Consider the following statements with reference to supercharging of I.C. engines
1. Reciprocating compressors are invariably used for high degree of supercharging
2. Rotary compressors like roots blowers are quite suitable for low degree of supercharging
3. Axial flow compressors are most commonly employed for supercharging diesel engines used in heavy duty transport vehicles
4. Centrifugal compressors are used for turbo -charging
Which of the statements given above are correct?
Option (A)
1 and 2
Option (B)
2 and 3
1 and 4
2 and 4
Correct Option: