Sources of Energy : āĻļāĻā§āĻ¤āĻŋā§° āĻā§āĻ¸
1. What is renewable energy ? āĻĒā§ā§°āĻļā§āĻ¨: āĻ¨āĻŦā§āĻā§°āĻŖāĻ¯ā§āĻā§āĻ¯ āĻļāĻā§āĻ¤āĻŋ āĻāĻŋ ?
A. Cannot be used | B. Can be replenished | C. Stored energy | D. Heat energy
Ans / āĻāĻ¤ā§āĻ¤ā§°: B
Explanation: Renewable energy can be naturally replenished. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ āĻļāĻā§āĻ¤āĻŋ āĻĒā§āĻ¨ā§° āĻ¸ā§āĻˇā§āĻāĻŋ āĻā§°āĻŋāĻŦ āĻĒāĻžā§°āĻŋāĨ¤
2. Which is a renewable source ? āĻĒā§ā§°āĻļā§āĻ¨: āĻā§āĻ¨āĻā§ āĻ¨āĻŦā§āĻā§°āĻŖāĻ¯ā§āĻā§āĻ¯ āĻļāĻā§āĻ¤āĻŋā§° āĻā§āĻ¸ ?
A. Coal | B. Petroleum | C. Solar energy | D. Diesel
Ans / āĻāĻ¤ā§āĻ¤ā§°: C
Explanation: Solar energy is unlimited and renewable. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻ¸ā§ā§°ā§āĻ¯ā§° āĻļāĻā§āĻ¤āĻŋ āĻ āĻ¸ā§āĻŽ āĻā§°ā§ āĻĒā§āĻ¨ā§° āĻ¸ā§āĻˇā§āĻāĻŋ āĻšāĻ¯āĻŧāĨ¤
3. What is non-renewable energy ? āĻĒā§ā§°āĻļā§āĻ¨: āĻ āĻ¨āĻŦā§āĻā§°āĻŖāĻ¯ā§āĻā§āĻ¯ āĻļāĻā§āĻ¤āĻŋ āĻāĻŋ ?
A. Reusable energy | B. Cannot be replenished quickly | C. Natural energy | D. Solar energy
Ans / āĻāĻ¤ā§āĻ¤ā§°: B
Explanation: It takes millions of years to form. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĒā§āĻ¨ā§° āĻāĻ āĻ¨ āĻš’āĻŦāĻ˛ā§ āĻŦāĻšā§ āĻ¸āĻŽāĻ¯āĻŧ āĻ˛āĻžāĻā§āĨ¤
4. Example of non-renewable source: āĻĒā§ā§°āĻļā§āĻ¨: āĻ āĻ¨āĻŦā§āĻā§°āĻŖāĻ¯ā§āĻā§āĻ¯ āĻā§āĻ¸ā§° āĻāĻĻāĻžāĻšā§°āĻŖ ?
A. Wind | B. Water | C. Coal | D. Sunlight
Ans / āĻāĻ¤ā§āĻ¤ā§°: C
Explanation: Coal is limited and exhaustible. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ¯āĻŧāĻ˛āĻž āĻ¸ā§āĻŽāĻŋāĻ¤ āĻā§°ā§ āĻļā§āĻˇ āĻšāĻ¯āĻŧāĨ¤
5. Thermal power plant uses: āĻĒā§ā§°āĻļā§āĻ¨: āĻĨāĻžā§°ā§āĻŽā§āĻ˛ āĻĒāĻžā§ąāĻžā§° āĻĒā§āĻ˛āĻžāĻŖā§āĻāĻ¤ āĻāĻŋ āĻŦā§āĻ¯ā§ąāĻšāĻžā§° āĻšāĻ¯āĻŧ ?
A. Water | B. Wind | C. Coal | D. Sunlight
Ans / āĻāĻ¤ā§āĻ¤ā§°: C
Explanation: Coal is burned to generate electricity. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ¯āĻŧāĻ˛āĻž āĻā§āĻŦāĻ˛āĻžāĻ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻā§āĻĒāĻ¨ā§āĻ¨ āĻā§°āĻž āĻšāĻ¯āĻŧāĨ¤
6. Hydroelectric power is from: āĻĒā§ā§°āĻļā§āĻ¨: āĻāĻ˛āĻŦāĻŋāĻĻā§āĻ¯ā§ā§ āĻļāĻā§āĻ¤āĻŋ āĻ’ā§° āĻĒā§°āĻž āĻĒā§ā§ąāĻž āĻ¯āĻžāĻ¯āĻŧ ?
