A. supersonics, as with projectile and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D. all of the above
E. none of the above
Related Mcqs:
- Bin card is used in__________________?
A. administrative wing
B. workshop
C. foundry shop
D. stores
E. assembly shop - Process of austempering results in__________________?
A. formation of bainite structure
B. carburised structure
C. martenistic structure
D. lamellar layers of carbide distributed throughout the structure
E. relieving of stresses throughout a component - In mottled cast iron, carbon is available in__________________?
A. free form
B. combined form
C. nodular form
D. flat form
E. partly in free and partly in combined state - Addition of manganese to aluminium results in__________________?
A. improvement of casting characteristics
B. improvement of corrosion resistance
C. one of the best known age and precipitation-hardening systems
D. improving machinability
E. none of the above - Mach number is significant in_____________________?
A. supersonics, as with projectiles and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls
D. all of fhe above
E. none of the above - The conditions for the stable equilibrium of a floating body are___________________?
A. the meta-center should lie above the center of gravity
B. the center of buoyancy and the center of gravity must lie on the same vertical line
C. a righting couple should be formed
D. all the above are correct
E. none of the above is correct - An open vessel of water is accelerated up an inclined plane. The free water surface will__________________?
A. be horizontal
B. make an angle in direction of inclination of inclined plane
C. make an angle in opposite direction to inclination of inclined plane
D. any one of above is possible
E. none of the above - According to Bernoulli’s equation for steady ideal fluid flow____________________?
A. principle of conservation of mass holds
B. velocity and pressure are inversely proportional
C. total energy is constant throughout
D. the energy is constant along a stream-line but may vary across streamlines
E. none of the above - The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called_______________?
A. upthrust
B. reaction
C. buoyancy
D. metacentre
E. center of pressure - The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to_________________?
A. 1000
B. 2100
C. 2700
D. 10,000
E. 21,000
