Question bank

SECTION C – Descriptive / Long Answer / Numerical Questions (25 Questions) 1. Explain the need for renewable energy. Model Answer: Renewable energy is needed because conventional sources such as coal, diesel, and gas are limited and polluting. Renewable sources like solar and wind reduce greenhouse gas emissions, improve energy security, support sustainable development, and […]

SECTION B – Short Answer Questions (35 Questions) 1. Define energy. Model Answer: Energy is the capacity to do work. 2. State the first law of thermodynamics. Model Answer: Energy can neither be created nor destroyed; it can only be converted from one form to another. 3. What are renewable energy sources? Give two examples. […]

SECTION A – MCQs Questions (40 Questions) 1. Energy is defined as: a) Rate of workb) Capacity to do workc) Force × velocityd) Power per unit time Answer: b) Capacity to do workModel Answer: Energy is the capacity to do work. 2. According to the first law of thermodynamics, energy: a) Can be createdb) Can […]