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4

The operation performed on a shaper is

A. Machining horizontal surface

B. Machining vertical surface

C. Machining angular surface

D. All of these

Correct Answer :

D. All of these


Related Questions

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4

The cutting fluid mostly used for machining alloy steels is

A. Water

B. Soluble oil

C. Dry

D. Sulphurised mineral oil

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4

In metal machining, the work-tool contact zone is a zone where heat is generated due to

A. Plastic deformation of metal

B. Burnishing friction

C. Friction between the moving chip and the tool face

D. None of the above

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4

In _________ operation, the chip thickness is minimum at the beginning of the cut and it reaches to the maximum when the cut terminates.

A. Conventional milling

B. Climb milling

C. Face milling

D. End milling

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4

In drilling softer materials, the cutting speed is _________ as compared to harder materials.

A. Same

B. Low

C. High

D. None of these

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4

The snag grinding is done

A. To produce good surface finish and high degree of accuracy

B. To remove considerable amount of metal without regard to accuracy of the finished surface

C. To grind exterior cylindrical surfaces

D. Any one of the above

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4

In machining metal, cutting force at the cutting edge is measured by a

A. Wattmeter

B. Dynamometer

C. Hydrometer

D. Pyrometer

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4

In a shaper, the length of stroke is increased by

A. Increasing the centre distance of bull gear and crank pin

B. Decreasing the centre distance of bull gear and crank pin

C. Increasing the length of the arm

D. Decreasing the length of the slot in the slotted lever

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4

The parameter which completely defines the chip formation in a metal cutting process is

A. Shear angle

B. Chip-tool contact length

C. Both (A) and (B)

D. None of these

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4

Trepanning is an operation of

A. Making a cone-shaped enlargement of the end of a hole

B. Smoothing and squaring the surface around a hole

C. Sizing and finishing a small diameter hole

D. Producing a hole by removing metal along the circumference of a hollow cutting tool

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4

Which of the following is the correct data structure for solid models?

A. Solid part - faces - edges - vertices

B. Solid part - edges - faces - vertices

C. Vertices - edges - faces - solid parts

D. Vertices - faces- edges - solid parts

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4

For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is

A. 10 m/min

B. 15 m/min

C. 22 m/min

D. 30 m/min

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4

Cold working of steel is defined as working

A. At its recrystallisation temperature

B. Above its recrystallisation temperature

C. Below its recrystallisation temperature

D. At two thirds of the melting temperature of the metal

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4

A ring gauge is used to measure

A. Outside diameter but not roundness

B. Roundness but not outside diameter

C. Both outside diameter and roundness

D. Only external threads

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4

Negative rakes are used for

A. Carbide tools

B. Heavy loads

C. Harder materials

D. All of these

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4

In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is

A. Depth of cut

B. Cutting speed

C. Feed

D. Tool rake angle

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4

Match the items of List-I (Equipment) with the items of List-II (Process) and select the correct answer using the given codes.
List-I (Equipment)List-II (Process)
P. Hot Chamber Machine1. Cleaning
Q. Muller2. Core making
R. Dielectric Baker3. Die casting
S. Sand Blaster4. Annealing
.5. Sand mixing

A. P-2, Q-1, R-4, S-5

B. P-4, Q-2, R-3, S-5

C. P-4, Q-5, R-1, S-2

D. P-3, Q-5, R-2, S-1

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4

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. 7

B. 8

C. 9

D. 10

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4

The main purpose of spheroidising treatment is to improve

A. Hardenability of low carbon steels

B. Machinability of low carbon steels

C. Hardenability of high carbon steels

D. Machinability of high carbon steels

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4

If the helix angle of the drill is made _________ 30°, then the torque required to drive the drill at a given feed will be more.

A. Equal to

B. Less than

C. More than

D. None of these

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4

The lip clearance angle is the angle formed by the

A. Leading edge of the land with a plane having the axis of the drill

B. Flank and a plane at right angles to the drill axis

C. Chisel edge and the lip as viewed from the end of a drill

D. None of the above

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4

Flank wear occurs mainly on the

A. Nose part, front relief face and side relief face of the cutting tool

B. Face of the cutting tool at a short distance from the cutting edge

C. Cutting edge only

D. Front face only

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4

Match the following metal forming processes with their associated stresses in the work piece.
Metal forming processTypes of stress
1. CoiningP. Tensile
2. Wire DrawingQ. Shear
3. BlankingR. Tensile and compressive
4. Deep DrawingS. Compressive

A. 1-S, 2-P, 3-Q, 4-R

B. 1-S, 2-P, 3-R, 4-Q

C. 1-P, 2-Q, 3-S, 4-R

D. 1-P, 2-R, 3-Q, 4-S

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4

The tail stock set over method of taper turning is preferred for

A. Internal tapers

B. Small tapers

C. Long slender tapers

D. Steep tapers

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4

Which of the following statement is incorrect with reference of lathe cutting tools?

A. The flank of the tool is the surface or surfaces below and adjacent to the cutting edges

B. The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges

C. The heel is that part of the tool which is shaped to produce the cutting edges and face

D. The base is that surface of the shank which bears against the support and takes tangent pressure of the cut

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4

A mandrel is used to hold

A. An eccentric work

B. A heavy work

C. A thin work

D. None of these

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4

As tool and work are not in contact in EDM process

A. No relative motion occurs between them

B. No wear of tool occurs

C. No power is consumed during metal cutting

D. No force between tool and work occurs

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4

In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is

A. Cylindrical grinder

B. Internal grinder

C. Surface grinder

D. Tool and cutter grinder

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4

If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is

A. 0.20

B. 0.30

C. 0.50

D. 0.60

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4

Cutting fluids are used to

A. Cool the tool

B. Improve surface finish

C. Cool the workpiece

D. All of these

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4

The factor considered for evaluation of machinability is

A. Cutting forces and power consumption

B. Tool life

C. Type of chips and shear angle

D. All of these