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4

In reaming process

A. Metal removal rate is high

B. High surface finish is obtained

C. High form accuracy is obtained

D. High dimensional accuracy is obtained

Correct Answer :

C. High form accuracy is obtained


Related Questions

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4

The obtuse angle, included between the chisel edge and the lip as viewed from the end of a drill, is called

A. Helix or rake angle

B. Point angle

C. Chisel edge angle

D. Lip clearance angle

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4

The type of tool used on milling machine and broaching machine is

A. Single point cutting tool

B. Two point cutting tool

C. Three point cutting tool

D. Multipoint cutting tool

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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

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

The velocity of tool along the tool face is known as

A. Shear velocity

B. Chip velocity

C. Cutting velocity

D. Mean velocity

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4

A shaft has a dimension, φ9 +0.025⁺⁰⁰⁰⁹, the respective values of fundamental deviation and tolerance are

A. - 0.025, ±0.008

B. - 0.025, 0.016

C. - 0.009, ± 0.008

D. - 0.009, 0.016

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4

The chamfering is an essential operation after

A. Knurling

B. Rough turning

C. Boring

D. Thread cutting

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4

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

A. Globular transfer

B. Spray transfer

C. GMAW practice

D. Dip transfer

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4

Tool life is measured by the

A. Number of pieces machined between tool sharpenings

B. Time the tool is in contact with the job

C. Volume of material removed between tool sharpenings

D. All of the above

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4

Down milling is also called

A. Conventional milling

B. Climb milling

C. End milling

D. Face milling

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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 grinding of long, slender shafts or bars is usually done by

A. In-feed grinding

B. Through feed grinding

C. End-feed grinding

D. Any one of these

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4

The method of grinding used to produce a straight or tapered surface on a workpiece, is

A. Internal cylindrical grinding

B. Form grinding

C. External cylindrical grinding

D. Surface grinding

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4

Which of the following statement is correct for oblique cutting system?

A. The cutting edge is inclined at an angle less than 90° with the normal to the velocity of the tool.

B. Frequently, more than one cutting edges are in action.

C. The chip flows on the tool face at an angle less than 90° with the normal on the cutting edge.

D. All of the above

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4

In centreless grinding, the surface speed of regulating wheel is

A. 5 to 15 m/min

B. 15 to 60 m/min

C. 60 to 90 m/min

D. 90 to 120 m/min

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4

In American Standard Association (A S A) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then the side rake angle will be

A.

B.

C.

D. 10°

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The high cutting speed and large rake angle of the tool will result in the formation of

A. Continuous chips

B. Discontinuous chip

C. Continuous chips with built up edge

D. None of these

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4

The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive and bond, is called

A. Truing

B. Dressing

C. Facing

D. Clearing

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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

A feed gear box for a screw cutting lathe is designed on the basis of

A. Geometric progression

B. Arithmetic progression

C. Harmonic progression

D. None of these

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4

The process of removing metal by a cutter which is rotated against the direction of travel of workpiece, is called

A. Up milling

B. Down milling

C. Face milling

D. End milling

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4

In electrochemical machining, the gap between the tool and work is kept as

A. 0.1 mm

B. 0.4 mm

C. 0.35

D. 0.75 mm

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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

Relief angles on high speed steel tools usually vary from

A. 0° to 3°

B. 3° to 10°

C. 10° to 20°

D. 20° to 30°

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4

When the tool moves parallel to the lathe axis, the movement is termed as

A. Cross feed

B. Angular feed

C. Longitudinal feed

D. Any one of these

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4

Fixtures are used

A. For holding and guiding the tool in drilling, reaming or tapping operations

B. For holding the work in milling, grinding, planing or turning operations

C. To check the accuracy of workpiece

D. None of the above

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4

Lapping 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

Twist drills are made of

A. High speed steel

B. Carbon steel

C. Stainless steel

D. Either (A) or (B)

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4

In a gating system, the ratio 1: 2: 4 represents

A. Sprue base area: runner area: ingate area

B. Pouring basin area: ingate area: runner area

C. Sprue base area: ingate area: casting area

D. Runner area: ingate area: casting area

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4

Glazing in grinding wheels takes place when the

A. Wheel is too hard or wheel revolves at a very high speed

B. Wheel is too soft or wheel revolves at a very slow speed

C. Wheel is too hard and wheel revolves at very slow speed

D. Wheel is too soft and wheel revolves at a very high speed