A balometer is an element which senses
A.Optical input and delivers thermal output
B.Thermal input
C.Electrical input and delivers thermal output
D.Optical input and delivers electrical output
E.None of the above
Category: Production Engineering Mcqs
While using HSS tools on a lathe, cutting speed will be maximum when machining
A.Cast iron
B.Mild steel
C.High carbon steel
D.High speed steel
E.Aluminium
In a 32A 49-H 8V BE grinding wheel the grit size is represented by
A.32
B.46
C.8
D.BE
E.H
While machining cast iron generally cutting fluid is not required because
A.Cast iron surface is generally rough
B.The cast iron jobs revolves at low speeds
C.Cast iron contains graphite which does not allow temperatures to rise
D.Cast iron contains carbon which cools the job
E.None of the above
The surface roughness on a drawing is represented by
A.Circle
B.Square
C.Zig-zag lines
D.Triangle
E.Curve
The gold point temperature is
A.100?C
B.569?C
C.863?C
D.1000?C
E.1063?C
When 50 mm rod is turning at a spindle speed of 200 rpm the cutting speed would be
A.10 – 12 m/min
B.12 – 15 m/min
C.15 – 20 m/min
D.20 – 28 m/min
E.30-35 m/min
Vertical centrifugal castings as compared to horizontal centrifugal castings are spun at
A.Lower speeds
B.Higher speeds
C.Same speed
D.Varying speeds
E.None of the above
A very soft whisper may have noise level of
A.About 10 db
B.About 30 db
C.About 40 db
D.About 100 db
E.About 140 db
A foil is
A.Same as sheet
B.Same as strip
C.A cold rolled sheet
D.A thin strip with maximum width 300 mm and a maximum thickness of 1.5 mm
E.None of the above
