Which of the following forces do not act on fluids
A.Inertia
B.Viscous force
C.Gravity
D.Pressure
E.Torsion
Category: Mechanical Engineering Mcqs
As the compression ratio increases the volumetric efficiency of air compressor
A.Increases
B.Decreases
C.Does not change
D.Unpredictable
E.None of the above
When a beam having square cross-section is loaded longitudinally, the shear stress develops
A.One middle fibres in horizontal plane
B.On top fibre in horizontal plane
C.On middle fibre in vertical plane
D.Along the diagonal
E.Equally on each fibre along horizontal plane
According to the law of gearing
A.Common normal at the point of contact always passes through a fixed point (pitch point) on the line joining the centres of rotation
B.Teeth should be involute type
C.Teeth should be cycloidal type
D.Clearance should be minimum 0.15 mm
E.The gears whould be cut with the cutter having same module
Plaster patterns and core boxes are made of
A.Plaster of Paris
B.Gypsum cement
C.Bone china clay
D.White powder
The defect known as ‘drop’ occurs when the upper surface of the mould cracks and pieces of sand fall into the molten metal. This defect occurs due to
A.low mould hardness
B.insufficient reinforcement
C.low green strength
D.any of the above
What should a wise manager try to do about the informal communication system (the grapevine) that exists (virtually within) every formal organization?
A.Destroy it
B.Ignore it
C.Impede its flow of messages whenever possible
D.Use it as a supplement to the formal system
E.None of the above
The main alloy for corrosion resistance in stainless steel is
A.Carbon
B.Manganese
C.Chromium
D.Cobalt
E.Vanadium
