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




All Questions are from Year - 2018 or older

Question 271 :
The correct order of electrical conductivity is

  1. AI > Au > Cu > Ag
  2. Cu > Ag > AI > Au
  3. Au > Ag > AI > Cu
  4. Ag > Cu > Au > AI
  

Question 272 :
Sound waves in air are waves.

  1. longitudinal
  2. radio
  3. transverse
  4. electromagnetic
  

Question 273 :
If action and reaction were to act on the same body

  1. the resultant would be zero
  2. the body would not move at all
  3. both ( and ( are correct
  4. neither ( nor ( is correct
  

Question 274 :
Strongest muscle in the body is present in

  1. arm
  2. jaw
  3. thigh
  4. neck
  

Question 275 :
A boat full of iron nails is floating on water in a lake. When the iron nails are removed the water level

  1. rises
  2. falls
  3. remains the same
  4. nothing can be said
  

Question 276 :
Which gland is not associated with humanalimentary canal?

  1. salivary glands
  2. adrenal gland
  3. liver
  4. pancreas
  

Question 277 :
The branch of physics which deals with the study of fluids in motion is called

  1. dynamics
  2. hydrostatics
  3. hydrodynamics
  4. none of these
  

Question 278 :
Vocal cords occur in

  1. pharynx
  2. glottis
  3. bronchial tube
  4. larynx
  

Question 279 :
The National Physical Laboratory is situated at

  1. Kolkata
  2. New Delhi
  3. Bombay
  4. None of these
  

Question 280 :
The only elements having no neutron is

  1. protium
  2. deuterium
  3. tritium
  4. All of these
  

Question 281 :
Which of the following is not a chemical reaction?

  1. Souring of milk
  2. Rusting of iron
  3. Dissolution of sugar in water
  4. Digestion of food in our body
  

Question 282 :
Volume of air inspired and expired with each normal breath is called

  1. tidal volume
  2. inspiratory capacity
  3. total lung capacity
  4. residual volume
  

Question 283 :
Sound waves cannot pass through

  1. a solid-liquid mixture
  2. an ideal gas
  3. a liquid-gas mixture
  4. a perfect vacuum
  

Question 284 :
Study of Algae is called

  1. phycology
  2. mycology
  3. dendrology
  4. mycology
  

Question 285 :
Which of them is not an ore of silver?

  1. Ag2S
  2. AgNO3
  3. AgCI
  4. None of these
  

Question 286 :
Which of the following acid is used in fire extinguishers?

  1. hydrochloric acid
  2. sulphuric acid
  3. nitric acid
  4. oxalic acid
  

Question 287 :
Who first proposed that light was wave-like in character?

  1. Huygens
  2. Newton
  3. Young
  4. Maxwell
  

Question 288 :
Which of the following is the symbol of the metal that occurs in liquid form at ordinary temperature?

  1. Na
  2. Sn
  3. Pb
  4. Hg
  

Question 289 :
The eye lens is a

  1. transparent double-convex lens
  2. transparent double-concave lens
  3. transparent concavo-convex lens
  4. none of these
  

Question 290 :
Percentage of 02 present in inhaled air in man is about

  1. 0.21
  2. 0.78
  3. 0.01
  4. 0.43
  

Question 291 :
Parthenogenesis is a type of

  1. sexual reproduction
  2. asexual reproduction
  3. budding
  4. regeneration
  

Question 292 :
When steam is passed over hot coke it produces

  1. producer gas
  2. synthesis gas
  3. tear gas
  4. coal gas
  

Question 293 :
Which one of the following is called pacemaker of the heart?

  1. SA node
  2. AV node
  3. Chordae tendinae
  4. AV septum
  

Question 294 :
Which of the following non-metals occur in liquid form at room temperature?

  1. bromine
  2. carbon
  3. sulphur
  4. chlorine
  

Question 295 :
Water gas consists of

  1. water vapour and coal dust
  2. a mixture of carbon monoxide and hydrogen
  3. a mixture of carbon monoxide and the nitrogen
  4. water vapour and methane.
  

Question 296 :
Both erythrocytes and leucocytes are formed in the

  1. bone marrow
  2. thymus
  3. arterial walls
  4. lymph nodes
  

Question 297 :
If there were no ultraviolet rays reaching the earth human should suffer from deficiency of

  1. fatty acids
  2. essential amino acids
  3. vitamin D
  4. vitamin E
  

Question 298 :
Evaporation is the process of changing liquid into vapour

  1. at any temperature
  2. above its boiling point
  3. at its boiling point
  4. below its boiling point
  

Question 299 :
Work done upon a body is

  1. a vector quantity
  2. a scalar quantity
  3. always positive
  4. always negative
  
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