A tool used to withdraw a drill from the sleeve is called
Drill remover
Drill puller
Drift
Drill drawer
Correct Answer :
C. Drift
Related Questions
Twist drills are made of
High speed steel
Carbon steel
Stainless steel
Either (A) or (B)
The cutting tool in a milling machine is mounted on
Spindle
Arbor
Column
Knee
The object of caulking in a riveted joint is to make the joint
Free from corrosion
Stronger in tension
Free from stresses
Leak-proof
Glazing in grinding wheels __________ cutting capacity.
Has no effect on
Increase
Decrease
None of these
Gear burnishing is a process for
Surface finishing
Undercut gears
Cycloidal gears
Removing residual stresses from teeth roots
The effect of setting a boring tool above centre height leads to
Increase in the effective rake angle and a decrease in the effective clearance angle
Increase in both effective rake angle and effective clearance angle
Decrease in the effective rake angle and an increase in the effective clearance angle
Decrease in both effective rake angle and effective clearance angle
In electro-discharge machining, dielectric is used to
Help in the movement of the sparks
Control the spark discharges
Act as coolant
All of these
In gear hobbing
Only hob rotates
Only gear blank rotates
Both hob and gear blank rotates
Neither hob nor gear blank rotates
Crater 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 only
Cutting edge only
Front face only
Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by
Adjusting the current
Adjusting the duration of current
Changing the electrode size
Changing the electrode coating
The lip angle is the angle
Between the tool face and the ground end surface of flank
Made by the face of the tool and the plane parallel to the base of the cutting tool
Between the face of the tool and a line tangent to the machined surface at the cutting point
None of the above
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
In electrochemical machining, the gap between the tool and work is kept as
0.1 mm
0.4 mm
0.35
0.75 mm
Small nose radius
Increases tool life
Decreases tool life
Produces chipping and decreases tool life
Results in excessive stress concentration and greater heat generation
High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
2 to 3 times lower
2 to 3 times higher
5 to 8 times higher
8 to 20 times higher
The type of tool used on milling machine and broaching machine is
Single point cutting tool
Two point cutting tool
Three point cutting tool
Multipoint cutting tool
Tool signature consists of __________ elements.
Two
Four
Five
Seven
A coarse grained grinding wheel is used to grind
Hard and brittle materials
Soft and ductile materials
Hard and ductile materials
Soft and brittle materials
When the tool moves parallel to the lathe axis, the movement is termed as
Cross feed
Angular feed
Longitudinal feed
Any one of these
The ductile materials, during machining, produce
Continuous chips
Discontinuous chips
Continuous chips with built up edge
Either (A) or (C)
A set of eight form relieved milling cutters for each module is provided to enable cutting of gears of different
Materials
Types of gears
Number of teeth
Width of gears
In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting velocity is 90 m/min. The feed is 0.24 mm/rev and the depth of cut is 2mm. The chip thickness obtained is 0.48 mm. If the orthogonal rake angle is zero and the principle cutting edge angle is 90⁰, the shear angle in degree is
20.56
26.56
30.56
36.56
Gear finishing operation is called
Shaping
Milling
Hobbing
Burnishing
The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
Mild steel
Copper
Aluminium
Brass
A drill mainly used in drilling brass, copper or softer materials, is
Flat drill
Straight fluted drill
Parallel shank twist drill
Tapered shank twist drill
For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
10 m/min
15 m/min
22 m/min
30 m/min
Crater wear leads to
Increase in cutting temperature
Weakening of tool
Friction and cutting forces
All of these
Dielectric is used in
Electrochemical machining
Ultrasonic machining
Electro discharge machining
Laser machining
The correct sequence of tool materials in increasing order of their ability to retain their hot hardness is
Carbide, ceramic, cermet, borazon
Ceramic, carbide, borazon, cermet
Cermet, carbide, ceramic, borazon
Borazon, ceramic, carbide, cermet
In DC arc welding, if leads are arranged in work as Negative pole of the welding arc and electrode as Positive pole of the welding arc, the arrangement is known as
Fusion
Reverse polarity
Forward welding
Direct polarity