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




All Questions are from Year - 2018 or older

Question 181 :
The abnormal increase in the total RBC count is referred to as

  1. pneumonia
  2. polycythemia
  3. leucopenia
  4. anaemia
  

Question 182 :
A stone is dropped into water from abridge 44.1 m above the water. Another stone is thrown vertically downward 1 s later. Both strike the water simultaneously. What was the initial speed of the second stone?

  1. 12.25 m/s
  2. 14.75 m/s
  3. 16.23 m/s
  4. 17.15 m/s
  

Question 183 :
Echo is produced due to

  1. reflection of sound
  2. refraction of sound
  3. resonance
  4. none of these
  

Question 184 :
Pascal is the unit for

  1. pressure
  2. thrust
  3. buoyant force
  4. None of these
  

Question 185 :
Which one of the following statements is wrong?

  1. Sound travels in straight line
  2. Sound travels in the form of waves
  3. Sound is a form of energy
  4. Sound travels faster in vacuum than in air
  

Question 186 :
Producer gas is a mixture of

  1. carbon monoxide and nitrogen gas
  2. carbon monoxide and hydrogen gas
  3. carbon monoxide and water vapour
  4. carbon monoxide and nitrous oxide
  

Question 187 :
Pressure is a

  1. scalar quantity
  2. vector quantity
  3. normal force
  4. all the above are wrong
  

Question 188 :
Brass is an example of a

  1. homogenous compound
  2. homogenous mixture
  3. heterogeneous mixture
  4. heterogeneous compound
  

Question 189 :
The life span of human WBC is normally

  1. 12-days
  2. 80-90 days
  3. 100-120 days
  4. 20-30 days
  

Question 190 :
The mercury barometer was invented by

  1. Celsius
  2. Fahrenheit
  3. Torricelli
  4. Bernoulli
  

Question 191 :
When a bicycle travels on a rough surface its speed

  1. increases
  2. decreases
  3. remains the same
  4. none of these
  

Question 192 :
A lens which is thinner at the middles and thicker at the edges is called a lens.

  1. convex
  2. concave
  3. cylindrical
  4. none of these
  

Question 193 :
What is obtained on adding lime to H20?

  1. lime
  2. limestone
  3. slaked lime
  4. quicklime
  

Question 194 :
The force which tries to bring the body back to its mean position is called

  1. deforming force
  2. restoring force
  3. gravitational force
  4. buoyant force
  

Question 195 :
In man ribs are attached to

  1. calvicle
  2. ileum
  3. sternum
  4. scapula
  

Question 196 :
A particle is projected up with an initial velocity of 80 ft/s. The ball will attain height of 96 ft/s from the ground after

  1. 2.0 and 3.0 s
  2. Only at 3.0s
  3. Only at 2.0 s
  4. After 1 and 2 s
  

Question 197 :
Functional activities of a cell are controlled by

  1. nucleus
  2. nucleolus
  3. mitochondria
  4. cytoplasm
  

Question 198 :
Annealing is done to

  1. increase brittleness
  2. increase Transparency
  3. decrease brittleness
  4. increase refractive index
  

Question 199 :
Therm is the unit of

  1. heat
  2. temperature
  3. thermometry
  4. work
  

Question 200 :
The red or Orange coating that forms on the surface of iron when exposed to air and moisture for some time is called

  1. galvanization
  2. electroplating
  3. rust
  4. reduction
  

Question 201 :
Largest gland in human body is

  1. liver
  2. pancreas
  3. pituitary
  4. thyroid
  

Question 202 :
Removal of anthers from flowers is the process which is known as

  1. emasculation
  2. breeding
  3. manuring
  4. fallowing
  

Question 203 :
The process of making soap by the hydrolysis of fats and oils with alkalis is called

  1. hydrolysis
  2. saponification
  3. esterification
  4. none of these
  

Question 204 :
Longest bone is that of

  1. humerus
  2. stapes
  3. femur
  4. radio-ulna
  

Question 205 :
The process of protecting iron by coating with Zinc.

  1. smelting
  2. galvanising
  3. rusting
  4. corrosion
  

Question 206 :
Which part of human brain is more developed in comparison of others?

  1. cerebrum
  2. cerebellum
  3. optic lobes
  4. medulla oblongata
  

Question 207 :
Which one of the following structures closes the respiratory passage during ingestion of food?

  1. larynx
  2. epiglottis
  3. hard palate
  4. soft palate
  

Question 208 :
Phenyl mercuric acetate

  1. reduces transpiration rate
  2. reduces photosynthesis
  3. kills the plant
  4. reduce respiration
  

Question 209 :
Jaundice is a disease of

  1. kidney
  2. pancreas
  3. liver
  4. duodenum
  

Question 210 :
Smog is a combination of

  1. fire and water
  2. smoke and fog
  3. water and smoke
  4. air and water
  
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