Black broken lines on a pattern indicates
A.Surface to be left unmachined
B.Surfaces to be machined
C.Core prints
D.Seats for loose core prints
E.Fillets
Category: Production Engineering Mcqs
Which one of the following methods is generally not used in welding of chromium molybdenum steels
A.Oxyacetylene
B.Submerged arc
C.Thermit
D.Resistance
The value of coefficient of friction expected in case of brake lining of steel wheel drum is
A.0.1
B.0.1 to 0.3
C.0.4 to 0.5
D.0.8 to 0.95
E.1
Weld spatter is
A.A flux
B.A filler material used in gas welding
C.A filler material used in soldering
D.An electrode used in inert atmosphere
E.A welding defect
Two 20 mm thick plates are to be gas welded. What size of welding rod should be selected out of the following rods available?
A.1.5 mm
B.3 mm
C.4.5 mm
D.6 mm
E.8 mm
In a 48A 100-H-8-S-BE grinding wheel the type of bond used is
A.Vitrified
B.Silicate
C.Resinoid
D.Rubber
E.Shellac
Oxygen cylinders are
A.Cast iron cylinders
B.Steel cylinders, welded structure
C.Die cast
D.Seamless steel cylinders
E.Alloy steel cylinders, thermit welded
Tumbling is done to
A.Clean the surface of small parts
B.Stress relieve the components
C.Get surface finish
D.To plate the surface
E.To break the material into pieces
While using high speed steel tools on lathe the speed of chuck will be lowest while machining
A.Cast iron
B.Copper
C.Brass
D.Aluminium
E.White metal
