Q. Haemophilia is mostly associated with
1) Labourers
2) Royal families
3) Miners
4) Sportsmen
Q. Protein which renders a cell less susceptible to attack by viruses is called
1) Actomyosin
2) Chloromycetin
3) Hybridoma
4) Inferon
Q. Which of the following enzymes converts proteins into peptones?
1) Pepsin
2) Trypsin
3) Erepsin
4) Enterokinase
Q. Approximately, how any times each day do our heart valves open and close normally?
1) 10000 times
2) 100000 times
3) 150000 times
4) 200000 times
Q. What is common in AIDS, mumps and poliomyelitis?
1) Young children get affected most readily
2) No effective vaccine has yet been developed for them
3) These are caused by viruses
4) Their germs can be transmitted through blood transfusions
Q. Should cars have bumpers that collapse under impact?
1) Yes, since the offending car should get damaged and pay for the mistake
2) No, since it would be very expensive to get the car repaired
3) NO, since the colliding car would then ram into the occupants and kill them
4) Yes, since they help to absorb the impact of a collision and keep the occupants safe.
Q. Ice cubes are added to a glass of pure water and a glass of pure alcohol. The ice would be
1) At a higher level in water
2) At a higher level in alcohol
3) At the same level in both
4) Floating in water and sinking in alcohol
Q. Which of the following types of radiations is absorbed by the upper layer of the atmosphere?
1) Radio-waves
2) Infrared
3) Visible
4) Ultraviolet
Q. After long periods of use, a gray spot develops on the inside of a bulb. This is because
1) The tungsten filament evaporates and collects there
2) The heat of the bulb scorches the glass at the top
3) Dust inside the bulb condenses on the top
4) Glass undergoes a change due to the heat
Q. Mud houses are cooler in summers and warmer in winters as compared to brick houses because
1) Mud is a good conductor
2) Mud is a bad conductor
3) Mud is a poor insulator
4) Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in w
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