Neglecting bending, for a parallel load on a fillet weld of equal legs the plane of maximum shear occurs at
A.15?
B.22
C.30?
D.45?
E.60?
Category: Mechanical Engineering Mcqs
The escape of burned gases from the combustion chamber past the pistons and into the crank case is called
A.Gas-loss
B.Blow-by
C.By-pass
D.Passed gas
E.Crank case explosion
Which of the following is used in the recently developed technology for communication?
A.Optical fibre
B.Glass fibre
C.Nylon fibre
D.Quartz fibre
A pulley in a belt-drive acts as a
A.sliding pair
B.rolling pair
C.Cylindrical pair
D.wrapping pair
For initially dry and saturated steam flowing through a nozzle the volue of critical pressure ratio is given by
A.1
B.0.528
C.0.546
D.0.577
E.0.75
Which one of the following does not form a part of Derrick crane?
A.Boom
B.Jack
C.Must
D.Bull wheel
Stalling of the blades of axial flow compressor is
A.an unsteady periodic and reversal of flow
B.the fixed mass flow rate regardless of pressure ratio
C.the reduction in lift force at higher angle of incidence
D.none of the above
The coefficient of friction is
A.The angle between the normal reaction and the resultant of normal reaction and the limiting friction
B.The tangent of the angle between the normal reaction and the resultant of the normal reaction and the limiting friction
C.The tangent of the angle of the net resultant force with the direction of motion
D.The tangent of the angle between the normal reaction and direction of limiting friction
E.The tangent of the angle between the horizontal plane and the resultant force
Systematic apratisal of each job in the organisation to determine its comparative value, is known as
A.Standardisation
B.Incentive plan
C.Regularisation
D.Job evaluation
E.Job specification
Which of the following element does not impart hardness to steel?
A.Copper
B.Nickel
C.Silicon
D.Chromium
E.None of the above
