General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part23 : 21 to 25

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

21.A liquid rises in a syringe when its piston is pulled up because :

of the property of surface tension

of capillary action

of the action of atmospheric pressure

there is a force of cohesion between the liquid molecules and the glass syringe

22.""Gobar gas"" contains mainly :

carbon dioxide

acetuylene

ethylene

methane

23.Stainless steel is an alloy of :

iron, carbon and nickel

iron and manganese

iron, chromium and zinc

iron, chromium and nickel

24.Which of the following statements about ""dry ice"" are correct ? 1. It is a useful refrigerant.2. On heating, it turns into a liquid.3. It has acidic properties.4. It causes burns when pressed against the skin

1 and 3

1, 2 and 3

2 and 4

1, 3 and 4

25.Consider the following statements with reference to X-rays : 1. They produce heat when absorbed by matter2. They are generated when fast moving electrons strike a metal target 3. They can penetrate through a thin sheet of aluminium Which of the statements given above are correct ?

1, 2 and 3

1 and 2

2 and 3

1 and 3

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

Opportunity is missed by most people because it is dressed in overalls and looks like work.- Thomas Edison

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General Knowledge Questions And Answers :: General Science: part23

General Science QUESTIONS AND ANSWERS

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