MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Rocket Propulsion knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the approximate number of species or compounds present in the exhaust for a solid propellant rocket engine? |
| A. | 10 |
| B. | 50 |
| C. | 100 |
| D. | 200 |
| Answer» C. 100 | |
| 2. |
Combustion efficiency in liquid propellant rocket engines __________ with an increase in combustion temperature. |
| A. | increases |
| B. | decreases |
| C. | doesn t change |
| D. | oscillates |
| Answer» B. decreases | |
| 3. |
Energy release efficiency is also called as ___________ |
| A. | isentropic efficiency |
| B. | polytropic efficiency |
| C. | propulsive efficiency |
| D. | combustion efficiency |
| Answer» E. | |
| 4. |
Out of the following products of the reaction of hydrogen and oxygen, which of them is unstable? |
| A. | Hydrogen |
| B. | Hydrogen peroxide |
| C. | Hydroxyl |
| D. | Water |
| Answer» C. Hydroxyl | |
| 5. |
If the energy balance in the chemical reaction within the thrust chamber is thought of as a two-step process, what is the initial step in the process? |
| A. | Isothermal chemical reaction at the reference temperature |
| B. | Isentropic chemical reaction at the reference temperature |
| C. | Adiabatic chemical reaction at the reference temperature |
| D. | Heating of gases with the energy release from the chemical reaction |
| Answer» B. Isentropic chemical reaction at the reference temperature | |
| 6. |
The heat created by the combustion in the thrust chamber of a chemical rocket engine equals the change in enthalpy of the gases. |
| A. | True |
| B. | False |
| Answer» B. False | |