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




All Questions are from Year - 2018 or older

Question 91 :
Tidal volume of air in a normal healthy man during inspiration is about

  1. 300 — 400 ml
  2. 500 — 700 ml
  3. 900 —1000 ml
  4. 100 — 250 ml
  

Question 92 :
The gas used in the welding and cutting of metals is

  1. ethane
  2. ethene
  3. ethyne
  4. propene
  

Question 93 :
Pepsinogen is secreted by

  1. gastric glands
  2. intestinal glands
  3. chief cells
  4. parietal cells
  

Question 94 :
Which type of respiratory organs are present in spiders and scorpions?

  1. book lungs
  2. gill books
  3. gills
  4. lungs
  

Question 95 :
Which chamber of the heart has the thickest 2 muscular walls

  1. right atrium
  2. left atrium
  3. right ventricle
  4. left ventricle
  

Question 96 :
Which part of mammalian brain controls the muscular co-ordination?

  1. cerebrum
  2. cerebellum
  3. corpus callosum
  4. medulla oblongata
  

Question 97 :
In a closed circulatory system blood is completely enclosed within

  1. the skeleton
  2. sinuses
  3. vessels
  4. hearts
  

Question 98 :
Friction between any two objects is due to

  1. attraction between them
  2. repulsion between them
  3. some adhesive forces between them
  4. irregularities on the surfaces
  

Question 99 :
When the speed of a moving body is doubled

  1. its acceleration is doubled
  2. its momentum is doubled
  3. its kinetic energy is doubled
  4. its potential energy is doubled
  

Question 100 :
Scattering of light by colloidal particles is known as

  1. Tyndall effect
  2. Brownian motion
  3. reflection
  4. rectilinear propagation
  

Question 101 :
Ohm's law is true

  1. for gases at low temperature
  2. for metallic conductor
  3. for electrolytes when current passes through them
  4. for diode when current flows
  

Question 102 :
Male mosquito does not carry malarial parasite because:

  1. it is too small to bite man.
  2. it lacks the modified mouth parts
  3. malarial parasites cannot reproduce in them.
  4. female mosquito is more deadly
  

Question 103 :
Evaporation of liquid occur at

  1. boiling point
  2. fixed temperature lower than the boiling point
  3. all temperature
  4. None of the above
  

Question 104 :
The process of the escape of liquid from the tip of uninjured leaf or through hydathodes is called

  1. transpiration
  2. guttation
  3. evapo-transpiration
  4. evaporation
  

Question 105 :
Which one of the following has the smallest size?

  1. Al
  2. Al+
  3. A1+2
  4. A1+3
  

Question 106 :
The reabsorption of glucose in a nephron occurs in

  1. loop of Henle
  2. first half of proximal tubule
  3. distal convoluted tubule
  4. proximal part of collecting ducts
  

Question 107 :
The most abundant element in the universe is

  1. helium
  2. oxygen
  3. silicon
  4. hydrogen
  

Question 108 :
The real bleaching agent present in bleaching powder is

  1. chlorine
  2. oxygen
  3. oxygen
  4. CaO
  

Question 109 :
The frequency of a wave is 5 Hz. It refers to (type of wave)

  1. ultrasonics
  2. microwaves
  3. infrasonics
  4. radio waves
  

Question 110 :
The laws of reflection are true for

  1. the plane mirror only
  2. the concave mirror only
  3. the convex mirror only
  4. all reflecting surfaces
  

Question 111 :
The sharp pain caused by the sting of an ant is due to

  1. malic acid
  2. nitric acid
  3. formic acid
  4. lactic acid
  

Question 112 :
Which of the following is different from others?

  1. speed
  2. density
  3. force
  4. time
  

Question 113 :
Which of the following is not an example of a selectively permeable membrane?

  1. plasma lemma
  2. cell Wall
  3. mitochondria! membrane
  4. chloroplast membrane
  

Question 114 :
Among metals the poorest conductor of heat is

  1. lead
  2. tin
  3. bismuth
  4. mercury
  

Question 115 :
A gas can be liquefied by

  1. lowering the temperature
  2. increasing the temperature
  3. increasing the pressure
  4. increasing the pressure and lowering the temperature
  

Question 116 :
When the right ventricle of heart contracts the blood goes to

  1. all parts of the body
  2. Pulmonary arteries
  3. aorta
  4. lungs
  

Question 117 :
A metal which melts on the palm

  1. potassium
  2. sodium
  3. gallium
  4. zinc
  

Question 118 :
The middle vascular coat that darkens the eye chamber and prevents refraction by absorbing the light rays is

  1. choroid
  2. sclera
  3. retina
  4. cornea
  

Question 119 :
Vitamin C is an organic acid known as

  1. ascorbic acid
  2. citrus acid
  3. glycolic acid
  4. acetic acid
  

Question 120 :
Which one of the following is the most common type of transpiration?

  1. stomata!
  2. lenticular
  3. foliar
  4. cuticular
  
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