Q. The sound waves in the audible range have Frequencies in the range of -
1) 20 Hz to 20,000 Hz
2) 0.5 Hz to 5 Hz
3) 1 Hz to 10 Hz
4) 20,000 hz to 40,000 Hz
Q. Which of the following stars lies nearest to our solar system?
1) Barnard's Star
2) Alpha Centauri A
3) Sirius A
4) Proxima Centauri
Q. What is the term AGMARK used for?
1) Grading various agricultural commodities
2) Grading battery toys
3) Grading polyester textiles
4) Grading engine lubricating oils
Q. Whose entry into India resulted in the introduction of maize crops in the country?
1) Dutch
2) English
3) French
4) Portuguese
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
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