Aerospace Engineering > GATE 2026 > Axial Compressor Velocity Triangles
The figure below shows the velocity triangles at the inlet and outlet of the rotor of a low hub-to-tip ratio axial compressor at the mid-span of the blade. The absolute and relative velocities of the flow are denoted by C and W, respectively. The subscripts 1 and 2 refer to the locations before and after the rotor, respectively. The blade velocity is denoted by U. Select the CORRECT statement(s) for this device.
A
The axial velocity is constant across the rotor
B
The flow coefficient is 0.6
C
The blade loading coefficient is 0.6
D
If the acoustic velocity at the rotor inlet is 350 m/s, then the inlet relative Mach number is 0.333

Correct : a,b,c,d

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