2012 MECHANICAL MOCK FOR SLIET LEET Fluid mechanics Section 1 21. When a perfect gas is expanded through an aperture of minute dimensions, the process is known as 1. isothermal process 2. adiabatic process 3.free expansion process 4. throttling process 22. Two vectors can said to be equal if their 1. Direction same 2.Magnitude same 3. Magnitude and direction same 4.. Magnitude, direction and sense same irrespective of their location in space 23. The magnitude of coefficient of restitution is dependent on 1.Mass of colliding bodies 2.Materials of colliding bodies 3. Approach velocities of the colliding bodies 4.All of above 24. Coulomb friction is the friction between 1. Bodies having relative motion 2.Two lubricated surface 3. Two dry surfaces 4.Solids and liquids 25. The velocity of mass of 5 kg after falling a height of 5m from rest would be approximately equal to 1.5m/s 2.25m/s 3. 50m/s 4. 10m/s Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 Pages ( 5 of 13 ): « Previous1 ... 34 5 67 ... 13Next »