16 Gas Turbines Combustion Chambers📄 Detailed Notes⚡ Cheat Sheet Results📄 Notes ⚡ Cheat Sheet📄 Notes ⚡ Cheat SheetQ1. One of the advantages of an annular combustion chamber is: that fewer igniters are required. a higher structural strength. a simpler assembly. a reduced thermal stress on the turbine. Q2. One of the advantages of annular combustion chamber over a multiple can is that: engine length is shorter because no diffuser is required. assembly and disassembly is easier. only one igniter is required. the thermal load distribution on the HP turbine is more favourable. Q3. The function of the drain valve in a gas turbine combustion chamber is to: prevent a wet start vent the combustion chamber after engine shutdown check whether the fuel nozzles leak fuel after engine shutdown. remove unburned fuel from the combustion chamber Q4. What is the correct sequence during the in-flight windmilling start of a turbine engine? Rotation, ignition, fuel Starter, rotation, fuel, ignition Starter, rotation, ignition, fuel Ignition, rotation, fuel Q5. In which part of a gas turbine engine are high temperature requirements most critical for the materials used? The last part of the HP compressor and front part of the HP turbine. The combustion chamber and exhaust nozzle. The turbine and exhaust nozzle. The combustion chamber and front part of the HP turbine. Q6. When a gas turbine engine is fitted with can-type combustion chambers: each chamber is fitted with two igniters. a total of only two igniters are usually fitted since the chambers are inter-connected. each chamber is fitted with one igniter and one glow plug. each chamber has its own igniter. Q7. In a gas turbine combustion chamber: secondary air is required for cooling of the inner casing. the gas pressure increases in an axial (downstream) direction. the axial velocity of the gas stream is greatest behind the swirl vanes. the gas temperature is highest at the chamber outlet. Q8. In a theoretical gas turbine cycle, combustion takes place at constant: energy. pressure. volume. temperature. Previous Submit The Test← Previous QuizNext Quiz →