Q. A thin airfoil is mounted in a low-speed, subsonic wind tunnel, in which the Mach number is 0.1. At a point on the airfoil, the pressure coefficient is measured to be –1.2. If the flow velocity is increased such that the free-stream Mach number is 0.6, the pressure coefficient at the same point on […]
Q. The relation between pressure (p) and velocity (V) for a steady, isentropic flow at two points along a streamline is, (c is a constant) Ans: Option C
Q. The stagnation pressures at the inlet and exit of a subsonic intake are 100 kPa and 98 kPa, respectively. The pressure recovery of this intake will be Ans: 0.50 to 0.50
Which of the following plant flowers once in 12 years? Option 1 : Mangifera indicaOption 2 : Strobilanthus kunthiana (Neelakuranji)Option 3 : Helianthus annusOption 4 : Papver somniferum
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Q. For a damped single degree of freedom system with damping ratio of 0.1, ratio of two successive peak amplitudes of free vibration is Ans: 1.75 to 1.95
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Which of the following flowers only once in their lifetime? Option 1 : MangoOption 2 : NeemOption 3 : BambooOption 4 : All of these
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Q. The theoretical maximum velocity (in m/s) of air expanding from a reservoir at 700 K is (accurate to two decimal places). Specific heat of air at constant pressure is 1005 J/(kg-K). Ans: 1185.00 to 1186.50
Which information is false about the organism shown in the diagram? Option 1 : Reproduce by basidiosporesOption 2 : It is a multicellular fungusOption 3 : It is the conidia of penicilliumOption 4 : Belongs to ascomycetes
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Q. In an ideal gas turbine cycle, the expansion in a turbine is represented by (A) an isenthalpic process. (B) an isentropic process. (C) an isobaric process. (D) an isochoric process. Ans: an isentropic process.
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The approximate life span of the organism shown in the given diagram is Option 1 : 5 years Option 2 : 15 yearsOption 3 : 25 yearsOption 4 : 50 years
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