Question

In a ramjet engine, the air compression takes place by

• A. Compressor
• B. Diffuser and shock waves
• C. Turbine
• D. Convergent nozzle

Hint:

Ramjet engines contain \[ \boxed{ \text{No Compressor} \qquad \text{No Turbine} } \] Air compression is achieved by \[ \boxed{ \text{Ram Effect + Diffuser + Shock Waves}. } \]

Answer 1

The Correct Option is B

Step 1: Recall the working principle of a ramjet engine. A ramjet engine has \[ \boxed{\text{no compressor and no turbine}.} \] It relies entirely on the forward speed of the aircraft to compress the incoming air.

Step 2: Identify the compression mechanism. The incoming air is compressed through
• the diffuser, and
• shock waves (for supersonic flight). Thus, \[ \boxed{ \text{air compression takes place by the diffuser and shock waves.} } \] Therefore, \[ \boxed{(B)} \] is the correct answer.