This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “System Integration and Engine Optimization”. 1. Which of the following is not a method of achieving a variable thrust? a) Injecting liquid into the gas streams before injection b) Varying injection element area c) Varying the nozzle throat area d) Varying feed … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Engine System Calibration”. 1. The calibration procedure for the turbopump system is ________ complex compared to gas pressure fed systems. a) equally b) less c) more d) unrelated 2. The process of balancing the pressure available to the engine against the pressure … Read more
This set of Rocket Propulsion Question Bank focuses on “Engine Controls”. 1. The complexity of the control elements of the engine systems depend mostly on _________ a) capital b) launching site c) mission d) trajectory 2. Single-shot devices are _________ a) devices with a single-engine b) devices which are deployed only once c) devices which … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Engine Design”. 1. Which of the following studies usually result in a small improvement in vehicle performance? a) Optimization studies b) Mission analysis c) Trajectory design d) Launch site selection 2. Which of the following is not optimized in the optimization studies? … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Propellant Budget”. 1. Liquid propellants can only use for producing thrust and increasing the velocity of the vehicle. a) True b) False 2. What is the typical amount of propellant (in percentage) used for a spacecraft propulsion system with a pressurized monopropellant … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Multiple Rocket Propulsion Systems Performance”. 1. For a rocket with an initial mass of 15,000 kg and carrying a payload of 1000 kg, determine the velocity change if it was ground launched and has an equivalent exhaust velocity of 3000 m/s. Assume … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Turbopumps”. 1. Which of the following is the term used to denote a turbine with one or more pumps? a) Turboshaft b) Turbopump c) Turboprop d) Turbojet 2. Main purpose of a turbopump is to ____________ a) decrease the temperature of flowing … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Liquid Propellants – Combustion Instability”. 1. Which of the following terms best describes the combustion when the pressure fluctuation during steady operation is 4% of the mean chamber pressure? a) Smooth combustion b) Rough combustion c) Combustion instability d) Complete combustion 2. … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Liquid Propellants – Combustion process”. 1. Which of the following zones is not a part of the thrust chamber? a) Atomization zone b) Rapid-combustion zone c) Stream tube combustion zone d) Transonic flow zone 2. The boundaries between the discrete combustion zones … Read more
This set of Rocket Propulsion Multiple Choice Questions & Answers (MCQs) focuses on “Sample Thrust Chamber Design Analysis”. 1. Determine the propellant mass flow rate for a TSFC of 3200 kg/Ns and a total thrust of 50 kN. a) 21.65 kg/s b) 12.56 kg/s c) 16.52 kg/s d) 15.62 kg/s 2. Find the fuel flow … Read more
