saving energy

mcqspedia.com has 5 Question/Answers about Topic saving energy

Energy can be conserved through

Energy can be conserved through
  • A. insulating lofts with fiber glass
  • B. use of lame burn engines
  • C. using catalytic converters
  • D. controlling temperature
  • Correct Answer: Option A

Upon burning, Hydrogen (H2) forms

Upon burning, Hydrogen (H2) forms
  • A. water vapors
  • B. hydrogen oxide
  • C. hydrogen ions
  • D. hydrocarbon
  • Correct Answer: Option A

Methane (CH4) is better fuel than Coal gas because

Methane (CH4) is better fuel than Coal gas because
  • A. it is endothermic
  • B. it is exothermic
  • C. it gives off more heat than coal gas
  • D. it requires very little oxygen to burn
  • Correct Answer: Option C

An efficient source of electricity production is

An efficient source of electricity production is
  • A. to combine hydrogen and oxygen to form water
  • B. to drive generators through steam
  • C. to combine nitrogen with hydrogen
  • D. Both A and B
  • Correct Answer: Option A

LPG is obtained by

LPG is obtained by
  • A. cooling methane
  • B. cooling natural gas
  • C. cooling carbon dioxide
  • D. cooling nitrous oxide
  • Correct Answer: Option B