Class 7 Science MCQs - Chapter 11
Heat Transfer Quiz Questions & Answers PDF Download - 3
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The Quiz: The rise of warm air and fall of cool air in order to fill the space forms a; "Heat Transfer" App (iOS, Android) with answers: Conduction current; Radiation current; Convection current; Air current; to learn online certification courses. Study Convection Current and Weather MCQ Questions, download Amazon eBook (Free Sample) for online teaching certification programs.
Heat Transfer Exam Questions and Answers PDF Download: Test 3
The rise of warm air and fall of cool air in order to fill the space forms a
- radiation current
- conduction current
- convection current
- air current
Greenhouse gases effect on earth's atmosphere is increased by
- CFCs (chlorofluorocarbons)
- air conditioners
- perfumes
- burning fossil fuels
Handles of saucepans and other cooking utensils are
- thermal conductors
- thermal insulators
- electrical conductors
- metalloids
'Metals' are the best
- insulators of heat
- conductors of heat
- conductors of light
- insulators of electricity
Radiation is prevented by
- glass walls
- silver painted glass walls
- black painted glass walls
- metal walls
Class 7 Science Mock Tests
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