Friday 26 September 2008

MENTAL ABILITY TEST PAPER

Q.1. A mixture of two or more metals is called

(a) An amalgam

(b) An alkali metal

(c) A noble element

(d) An alloy

(e) A hard metal

Q.2. In refrigerators, the liquid used as refrigerant is

(a) Liquid carbon dioxide

(b) Liquid nitrogen

(c) Liquid ammonia

(d) Super cooled water

(e) Aerated water

Q.3. The acid present in lemons and oranges is

(a) Acetic acid

(b) Hydrochloric acid

(c) Citric acid

(d) oxalic acid

(e) Sulphuric acid

Q.4. A missile when projected into the air follows

(a) An elliptical path

(b) A straight line path

(c) A parabolic path

(d) A hyperbolic path

(e) A circular path

Q.5. Water is not effective in extinguishing a fire caused by petrol, because

(a) The flame is too hot for water to cool it down

(b) Water and petrol react chemically

(c) Petrol and water are miscible with each other.

(d) Water and petrol are immiscible with each other Petrol forms the upper layer andcontinues to burn

(e) Petrol makes the water evaporate very soon

Q.6. The richest source of protein is

(a) Soyabean

(b) Meat

(c) Milk

(d) Eggs

(e) Wheat

Q.7. Sound waves cannot travel through

(a) Water

(b) Steel

(c) Vacuum

(d) Air

(e) Plastic

Q.8. Black soil is an ideal soil for

(a) Wheat

(b) Rice

(c) Cotton

(d) Millets

(e) Cane sugar

Q.9. Atmospheric pressure is measured with a

(a) Hydrometer

(b) Barometer

(c) Hygrometer

(d) Altimeter

(e) Voltmeter

Q.10. Food is cooked faster in a pressure cooker because

(a) Heat cannot escape from the cooker

(b) Steam is hotter than the boiling water

(c) High pressure raises the boiling point of water

(d) In the cooker, water starts boiling at a lower temperature

(e) None of these

Q.11. The three primary colours are

(a) Blue, green and red

(b) Blue, yellow and red

(c) Yellow, orange and red

(d) Violet, indigo and blue

(e) Blue, yellow and green

Q.12. The device used for converting mechanical energy into electrical energy is called

(a) A cell

(b) A transformer

(c) A dynamo

(d) An electric motor

(e) A generator

Q.13. Hard water does not lather well with soap because

(a) It contains carbonates of calcium and magnesium

(b) It is highly coloured

(c) It contains suspended impurities

(d) It contains sodium chloride

(e) It dissolves the soap

Q.14. Common salt is

(a) Sodium chloride

(b) Sodium bicarbonate

(c) Magnesium carbonate

(d) Sodium carbonate

(e) Calcium chloride

Q.15. Ozone is important to mankind because it

(a) Releases hydrogen in the atmosphere

(b) Maintains the temperature of the earth

(c) Creates a protective coverage against ultraviolet rays

(d) Releases oxygen in the air

(e) Destroys poisonous gases

Q.16. Cataract, a discease of the eye is due to

(a) Lens turning opaque

(b) Damage to cornea

(c) Tearing of retina

(d) Dislodgement of retina

(e) None of these

Q.17. A doctor advised a patient not to eat the things containing sugar. He advised on accountof the symptoms of the disease

(a) Cancer

(b) Diabetes

(c) AIDS

(d) Allergy

(e) None of these

Q.18. The stars appear twinkling because:

(a) On account of their greater distance from the earth

(b) Their light before reaching us passes through different medium

(c) Their lights takes too much time before reaching us

(d) These are situated very high above our heads

(e) None of these

Q.19. Sudden falling of the mercury in barometer predicts that weather will be

(a) Still and stable

(b) Rainy

(c) Excessive hot

(d) Stormy

(e) None of these

Q.20. On which scale is the temperature of the human body measured by the Doctors?

(a) Kelvin

(b) Celsius

(c) Fahrenheit

(d) Reumer

(e) None of these

Q.21. The instrument used to measure the speed of the wind is

(a) Altimeter

(b) Anemometer

(c) Chronometer

(d) Dosimeter

(e) None of these

Q.22. Who defined the law of Gravitation?

(a) Newton

(b) Anemometer

(c) Chronometer

(d) Dosimeter

(e) None of these

Q.23. ‘IC’ in computers stands for

(a) Integrated Charge

(b) Integrated Current

(c) Integrated Circuits

(d) Interior circuit

(e) None of these

Q.24. In a rechargeable cell, what kind of energy is stored within the cell?

(a) Electrical energy

(b) Potential energy

(c) Chemical energy

(d) Kinetic energy

(e) None of these

Q.25. The property of a body that stops it from coming into motion is called

(a) Equilibrium

(b) Momentum

(c) Intertia

(d) Acceleration

(e) None of these

Q.26. The by-product obtained by soap industry is

(a) Caustic Soda

(b) Glycerol

(c) Naphthalene

(d) Caustic Potash

(e) None of these

Q.27. Ripe grapes contain

(a) Fructose

(b) Sucrose

(c) Galactose

(d) Glucose

(e) None of these

Q.28. Which of the following is pure water?

(a) Rain water

(b) Filter water

(c) Tube-well water

(d) Distilled water

(e) None of these

Q.29. Which silver salt is used for making film for photography?

(a) Silver bromide

(b) Silver chloride

(c) Silver sulphate

(d) Silver nitrate

Q.30. Which is the reproductive organ of a plant?

(a) Fruit

(b) Seed

(c) Flower

(d) Stem

(e) Buds

ANSWER 1(c) 2(d) 3(b) 4(b) 5(e) 6(a) 7(c) 8(a) 9(b) 10(d) 11(c)12(d) 13(a) 14(b) 15(c) 16(b) 17(a) 18(a) 19(c) 20(d) 21(b) 22(b)23(d) 24(b) 25(a) 26(c) 27(a) 28(c) 29(d) 30(b)

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