Flank wear occurs mainly on the
Nose part, front relief face and side relief face of the cutting tool
Face of the cutting tool at a short distance from the cutting edge
Cutting edge only
Front face only
Correct Answer :
A. Nose part, front relief face and side relief face of the cutting tool
Related Questions
Quality screw threads are produced by
Thread milling
Thread chasing
Thread cutting with single point tool
Thread casting
Misrun is a casting defect which occurs due to
Very high pouring temperature of the metal
Insufficient fluidity of the molten metal
Absorption of gases by the liquid metal
Improper alignment of the mould flasks
The percentage of carbon in gray cast iron is in the range of
0.25 to 0.75 percent
1.25 to 1.75 percent
3 to 4 percent
8 to 10 percent
The velocity of tool along the tool face is known as
Shear velocity
Chip velocity
Cutting velocity
Mean velocity
The angle on which the strength of the tool depends is
Rake angle
Cutting angle
Clearance angle
Lip angle
The size of a lathe is specified by the
Length between centres
Swing diameter over the bed
Swing diameter over the carriage
All of these
The grinding wheel speed (surface speed in m/min) usually varies from
500 to 1000
1000 to 1500
1500 to 2000
2000 to 2500
Surface grinding is done to produce
Tapered surface
Flat surface
Internal cylindrical holes
All of these
An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is
Cutting speed
Feed rate
Shear angle
Tool geometry
In centreless grinding, the surface speed of regulating wheel is
5 to 15 m/min
15 to 60 m/min
60 to 90 m/min
90 to 120 m/min
In a centre lathe, the cutting tool is fed in _________ with reference to the lathe axis.
Cross direction only
Longitudinal direction only
Both cross and longitudinal direction
Any direction
In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux is spread over the joint. What is this type of welding process called?
Electric arc welding
Submerged arc welding
MIG welding
TIG welding
The mechanism of material removal in EDM process is
Melting and Evaporation
Melting and Corrosion
Erosion and Cavitations
Cavitations and Evaporation
The purpose of jigs and fixtures is to
Increase machining accuracy
Facilitate interchangeability
Decrease expenditure on quality control
All of these
Climb milling is chosen while machining because
The chip thickness increase gradually
It enables the cutter to dig in and start the cut
The specific power consumption is reduced
Better surface finish can be obtained
Which of the following parameters influence the axial feed rate in centerless grinding?
Regulating wheel diameter
Speed of the regulating wheel
Angle between the axes of grinding and regulating wheels
All of the above
The increase in depth of cut and feed rate __________ surface finish.
Improves
Deteriorates
Does not effect
None of these
Which of the following engineering materials is the most suitable candidate for hot chamber die casting?
Low carbon steel
Titanium
Copper
Tin
The broaching operation in which the work moves past the stationary tool is called
Pull broaching
Push broaching
Surface broaching
Continuous broaching
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
In a gating system, the ratio 1: 2: 4 represents
Sprue base area: runner area: ingate area
Pouring basin area: ingate area: runner area
Sprue base area: ingate area: casting area
Runner area: ingate area: casting area
The top and sides of the table of a shaper usually have
L-type slots
T-type slots
I-type slots
Any one of these
The tool may fail due to
Cracking at the cutting edge due to thermal stresses
Chipping of the cutting edge
Plastic deformation of the cutting edge
All of these
Dielectric is used in
Electrochemical machining
Ultrasonic machining
Electro discharge machining
Laser machining
While current is shut down in the welding circuit, what kind of voltage exists between the output terminals of the welding machine?
GTAW
Open air cut voltage
Kerf
Gouging
The abrasive recommended for grinding materials of high tensile strength is
Silicon carbide
Aluminium oxide
Sand stone
Diamond
Hardness of steel greatly improves with
Annealing
Cyaniding
Normalizing
Tempering
A shaft has a dimension, φ9 +0.025⁺⁰⁰⁰⁹, the respective values of fundamental deviation and tolerance are
- 0.025, ±0.008
- 0.025, 0.016
- 0.009, ± 0.008
- 0.009, 0.016
The angle between the lathe centres is
30°
45°
60°
90°
Which of the following statement is incorrect with reference of lathe cutting tools?
The flank of the tool is the surface or surfaces below and adjacent to the cutting edges
The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges
The heel is that part of the tool which is shaped to produce the cutting edges and face
The base is that surface of the shank which bears against the support and takes tangent pressure of the cut