GATE_AE_2027_MOCK_01_Q20
GATE 2027 Aerospace Engineering All-India Master Mock 01 (Foundation & Standard Core Calibration)
MCQ · 1 Mark
Aerodynamics & Fluid Mechanics • Wind Tunnel Testing & Instrumentation • Pitot-Static Probes & Pressure Transducers
In wind tunnel testing, the difference between total pressure measured by a Pitot tube and ambient static pressure measured by a static wall port represents:
(A) Dynamic pressure $q = \frac{1}{2}\rho V^2$
(B) Stagnation temperature difference
(C) Boundary layer displacement thickness
(D) Shock wave total pressure loss
Answer Key:
A
Step-by-Step Verified Solution
### Solution: By definition, total pressure $p_0 = p + q \implies p_0 - p = q = \frac{1}{2}\rho V^2$. Correct: A.