Ocean Thermal Energy Conversion MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 29, 2025

1. : By _____ the ocean thermal energy conversion (OTEC) is produced.
(A) Temperature difference
(B) Potential difference
(C) Energy difference
(D) Kinetic difference

2. : OTEC is first produced in _____
(A) 1890
(B) 1926
(C) 1880
(D) 1930

3. : In year _____ OTEC is constructed.
(A) 1920
(B) 1926
(C) 1922
(D) 1924

4. : _____ is the by-product of the ocean thermal energy conversion.
(A) Hot water
(B) Gases
(C) Chemicals
(D) Cold water

5. : There are ____ types of OTEC plants.
(A) 3
(B) 2
(C) 1
(D) 4

6. : Fluid having ___ are used by the closed-cycle systems.
(A) High boiling points
(B) High viscosity
(C) Low boiling points
(D) Low viscosity

7. : Through a _______ to vaporize the fluid, warm surface sea water is pumped.
(A) Condenser
(B) Generator
(C) Evaporator
(D) Heat exchanger

8. : The function of a heat exchanger is that it ____ the vapor into a liquid which is recycled.
(A) Evaporates
(B) Heats
(C) Cools
(D) Condenses

9. : ____ surface water is used by open-cycle OTEC directly to generate electricity.
(A) Hot
(B) Icy
(C) Cool
(D) Warm

10. : ____ are left by the steam.
(A) Copper
(B) Aluminium
(C) Salts
(D) Silver

11. : ____ water is produced by an open cycle system.
(A) Chlorinated
(B) Impure
(C) Contaminated
(D) Desalinated

12. : The sea water enters a vacuum chamber and flashes evaporated in the ____ method.
(A) Hybrid OTEC
(B) Open cycle system
(C) Closed cycle system
(D) Neither closed nor open system

13. : _____ technique generates power from the hydroelectric turbine, depending upon the embodiment.
(A) Closed cycle
(B) Steam lift pump
(C) Hybrid
(D) Open cycle