Spacecraft thermal control systems MCQs – Aerospace

1. What is the primary function of a spacecraft’s thermal control system?
(A) To manage and maintain the spacecraft’s temperature within acceptable limits
(B) To provide propulsion for the spacecraft
(C) To control the spacecraft’s attitude
(D) To generate power for onboard systems

2. Which component of a spacecraft thermal control system is responsible for radiating excess heat into space?
(A) Radiator
(B) Heat Pipe
(C) Insulation
(D) Thermal Blanket

3. What is the main purpose of thermal insulation in spacecraft?
(A) To prevent heat transfer between components
(B) To provide structural support
(C) To enhance propulsion efficiency
(D) To generate power

4. Which system is used to transfer heat from a spacecraft component to a radiator?
(A) Heat Pipe
(B) Thermoelectric Generator
(C) Solar Panel
(D) Thruster

5. What material is commonly used for spacecraft thermal blankets to provide insulation?
(A) Multi-Layer Insulation (MLI)
(B) Aluminum Alloy
(C) Titanium
(D) Carbon Fiber

6. Which thermal control method involves using mechanical devices to adjust the amount of heat radiated?
(A) Variable Radiator
(B) Fixed Radiator
(C) Heat Pipe
(D) Thermal Blanket

7. What is the role of a thermal control system’s thermal radiator?
(A) To release excess heat into space
(B) To insulate spacecraft components
(C) To transfer heat to a heat pipe
(D) To generate electrical power

8. Which device uses the phase change of a material to absorb or release heat?
(A) Phase Change Material (PCM)
(B) Heat Pipe
(C) Radiator
(D) Thermal Blanket

9. What is the main advantage of using heat pipes in spacecraft thermal control systems?
(A) High thermal conductivity and efficient heat transfer
(B) Low weight
(C) Low cost
(D) High insulation capability

10. Which component of the thermal control system adjusts the temperature of spacecraft components by radiating heat?
(A) Radiator
(B) Heat Pipe
(C) Insulation
(D) Thermal Blanket