  4. Calcium Ammonium Nitrate
General science

Consider the following effects of genetic engineering?

1. Disease resistance
2. Growth promotion
3. Animal cloning
4. Human cloning

Of the above, that have been tried with certain amount of success include?

  1. 1, 3 and 4
  2. 2, 3 and 4
  3. 1, 2 and 4
  4. 1, 2 and 3
General science

Sodium vapor lamps are used in road lighting because

  1. They are cheap
  2. Their light is monochromatic and does not scatter when passing through water droplets
  3. It's cool for eyes
  4. It gives brightness in light
General science

Dinosaurs were:

  1. Cenozoic reptiles
  2. Mesozoic birds
  3. Palaeozoic amphibia
  4. Mesozoic reptiles
General science

Which of the following statements is not correct?

  1. Air conditioners and air coolers both regulate the temperature
  2. Air conditioners and air coolers both regulate the humidity
  3. Air condition control humidity but air cooler does not control humidity
  4. Both controls the speed of air
General science

Assertion (A): Woollen clothes keep us warm.
Reason (R): Wool fibres are made of a particular protein which is a bad conductor of heat.

Select the correct answer using the codes given below:

  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

Blank capsules used in dispensing are made of:

  1. egg-white
  2. gum
  3. starch
  4. gelatine
General science

The substance used as moderator and coolant both, in nuclear reactors is:

  1. Ordinary water
  2. Heavy water
  3. Liquid Ammonia
  4. Liquid Hydrogen
General science

Which one of the following is not achieved by transgenics?

  1. Production of biodegradable plastics
  2. Production of edible vaccines
  3. Production of cloned animals
  4. Production of transgenic crops
General science

Oil spreads over the surface of water because:

  1. Oil is more dense than water
  2. Oil is less dense than water
  3. Oil has more surface tension than, water
  4. Oil has less surface tension than water
General science

Nitrogen fixing bacteria make combination with cell of the root of:

  1. Pulses
  2. Rice
  3. Wheat
  4. Sugarcane
General science

Change in the base sequence within the germ is called:

  1. breeding
  2. mutation
  3. cloning
  4. fusion
General science

Most of the sources of energy we use, represent stored solar energy. Which of the following is NOT ultimately derived from the sun’s energy?

  1. Biomass energy
  2. Nuclear energy
  3. Wind energy
  4. Geothermal energy
General science

The radio-isotope used to detect blood clots in the circulatory system is:

  1. Arsenic-74
  2. Cobalt-60
  3. I-131
  4. Sodium-24
General science

When a glass rod is placed in steam, its length increases but its width:

  1. remains unchanged
  2. decreases
  3. increases
  4. becomes irregular
General science

Which of the following air pollution gets dissolve in haemoglobin of the blood more rapidly than oxygen?

  1. PAN
  2. Carbon dioxide
  3. Carbon monoxide
  4. Ozone
General science

The scientific name attributed to earth as a living organism is:

  1. Gaia
  2. Sita
  3. Green
  4. Hermes
General science

When the TV is switched ON then:

  1. Both audio and visuals start simultaneously
  2. The audio is heard immediately but the video is visible later because the video needs some practice time
  3. The visual starts immediately but audio is heard later because the sound travels less than the speed of light
  4. It depends on the brand of TV
General science

Without green house effect, the average temperature of earth surface would be:

  1. 0°C
  2. -18°C
  3. 5°C
  4. -20°C
General science

The diamond appears lustrous because of:

  1. Reflection
  2. Refraction
  3. Total Internal Reflection
  4. Scattering
General science

Which of the following elements is not a Noble gas?

  1. Argon
  2. Radon
  3. Krypton
  4. Actinium
General science