In which of the following rows is the given information correctly matched?
|
Engine Type |
Speed Range |
Key Feature |
|
1. Jet Engine |
Subsonic to Transonic |
Uses a rotating compressor |
|
2. Ramjet |
Subsonic (Mach 1–3) |
Air remains supersonic during combustion |
|
3. Scramjet |
Hypersonic (Mach 5+) |
Allows supersonic combustion |
|
4. Dual Mode Ramjet |
Mach 4–8 |
Shifts between ramjet and scramjet modes |
Select the correct answer using the code below:
1
1 and 2 only
2
1, 3, and 4 only
3
2 and 4 only
4
1, 2, 3, and 4