Which one of the following shovel excavator is not suitable for operation in hard soil or rock?
A.Dipper shovel
B.Clam shell
C.Drag line
D.Back hoe
Category: Mechanical Engineering Mcqs
Bleaching power is
A.Lime
B.Stacked lime
C.Chloride of lime
D.Hypo-chloride of lime
E.Hypo-chlorite of lime
Warping may be avoided when quenching a long slender piece of work by
A.Holding the work piece between clamps and pouring water on it
B.Hoding the work piece vertically over the quenching bath and plunging it straight
C.Pulling the piece from both ends
D.Holding the piece horizontally in adequate supports
E.None of the above
Which of the following material is used for permanent magnets?
A.Alnico
B.Delta metal
C.Elnivar
D.Invar
E.Duralumin
The frame provided for supporting the units of chasis and the body, in case of Tata vehicles is
A.Cross member – type frame
B.Centre beam frame
C.Y-shaped tube frame
D.Self-supporting structure
E.Any of the above
The pH value of sea water is usually
A.1
B.Between 3 and 5
C.Between 5 and 7
D.Between 8 and 8.3
E.Between 13.7 and 14
Which wood is difficult to machine?
A.Freshly failed wood
B.Old and used wood
C.Kiln dried wood
D.Seasoned wood
Greater the difference between jet velocity and aeroplane velocity
A.greater the propulsive efficiency
B.Lesser the propulsive efficiency
C.unaffected is the propulsive efficiency
D.None of the above
Fusible plug for boilers consists of
A.Lead, tin and mercury
B.Copper, lead and tin
C.Zinc, copper and lead
D.Bismuth, lead and tin
E.Zinc, bismuth and tin
The purpose of providing multiple collars on a flat collar pivot bearing is to
A.Increase frictional resistance
B.Establish self-substaining bearing condition
C.Distribute the frictional load because of limiting frictional resistance
D.Distribute the axial load becase of limiting bearing pressure on a collar
E.None of the above
