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Home » Past Papers » Aptitude Test - 22
Hassan
1.One of the main function of the earth’s ozone layer is to:
A. Prevent global warming
B. Filter out ultraviolet rays
C. Absorb pollution
D. Prevent global warming
2. Lock Jaw, i.e., difficulty in opening the mouth is a symptom of :
A. Cholera
B. Plague
C. Tetanus
D. Cholera
3.Which of the following pairs is incorrect?
A. Plague-rats
B. Rabies-dog
C. Tapeworm-pig
D. Plague-rats
4.Ricketts is a disease of the:
A. Bones
B. Tissue
C. Muscles
D. Bones
5.Which of the following statements is correct?
A. Pulmonary artery carries pure blood
B. Pulmonary artery carries impure blood
C. Pulmonary vein carries impure blood
D. Pulmonary artery carries pure blood
6.Enzymes help in :
A. Respiration
B. Digestion of food
C. Immune system
D. Respiration
7.Myopia is a disease connected with :
A. Ears
B. Eyes
C. Lungs
D. Ears
8.Leukemia is a disease of the :
A. Lungs
B. Blood
C. Skin
D. Lungs
9.Short-sightedness can be corrected by using :
A. Convex lens
B. Concave lens
C. Convex-concave lens
D. Convex lens
10.Trachoma is a disease of the :
A. Liver
B. Eyes
C. Lungs
D. Liver
11.German Silver is an alloy of:
A. Zn + Ni
B. Cu + Zn
C. Cu + Ni
D. Zn + Ni
12. The deepest place on earth is :
A. Trench
B. Mariana Trench
C. Mangrove
D. Trench
13. Twinkling of stars is caused by :
A. Reflection of light
B. Polarization of light
C. refraction of light
D. Reflection of light
14.A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect :
A. Current
B. Voltage
C. nuclear Radiation
D. Current
15.A body can escape the gravitational pull of the earth if it is thrown up with a velocity of:
A. 25 miles per sec
B. 60 miles per sec
C. 7 miles per sec
D. 25 miles per sec
16.Night vision is possible with the help of :
A. Red light
B. Violet light
C. Ultra violet Light
D. Red light
17.Which gas is safe and an effective extinguisher for all confined fires?
A. Nitrogen dioxide
B. Carbon dioxide
C. Sulphur dioxide
D. Nitrogen dioxide
18.Which one of the following elements the drum of a Photostat machine is made up of:
A. Aluminium
B. Selenium
C. Barium
D. Aluminium
19.The most important stimulant in tea leaves is:
A. Brucine
B. Caffeine
C. Phenylalanine
D. Brucine
20.Which part of the camera is analogue to the retina in the human eye?
A. Lens
B. Film
C. Shutter
D. Lens
21.When a person enters a dark room from bright light he is not able to see clearly for a little while because the:
A. Eye is unable to adjust itself immediately
B. Retina becomes insensitive momentarily
C. Iris is unable to dilate the pupil immediately
D. Eye is unable to adjust itself immediately
22.What is the average adult pulse rate?
A. 140-150
B. 115-125
C. 72-80
D. 140-150
23.The beautiful color patterns exhibited by a peacock in its tail feathers are due to :
A. Selective absorption of light
B. Selective reflection of light
C. Sinterference of light
D. Selective absorption of light
24.A lake starts freezing because of the cold atmosphere. It will first freeze :
A. At the bottom
B. In the middle part
C. At the top surface
D. At the bottom
25.The sun appears red at sunrise and sunset while it appears white at noon, because :
A. Of refraction
B. It is cooler at sunrise and at sunset
C. Of scattering of light due to dust particles and air molecules
D. Of refraction
26.An astronaut inside a spacecraft is in a state of weightlessness. This implies that :
A. The mass of the astronaut is reduced to zero
B. Gravity inside the space craft ceases to act
C. the astronaut and the space craft are both in a free-falling state
D. The mass of the astronaut is reduced to zero
27.An iceberg is floating in sea. How much of its mass will remain above the surface of water?
A. One tenth
B. One fifth
C. One Fourth
D. One tenth
28.Most of the ozone in the atmosphere is concentrated in the :
A. Mesosphere
B. Troposphere
C. Stratosphere
D. Mesosphere
29.The cow’s milk contains how much amount of water in terms of percentage?
A. 60%
B. 80%
C. 90%
D. 60%
30. The Green House Effect is caused by an excess of :
A. Carbon dioxide
B. Carbon monoxide
C. Carbon tetra oxide
D. Carbon dioxide
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