In transverse grinding
The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face
Correct Answer :
A. The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
Related Questions
The abrasive slurry used in ultrasonic machining contains fine particles of
Aluminium oxide
Boron carbide
Silicon carbide
Any one of these
Cutting fluids are used to
Cool the tool
Improve surface finish
Cool the workpiece
All of these
The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
Rake angle
Cutting angle
Clearance angle
Lip angle
The carbide tools operating at very low cutting speeds (below 30 m/min)
Reduces tool life
Increases tool life
Have no effect on tool life
Spoils the work piece
What is the type of welding defect caused due to shrinkage during solidification and by weld stresses called?
Incomplete fusion
Lamellar tearing
Mismatch
Shrinkage void
The snag grinding is done
To produce good surface finish and high degree of accuracy
To remove considerable amount of metal without regard to accuracy of the finished surface
To grind exterior cylindrical surfaces
Any one of the above
Which of the following statement is correct about nose radius?
It improves tool life
It improves the surface finish
Both (A) and (B)
None of these
Internal gear cutting operation can be performed by
Milling
Shaping with rack cutter
Shaping with pinion cutter
Hobbing
In a plain milling cutter, the portion of the gash adjacent to the cutting edge on which the chip impinges is called
Face
Fillet
Land
Lead
The average cutting speed for turning brass with a high speed steel tool is
15 to 19 m/min
25 to 31 m/min
60 to 90 m/min
90 to 120 m/min
Which of the following engineering materials is the most suitable candidate for hot chamber die casting?
Low carbon steel
Titanium
Copper
Tin
In up milling, the thickness of chip is
Minimum at the beginning of the cut and maximum at the end of the cut
Maximum at the beginning of the cut and minimum at the end of the cut
Uniform throughout the cut
None of these
The saw milling is an operation of
Producing grooves around the periphery of a cylindrical or conical workpiece
Producing narrow slots or grooves on a workpiece
Reproduction of an outline of a template on a workpiece
Machining several surfaces of a workpiece simultaneously
Fixtures are used
For holding and guiding the tool in drilling, reaming or tapping operations
For holding the work in milling, grinding, planing or turning operations
To check the accuracy of workpiece
None of the above
A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2mm depth by a cutter of 10 mm diameter between points (0,0) and (100,100) on the XY plane (dimensions in mm). The feed rate used for milling is 50 mm/min, milling time for the slot (in seconds) is
120
170
180
240
The method of grinding used to produce a straight or tapered surface on a workpiece, is
Internal cylindrical grinding
Form grinding
External cylindrical grinding
Surface grinding
Cast iron during machining produces
Continuous chips
Discontinuous chips
Continuous chips with built-up edge
None of these
Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same?
Turning
Grinding
Boring
Milling
The type of tool used on lathe, shaper and planer is
Single point cutting tool
Two point cutting tool
Three point cutting tool
Multipoint cutting tool
The factor considered for evaluation of machinability is
Cutting forces and power consumption
Tool life
Type of chips and shear angle
All of these
A push broach as compared to pull broach
Has less number of teeth
Is short and stocky
Removes less material for each pass of the tool
All of the above
The hardness of a grinding wheel is determined by the
Hardness of abrasive grains
Ability of the bond to retain abrasives
Hardness of the bond
Ability of the grinding wheel to penetrate the work piece
An open structure of a grinding wheel is used for
Soft materials
Tough materials
Ductile materials
All of these
A dynamometer is a device used for the measurement of
Chip thickness ratio
Forces during metal cutting
Wear of the cutting tool
Deflection of the cutting tool
A lathe with four steps on the cone pulley and with back-gears will have
Four direct speeds
Four indirect speeds
Four direct and four indirect speeds
Eight indirect speeds
In a plain milling machine, the table can be moved
Longitudinally
Crosswise
Vertically
All of these
In a single point tool, the angle between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base, is known as
Side relief angle
End relief angle
Back rake angle
Side rake angle
A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to drill a through hole in a mild steel plate 20 mm thickness. The depth of cut in this drilling operation is
0.2 mm
10 mm
20 mm
100 mm
The shear velocity is the velocity of
Tool relative to the workpiece
Chip relative to the tool
Tool along the tool face
None of these
The tap used to cut threads in a blind hole is
Taper tap
Second tap
Bottoming tap
Any one of these