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Playbook

Energy Sources

2 q · 0% HARD across 10 years. Conventional vs non-conventional, bio-mass identification. Don't over-invest — but don't skip either, it's a recall freebie.

questions in the bank
2
tagged HARD
0%
subtopic(s)
1
worked examples
2

When you’ll see it

Conventional vs non-conventional energy source identification.

How this chapter is tested

2 q across 10 years. Conventional: coal, petroleum, natural gas. Non-conventional: solar, wind, tidal, geothermal, biomass, hydro (sometimes counted as conventional, sometimes not — defer to the option set). Read once, recognise the categories, done.

The sub-skills

The rules and habits that decide whether you get a question right.

  • Conventional vs non-conventional

    Conventional = fossil fuels (coal, oil, gas). Non-conventional / renewable = solar, wind, tidal, geothermal, biomass.

  • Biomass identification

    Biomass = anything biologically derived burned for energy: wood, dung, agricultural waste, biofuels. Coal is NOT biomass (it's fossilised plant matter, but classified as conventional / fossil).

2 worked examples from the bank

Real past-year questions illustrating the playbook. Click to reveal options + solution.

Example 1Energy SourcesEASY
Which one of the following is a non-conventional source of energy?

[Q147 · Apr · 2025]

Example 2Energy SourcesEASY
Which one of the following is not a bio-mass energy source ?

[Q88 · Apr · 2021]

Traps to expect

Distractor shapes specific to this chapter. The page-wide Traps section covers the bank-level patterns.

  • Coal as biomass

    Coal originated from ancient plant matter, but it's classified as a fossil fuel / conventional, NOT biomass. The trap option lists coal as bio-mass.

Drill every energy sources question

2 questions from the bank, scoped to the named subtopic.

Drill the 2 questions

Related playbooks

Often paired with this one — drill these next if you found the worked examples above tractable.