General Science (Biology-Physics-Chemestry) Question & Answers MCQ's




All Questions are from Year - 2018 or older

Question 1 :
The amount of substance in the SI system of units is represented by

  1. candela
  2. mole
  3. weight
  4. kilogram
  

Question 2 :
A body which allows most of the light to pass through it is called a

  1. transparent body
  2. opaque body
  3. translucent body
  4. none of these
  

Question 3 :
Which of the following acid is used by goldsmiths for cleaning gold and silver ornaments?

  1. HCL
  2. H2SO4
  3. HNO3
  4. H3PO4
  

Question 4 :
The main constituent of cement is

  1. SiO2
  2. CaO
  3. CaSO4
  4. Al203
  

Question 5 :
A rider on horse back falls when horse starts running all of a sudden because

  1. rider is taken back
  2. rider is suddenly afraid of falling
  3. inertia of rest keeps the upper part of body at rest whereas lower part of the body moves forward with the horse
  4. None of the above
  

Question 6 :
Potential energy of the bob is maximum

  1. at the mean position
  2. at the extreme position
  3. between the mean position and extreme positions
  4. none of these
  

Question 7 :
A lustrous non-metal is

  1. diamond
  2. iodine
  3. sulphur
  4. phosphorus
  

Question 8 :
When the light is very bright

  1. the iris makes the pupil expand
  2. the iris makes the pupil contract
  3. the iris and the pupil remain as they are
  4. none of these
  

Question 9 :
It is difficult to walk on ice because of

  1. absence of friction
  2. absence of inertia
  3. more inertia
  4. more friction
  

Question 10 :
ATP formation during photosynthesis is known as

  1. phosphorylation
  2. photophosphorylation
  3. oxidative phosphorylation
  4. substrate level phosphorylation
  

Question 11 :
The resistivity of a wire

  1. increase with the length of the wire
  2. decreases with the area of cross-section
  3. decreases with the length and increases with the cross-section of a wire
  4. None of the above
  

Question 12 :
Axial skeleton in man is made up of

  1. 126 bones
  2. 100 bones
  3. 103 bones
  4. 80 bones
  

Question 13 :
Waves produced by supersonic jet planes are

  1. shock waves
  2. seismic waves
  3. infrasonics
  4. none of these
  

Question 14 :
A pulse is a wave

  1. of high duration
  2. of short duration
  3. which travels in vacuum only
  4. which travels in solids only
  

Question 15 :
Which of the following is connected with transport of water in plants?

  1. phloem
  2. xylem
  3. epidermis
  4. cambium
  

Question 16 :
Skull of man is made up of

  1. 10 bones
  2. 22 bones
  3. 30 bones
  4. 24 bones
  

Question 17 :
The velocity of a body at rest is always

  1. unity
  2. negative
  3. zero
  4. infinite
  

Question 18 :
The largest number of cells bodies of neurons in our body is found in

  1. brain
  2. spinal cord
  3. tongue
  4. retina
  

Question 19 :
Aluminium is extracted from

  1. hematite
  2. bauxite
  3. calamine
  4. magnetite
  

Question 20 :
The narrowest and most numerous tubes of lungs are termed as

  1. bronchus
  2. alveoli
  3. bronchioles
  4. hilum
  

Question 21 :
A specific function of light energy in the process of photosynthesis is to

  1. activate chlorophyll
  2. split water
  3. synthesis glucose
  4. reduce CO2
  

Question 22 :
The unit for the rate of change of velocity will be

  1. m/s
  2. m/s2
  3. Ns
  4. N/s
  

Question 23 :
Impulse is

  1. a scalar quantity
  2. a vector quantity
  3. neither a scalar nor a vector
  4. sometimes a scalar and sometimes a vector
  

Question 24 :
The function of vitamin K is in

  1. regulation of calcium and phosphorus metabolism
  2. blood clotting
  3. respiration
  4. carbohydrate metabolism
  

Question 25 :
Which one of the following is not correct about cathode rays?

  1. They are deflected to the positive plate of electromagnetic field
  2. The nature of cathode rays does not depend upon the nature of gas taken in the discharge tube
  3. The nature of cathode rays depends upon the nature of gas taken in the discharge tube
  4. Cathode rays are made up of material particles
  

Question 26 :
The two kidneys lie

  1. at the level of ovaries
  2. at the same level
  3. left kidney at a higher level than the right one
  4. right kidney at a higher level than the left one
  

Question 27 :
The term `rancidity' represents

  1. acid rain
  2. oxidation of fatly food
  3. rottening of fruit
  4. fading of coloured clothes in the sun
  

Question 28 :
Glass used for making wind screens of automobiles is

  1. hard glass
  2. photo chromatic glass
  3. safety glass
  4. optical glass
  

Question 29 :
Which of the following alloys contains Tin?

  1. brass
  2. solder
  3. duralumin
  4. steel
  

Question 30 :
Maximum threat to the world is from (among the following)

  1. global warming
  2. ozone hole
  3. water pollution
  4. soil erosion
  
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