A. Coal | B. Flowing water | C. Air | D. Sun
Ans / āĻāĻ¤ā§āĻ¤ā§°: B
Explanation: Flowing water rotates turbines. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĒāĻžāĻ¨ā§ā§° āĻĒā§ā§°āĻŦāĻžāĻšā§ āĻāĻžā§°āĻŦāĻžāĻāĻ¨ āĻā§ā§°āĻžāĻ¯āĻŧāĨ¤
7. Wind energy is energy from: āĻĒā§ā§°āĻļā§āĻ¨: āĻŦāĻ¤āĻžāĻš āĻļāĻā§āĻ¤āĻŋ āĻāĻŋāĻšā§° āĻĒā§°āĻž āĻĒā§ā§ąāĻž āĻ¯āĻžāĻ¯āĻŧ ?
A. Sun | B. Moving air | C. Coal | D. Water
Ans/ āĻāĻ¤ā§āĻ¤ā§°: B
Explanation: Wind turbines convert air movement into energy. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŦāĻ¤āĻžāĻšā§ āĻļāĻā§āĻ¤āĻŋ āĻā§āĻĒāĻ¨ā§āĻ¨ āĻā§°ā§āĨ¤
8. Biogas is produced from: āĻĒā§ā§°āĻļā§āĻ¨: āĻŦāĻžāĻ¯āĻŧā§āĻā§āĻ āĻāĻŋāĻšā§° āĻĒā§°āĻž āĻā§āĻĒāĻ¨ā§āĻ¨ āĻšāĻ¯āĻŧ ?
A. Petrol | B. Organic waste | C. Natural gas | D. Oxygen
Ans / āĻāĻ¤ā§āĻ¤ā§°: B
Explanation: Organic waste decomposes to produce gas. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻā§ā§ą āĻāĻŦā§°ā§āĻāĻ¨āĻž āĻĒāĻāĻŋ āĻā§āĻ āĻšāĻ¯āĻŧāĨ¤
9. Nuclear energy comes from: āĻĒā§ā§°āĻļā§āĻ¨: āĻĒāĻžā§°āĻŽāĻžāĻŖā§ąāĻŋāĻ āĻļāĻā§āĻ¤āĻŋ āĻ’ā§° āĻĒā§°āĻž āĻĒā§ā§ąāĻž āĻ¯āĻžāĻ¯āĻŧ ?
A. Heat | B. Nuclear reactions | C. Wind | D. Water
Ans / āĻāĻ¤ā§āĻ¤ā§°: B
Explanation: Energy released from atomic reactions. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻĒāĻžā§°āĻŽāĻžāĻŖā§ąāĻŋāĻ āĻŦāĻŋāĻā§ā§°āĻŋāĻ¯āĻŧāĻžā§° āĻĒā§°āĻž āĻļāĻā§āĻ¤āĻŋ āĻĒā§ā§ąāĻž āĻ¯āĻžāĻ¯āĻŧāĨ¤
10. Fossil fuel is formed from: āĻĒā§ā§°āĻļā§āĻ¨: āĻĢāĻāĻŋāĻ˛ āĻāĻ¨ā§āĻ§āĻ¨ āĻāĻŋāĻšā§° āĻĒā§°āĻž āĻāĻ āĻ¨ āĻšāĻ¯āĻŧ ?
A. Plants only | B. Dead organisms | C. Renewable sources | D. Gas
Ans / āĻāĻ¤ā§āĻ¤ā§°: B
Explanation: Formed from dead plants and animals over millions of years. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻŽā§āĻ¤ āĻā§ā§ąā§° āĻĒā§°āĻž āĻŦāĻšā§ āĻŦāĻā§°āĻ¤ āĻāĻ āĻ¨ āĻšāĻ¯āĻŧāĨ¤