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In which of the following machine, the work rotates and the tool is stationary?

A. Vertical boring machine

B. Horizontal boring machine

C. Precision boring machine

D. Jig boring machine

Correct Answer :

A. Vertical boring machine


Related Questions

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In drilling Bakelite and fibrous plastics, the point angle of a drill is

A. 90°

B. 118°

C. 135°

D. 150°

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The lip angle of a single point tool is usually

A. 20° to 40°

B. 40° to 60°

C. 60° to 80°

D. None of these

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The abrasive recommended for grinding materials of low tensile strength is

A. Silicon carbide

B. Aluminium oxide

C. Sand stone

D. Diamond

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Shrinkage allowance on pattern is provided to compensate for shrinkage when

A. The temperature of liquid metal drops from pouring to freezing temperature

B. The metal changes from liquid to solid state at freezing temperature

C. The temperature of solid phase drops from freezing to room temperature

D. The temperature of metal drops from pouring to room temperature

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Lathe bed is made of

A. Mild steel

B. Alloy steel

C. Pig iron

D. Chilled cast iron

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A coarse grained grinding wheel is used to grind

A. Hard and brittle materials

B. Soft and ductile materials

C. Hard and ductile materials

D. Soft and brittle materials

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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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The broaching operation in which either the work or the tool moves across the other, is known as

A. Pull broaching

B. Push broaching

C. Surface broaching

D. Continuous broaching

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A broach has

A. Roughing teeth

B. Semi-finishing teeth

C. Finishing teeth

D. All of these

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In oblique cutting system, the maximum chip thickness

A. Occurs at the middle

B. May not occur at the middle

C. Depends upon the material of the tool

D. Depends upon the geometry of the tool

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Which of the following statement is correct about hot machining?

A. It requires less power than machining metals at room temperature.

B. The rate of tool wear is lower.

C. It is used for machining high strength and high temperature resistant materials.

D. All of the above

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A tool used to withdraw a drill from the sleeve is called

A. Drill remover

B. Drill puller

C. Drift

D. Drill drawer

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What is the method of brazing used to join relatively small assemblies made from materials that either do not oxidize at the brazing temperature or can be protected from oxidation with a flux?

A. Torch brazing

B. Dip brazing

C. Resistance brazing

D. Furnace brazing

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In a plain milling cutter, the portion of the gash adjacent to the cutting edge on which the chip impinges is called

A. Face

B. Fillet

C. Land

D. Lead

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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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When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.

A. Single riveted

B. Double riveted

C. Both (A) and (B)

D. None of these

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In oblique cutting system, the cutting edge of the tool

A. May clear the width of the workpiece

B. May or may not clear the width of the workpiece

C. May not clear the width of the workpiece

D. Should always clear the width of the workpiece

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The example of snag grinding is

A. Trimming the surface left by sprues and risers on castings

B. Grinding the parting line left on castings

C. Removing flash on forgings

D. All of these

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A diamond locating pin is used in jigs and fixtures because

A. Diamond is very hard and wear resistant

B. It occupies very little space

C. It helps in assembly with tolerance on centre distance

D. It has a long life

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The structure of a grinding wheel depends upon

A. Hardness of the material being ground

B. Nature of the grinding operation

C. Finish required

D. All of these

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In determining the various forces on the chip, Merchant assumed that the

A. Cutting edge of the tool is sharp and it does not make any flank contact with the workpiece

B. Only continuous chip without built-up-edge is produced

C. Cutting velocity remains constant

D. All of the above

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When the metal is removed by erosion caused by rapidly recurring spark discharges between the tool and work, the process is known as

A. Electrochemical machining

B. Electro-discharge machining

C. Ultrasonic machining

D. None of these

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In a plain milling machine, the table can be moved

A. Longitudinally

B. Crosswise

C. Vertically

D. All of these

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Which of the following engineering materials is the most suitable candidate for hot chamber die casting?

A. Low carbon steel

B. Titanium

C. Copper

D. Tin

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Low helix angle drills are preferred for drilling holes in

A. Plastics

B. Copper

C. Cast steel

D. Carbon steel

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A dynamometer is a device used for the measurement of

A. Chip thickness ratio

B. Forces during metal cutting

C. Wear of the cutting tool

D. Deflection of the cutting tool

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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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Crater 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 only

C. Cutting edge only

D. Front face only

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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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The saw milling is an operation of

A. Producing grooves around the periphery of a cylindrical or conical workpiece

B. Producing narrow slots or grooves on a workpiece

C. Reproduction of an outline of a template on a workpiece

D. Machining several surfaces of a workpiece simultaneously