To refrain from separation in subsonic nozzles, the expansion angle must not be more than ______
ক
10°
খ
20°
গ
30°
ঘ
40°
সঠিক উত্তর: 10°
To avoid separation in subsonic nozzles, the expansion angle should not exceed 10 degrees. If the angle is more than 10 degrees, there will be a drift amidst the nozzle. For larger angles, vanes are used so that the angle between the vanes does not exceed 10 degrees