Spindle speed in a lathe for turning a 40 cm dia rod at a cutting speed of 30 m/min would be
A.100 rpm
B.206 rpm
C.238 rpm
D.336 rpm
E.468 rpm
Category: Production Engineering Mcqs
Sweep patterns are used for
A.Circular shape objects
B.Ellipucal objects
C.Rectangular objects
D.Any large size objects
E.Tiny objects
The limitation of electronically operated automatic control system is
A.Considerable time lag
B.Poor accuracy
C.Serious effect of ambient conduction
D.Complicated control response
E.It requires eloborate protection in hazardous locations
Quill is
A.A tool used in milling machine to cut T-slots
B.A holding device used on planers
C.Curring a blind key way on an object
D.A steel tube in the head of some machine tools that encloses the bearings and rotating spindle on which are mounted the cutting tools
E.None of above
A Hack-saw blade cuts on
A.Forward stroke
B.Return stroke
C.Both
D.Depends on direction of force
E.Depends on orientation
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
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
