Q. Which of the following languages is the word TSUNAMI derived from?
1) Sinhalese
2) Korean
3) Chinese
4) Japanese
Q. Which one of the following is a widely used solid lubricant?
1) Graphite
2) Sodium
3) Lithium
4) Zinc
Q. Which one of the following is a major constituent of petrol?
1) Pentane (C5 H12)
2) Octane (C8 H18)
3) Methane (CH4)
4) Hexane (C6 H14)
Q. Which one of the following gases is mainly responsible for the GREENHOUSE EFFECT?
1) Sulphur dioxide
2) Carbon mono-oxide
3) Hydrogen sulphide
4) Carbon dioxide
Q. Which one of the following causes of environmental pollution cannot be attributed to human beings?
1) Uncontrolled growth of the human population
2) Rapid industrialisation
3) Rapid urbanisation
4) Volcanic eruptions
Q. What do you understand by the term 'Absolute Pressure'?
1) It is the atmospheric pressure at the mean sea level
2) It is the atmospheric pressure expressed in kg/cm2
3) It is the pressure equal to the algebraic sum of atmospheric and gauge pressures
4) It is the pressure as seen on the gauge of a pressure-measuring instrument
Q. The efficiency of a heat engine is 40% If 10,000 joules of heat energy are supplied to it, then the useful work done by the engine would be -
1) 40,000 Joules
2) 10,000 Joules
3) 25,000 Joules
4) 4,000 Joules
Q. A body of mass 10 kg accelerates from rest at the rate of 3 m /sec2. What distance would the body travel in 10 seconds?
1) 250 metres
2) 100 metres
3) 150 metres
4) 200 metres
Q. The term acceleration means -
1) Maximum speed of a vehicle
2) Rate of change of time
3) Rate of change of velocity
4) Rate of change of distance
Q. The load on a spring per unit deflection is called -
1) Stress
2) Flexibility
3) Stiffness
4) Strain
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