List of top Mechanical Engineering Questions on Production Technology

Identify the correct type of defect for casting shown below: 
defect for casting
Cracks appear in weld and base metal when the localized stresses exceed the ——––––––––– strength of a metal.
In a machining operation that approximates orthogonal cutting, the cutting tool has a rake angle of 10°. The chip thickness before the cut \(t_0 = 0.50\) mm and the chip thickness after the cut \(t_c = 1.125\) mm. The shear plane angle \(\phi\) is ——–––––––––.
Assuming \(\sin 10^\circ = 0.173\) and \(\cos 10^\circ = 0.984\).
The term “bulk” in bulk deformation processes describes the work parts that have ——––––––––– ratio.
Identify the operation which cannot be performed using a conventional lathe.
Identify the operation related to drilling which is illustrated in Figure below.
operation related to drilling
In laser beam welding, ——––––––––– are associated with the evolution of vapor from the surface of the material to produce a needle-like, vapor-filled cavity or keyhole in the work piece through which the beam can penetrate.
Which of the following is an incorrect operation in relation to the finishing processes employed for gear teeth?
Which of the following options does not belong to a special purpose lathe?