GATE_AE_2027_MOCK_05_Q21
GATE 2027 Aerospace Engineering All-India Master Mock 05 (High-Yield Comprehensive Grand Finale)
MCQ · 1 Mark
Flight Mechanics & Space Dynamics • Atmospheric Flight Mechanics • ISA Atmosphere & Drag Polars
The standard sea-level temperature and pressure in the International Standard Atmosphere (ISA) are defined as:
(A) T_0 = 288.15 K (15 deg C), P_0 = 101325 Pa
(B) T_0 = 273.15 K (0 deg C), P_0 = 100000 Pa
(C) T_0 = 300.0 K, P_0 = 101.3 kPa
(D) T_0 = 216.65 K, P_0 = 22.6 kPa
Answer Key:
A
Step-by-Step Verified Solution
### Solution: ISA sea-level datum: T_0 = 288.15 K (15 deg C), P_0 = 101325 Pa (101.325 kPa), ho_0 = 1.225 kg/m^3. Correct: A.