Related Questions

A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity
A One-half
B One-third
C Two-third
D Three-fourth
The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves in the direction of jet with a velocity v is
A $$\frac{{{\text{wa}}\left( {{\text{V}} - {\text{v}}} \right)}}{{2{\text{g}}}}$$
B $$\frac{{{\text{wa}}\left( {{\text{V}} - {\text{v}}} \right)}}{{\text{g}}}$$
C $$\frac{{{\text{wa}}{{\left( {{\text{V}} - {\text{v}}} \right)}^2}}}{{2{\text{g}}}}$$
D $$\frac{{{\text{wa}}{{\left( {{\text{V}} - {\text{v}}} \right)}^2}}}{{\text{g}}}$$
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is
A Argon
B Xenon
C Helium
D Krypton
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is
A Neon
B Krypton
C Argon
D Helium
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is:
A Neon
B Argon
C Krypton
D Helium
In turbo fan engine, the jet velocity as compared to turbojet engine is
A Less
B More
C Same
D May be less or more depending upon speed
Air-fuel ratio in a jet engine will be of the order of
A 10 : 1
B 15 : 1
C 20 : 1
D 60 : 1
In a jet engine, the air-fuel ratio is
A 30 : 1
B 40 : 1
C 50 : 1
D 60 : 1
In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in
A Exit nozzle, which is a constant volume process
B Exit nozzle, which is essentially an isentropic process
C Turbine blades, which is a constant volume process
D Turbine blades, which is essentially an isentropic process
Use appropriate connector in the blank space of the following passage. Glabalization has become a buzzword in the new era of international relations. It is process of expanding trads and commerce by creating borderies market.
A However
B As a result
C In fact
D Therefore

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