Question 21. A planar closed kinematic chain is formed with rigid links PQ = 2.0 m, QR = 3.0 m, RS = 2.5 m
and SP = 2.7 m with all revolute joints. The link to be fixed to obtain a double rocker (rockerrocker)
mechanism is

Question 22. In a rolling process, the state of stress of the material undergoing deformation is

Question 23. A cylinder contains 5 m3 of an ideal gas at a pressure of 1 bar. This gas is compressed in a
reversible isothermal process till its pressure increases to 5 bar. The work in kJ required for this
process is

Question 24. Consider one-dimensional steady state heat conduction along x-axis (0 ≤ x ≤ L), through a plane
wall; with the boundary surfaces (x=0 and x=L) maintained at temperatures of 0°C and 100°C.
Heat is generated uniformly throughout the wall. Choose the CORRECT statement.

Question 25. For steady, fully developed flow inside a straight pipe of diameter D, neglecting gravity effects, the
pressure drop ∆p over a length L and the wall shear stress tw are related by

Question 26. For a ductile material, toughness is a measure of

Question 27. In the 3-2-1 principle of fixture design, 3 refers to the number of

Question 28. A steel bar 200 mm in diameter is turned at a feed of 0.25 mm/rev with a depth of cut of 4 mm. The
rotational speed of the workpiece is 160 rpm. The material removal rate in mm3/s is

Question 29. Specific enthalpy and velocity of steam at inlet and exit of a steam turbine, running under steady state, are as given below:                                      Specific enthalpy (kJ/kg)    Velocity (m/s)Inlet steam condition               3250                            180Exit steam condition                2360                                 5The rate of heat loss from the turbine per kg of steam flow rate is 5 kW. Neglecting changes in potential energy of steam, the power developed in kW by the steam turbine per kg of steam flowrate, is

Question 30. A simply supported beam of length L is subjected to a varying distributed load sin (3Ï€ x/L) Nm-1, where the distance x is measured from the left support. The magnitude of the vertical reaction force in N at the left support is