i. In solids, heat is transferred by




... Answer is (b)  Conduction
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ii. What happens to the thermal conductivity of a wall if its thickness is doubled




... Answer is (c)  Becomes half
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iii. Metals are good conductors of heat due to




... Answer is (a) Free electrons
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iv. In gases, heat s mainly transferred by




... Answer is (c) Convention
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v. Convention of heat is the process of heat transfer due to




... Answer is (c) Upward movement of molecules
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vi. False ceiling is done to




... Answer is (d) insulate the ceiling
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vii. Rooms are heated using gas heaters by :




... Answer is (b) Convention and radiation
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viii. Land breezes blow from




... Answer is (c)  Land to sea during the night
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ix. Which of the following is a good radiator for heat




... Answer is (b)  A dull black surface
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VIP Note: If you have Learned the above MCQs, then examine yourself by taking this Simple MCQS Quiz (Click here to play the Quiz)


 
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