What is the type of welding defect caused due to shrinkage during solidification and by weld stresses called?
What is the type of welding defect caused due to shrinkage during solidification and by weld stresses called?
When the temperature of a solid metal increases,
When the temperature of a solid metal increases,
In a plain milling machine, the table can be moved
In a plain milling machine, the table can be moved
In American Standard Association (ASA) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be
In American Standard Association (ASA) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be
In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is
In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is
The tail stock set over method of taper turning is preferred for
The tail stock set over method of taper turning is preferred for
The angle between the face and flank of the single point cutting tool is known as
The angle between the face and flank of the single point cutting tool is known as
Gear burnishing is a process for
Gear burnishing is a process for
When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is
A shaft has a dimension, φ9 +0.025⁺⁰∙⁰⁰⁹, the respective values of fundamental deviation and tolerance are
A shaft has a dimension, φ9 +0.025⁺⁰∙⁰⁰⁹, the respective values of fundamental deviation and tolerance are
The cutting speed of a drill depends upon the
The cutting speed of a drill depends upon the
The example of snag grinding is
The example of snag grinding is
While current is shut down in the welding circuit, what kind of voltage exists between the output terminals of the welding machine?
While current is shut down in the welding circuit, what kind of voltage exists between the output terminals of the welding machine?
The method of centre less grinding used to produce taper is
The method of centre less grinding used to produce taper is
The velocity of tool along the tool face is known as
The velocity of tool along the tool face is known as
The width of cutting edge of a parting off tool varies from
The width of cutting edge of a parting off tool varies from
In metal machining, the work-tool contact zone is a zone where heat is generated due to
In metal machining, the work-tool contact zone is a zone where heat is generated due to
The taper on the lathe spindle is
The taper on the lathe spindle is
The factor considered for evaluation of machinability is
The factor considered for evaluation of machinability is
Which of the following statement is wrong about ultrasonic machining?
Which of the following statement is wrong about ultrasonic machining?
The factor which affects the tool life is
The factor which affects the tool life is
When the shear angle is small
When the shear angle is small
The vector sum of cutting velocity and chip velocity is __________ shear velocity.
The vector sum of cutting velocity and chip velocity is __________ shear velocity.
In hot machining, tool is made of
In hot machining, tool is made of
The angle formed by the leading edge of the land with a plane having the axis of the drill, is called
The angle formed by the leading edge of the land with a plane having the axis of the drill, is called
The carbide tools operating at very low cutting speeds (below 30 m/min)
The carbide tools operating at very low cutting speeds (below 30 m/min)
The machining of titanium is difficult due to
The machining of titanium is difficult due to
A fixture is defined as a device which
A fixture is defined as a device which
The cutting fluid mostly used for machining steel is
The cutting fluid mostly used for machining steel is
The lathe spindles are usually made hollow and provided with
The lathe spindles are usually made hollow and provided with
Larger end cutting edge angle _________ tool life.
Larger end cutting edge angle _________ tool life.
The operation of making a cone-shaped enlargement of the end of a hole is known as
The operation of making a cone-shaped enlargement of the end of a hole is known as
A tool used to withdraw a drill from the sleeve is called
A tool used to withdraw a drill from the sleeve is called
The high cutting speed and large rake angle of the tool will result in the formation of
The high cutting speed and large rake angle of the tool will result in the formation of
A fine grained grinding wheel is used to grind
A fine grained grinding wheel is used to grind
In electro discharge machining, tool is made of
In electro discharge machining, tool is made of
In which of the following machine, the work remains stationary and the tool is rotated?
In which of the following machine, the work remains stationary and the tool is rotated?
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?
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?
Gears can be best produced on mass production by
Gears can be best produced on mass production by
Stellite preserves hardness up to a temperature of
Stellite preserves hardness up to a temperature of
Crack in grinding wheel is developed due to
Crack in grinding wheel is developed due to
A jig is defined as a device which
A jig is defined as a device which
High speed steel tools retain their hardness up to a temperature of
High speed steel tools retain their hardness up to a temperature of
The factor responsible for the formation of continuous chips with built up edge is
The factor responsible for the formation of continuous chips with built up edge is
In determining the various forces on the chip, Merchant assumed that the
In determining the various forces on the chip, Merchant assumed that the
NC contouring is an example of
NC contouring is an example of
In a CNC program block, N002 GO2 G91 X40 Z40......, GO2 and G91 refer to
In a CNC program block, N002 GO2 G91 X40 Z40......, GO2 and G91 refer to
Volume of a cube of side ‘l’ and volume of a sphere of radius ‘r’ are equal. Both the cube and the sphere are solid and of same material. They are being cast. The ratio of the solidification time of the cube to the same of the sphere is
Volume of a cube of side ‘l’ and volume of a sphere of radius ‘r’ are equal. Both the cube and the sphere are solid and of same material. They are being cast. The ratio of the solidification time of the cube to the same of the sphere is
The type of reamer used for reaming operation in a blind hole, is
The type of reamer used for reaming operation in a blind hole, is
The material which on machining produces chips with built up edge is
The material which on machining produces chips with built up edge is
The operation of smoothing and squaring the surface around a hole is known as
The operation of smoothing and squaring the surface around a hole is known as
In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
The obtuse angle, included between the chisel edge and the lip as viewed from the end of a drill, is called
The obtuse angle, included between the chisel edge and the lip as viewed from the end of a drill, is called
Segmental chips are formed during machining
Segmental chips are formed during machining
The top and sides of the table of a shaper usually have
The top and sides of the table of a shaper usually have
A diamond locating pin is used in jigs and fixtures because
A diamond locating pin is used in jigs and fixtures because
In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal, is called
The ductile materials, during machining, produce
The ductile materials, during machining, produce
For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
Tool signature consists of __________ elements.
Tool signature consists of __________ elements.
In the relation VTn = C, the value of n for ceramic tools is
In the relation VTn = C, the value of n for ceramic tools is
In lapping operation, the amount of metal removed is
In lapping operation, the amount of metal removed is
In a metal arc welding process, metal transfer across the arc may take place by a method of material transfer where the metal transfers across the arc is in larger drops. This is at the rate of 100 drops/sec or less, what is this known as
In a metal arc welding process, metal transfer across the arc may take place by a method of material transfer where the metal transfers across the arc is in larger drops. This is at the rate of 100 drops/sec or less, what is this known as
The type of tool used on milling machine and broaching machine is
The type of tool used on milling machine and broaching machine is
Chip breakers are used to
Chip breakers are used to
Cast iron during machining produces
Cast iron during machining produces
The point angle of a drill, for drilling stainless steel, is
The point angle of a drill, for drilling stainless steel, is
The increase in depth of cut and feed rate _________ surface finish.
The increase in depth of cut and feed rate _________ surface finish.
The snag grinding is done
The snag grinding is done
The tool life is said to be over if
The tool life is said to be over if
Negative rakes are used for
Negative rakes are used for
Which one of the following is a solid state joining process?
Which one of the following is a solid state joining process?
In machining metal, cutting force at the cutting edge is measured by a
In machining metal, cutting force at the cutting edge is measured by a
The lead screw of a lathe has _________ threads.
The lead screw of a lathe has _________ threads.
The maximum production of small and slender parts is done by
The maximum production of small and slender parts is done by
For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of
For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature of
When the end of a tap is tapered for about three or four threads, it is known as a
When the end of a tap is tapered for about three or four threads, it is known as a
A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is
A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen and is used for fusion welding of steel and cast iron, is
Internal or external threads of different pitches can be produced by
Internal or external threads of different pitches can be produced by
Drilling is an example of
Drilling is an example of
Which of the following statement is wrong as regard to down milling?
Which of the following statement is wrong as regard to down milling?
In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called
In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called
In metal cutting operations, the shear angle is the angle made by the shear plane with the
In metal cutting operations, the shear angle is the angle made by the shear plane with the
Which of the following operations can be performed with milling cutters?
Which of the following operations can be performed with milling cutters?
A broach has
A broach has
Flank wear depends upon the
Flank wear depends upon the
The binding material used in cemented carbide tools is
The binding material used in cemented carbide tools is
In a gating system, the ratio 1: 2: 4 represents
In a gating system, the ratio 1: 2: 4 represents
The size of abrasive grain required in a grinding wheel depends upon the
The size of abrasive grain required in a grinding wheel depends upon the
When the cutting edge of the tool is dull, then during machining
When the cutting edge of the tool is dull, then during machining
A taper tap has
A taper tap has
For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
A twist drill is specified by its
A twist drill is specified by its
In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰∙⁰⁴⁰ mm mate with holes of size 25.000 -0.010⁺⁰∙⁰²⁰ mm. The maximum possible clearance in the assembly will be
In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰∙⁰⁴⁰ mm mate with holes of size 25.000 -0.010⁺⁰∙⁰²⁰ mm. The maximum possible clearance in the assembly will be
In drilling brass, a drill with
In drilling brass, a drill with
In _________ operation, the cutting force is maximum when the tooth begins its cut and reduces it to minimum when the tooth leaves the work.
In _________ operation, the cutting force is maximum when the tooth begins its cut and reduces it to minimum when the tooth leaves the work.
A coarse grained grinding wheel is used to grind
A coarse grained grinding wheel is used to grind
The size of a lathe is specified by the
The size of a lathe is specified by the
A twist drill is a
A twist drill is a
In ultrasonic machining, tool is made of
In ultrasonic machining, tool is made of
In oblique cutting system, the cutting edge of the tool
In oblique cutting system, the cutting edge of the tool
The specific cutting energy used for establishing the machinability of the metal depends upon its
The specific cutting energy used for establishing the machinability of the metal depends upon its
In transverse grinding
In transverse grinding
In the relation VTn = C, the value of n for carbide tools is
In the relation VTn = C, the value of n for carbide tools is
Which of the following operation is first performed?
Which of the following operation is first performed?
In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become
In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become
Trepanning is performed for
Trepanning is performed for
The angle between the lathe centres is
The angle between the lathe centres is
A 15 mm drilling machine means that it can drill a hole
A 15 mm drilling machine means that it can drill a hole
