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4

Which of the following statement is wrong?

A. The mortise gauge has two scribing pins

B. The gouges are chisels with a hollow shaped blade

C. An auger is a planing tool

D. All of these

Correct Answer :

C. An auger is a planing tool


Related Questions

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For obtaining a cup of diameter 25 mm and height 15 mm by drawing, the size of the round blank should be approximately

A. 42 mm

B. 44 mm

C. 46 mm

D. 48 mm

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4

The dowels are

A. Wooden nails

B. Box nails

C. Wire nails

D. None of these

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4

The punch and die set up is ________ for punching and piercing operation.

A. Same

B. Similar

C. Different

D. None of these

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4

In welding copper alloys with TIG arc welding

A. Direct current with straight polarity is used

B. Direct current with reversed polarity is used

C. Alternating current is used

D. Any one of these

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4

Which of the following statement is wrong?

A. The mortise gauge has two scribing pins

B. The gouges are chisels with a hollow shaped blade

C. An auger is a planing tool

D. All of these

What is the correct answer?

4

In blanking operation, the clearance is provided on

A. Punch

B. Die

C. Half on the punch and half on the die

D. Either on punch or die depending upon designer's choice

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4

When filing soft metals, the file teeth are clogged with minute particles of metal. The file should be cleaned by

A. Washing it with water

B. Rubbing on wood

C. Washing it with dilute acid

D. Using file card

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4

If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be

A. 10 mm/m

B. 16 mm/m

C. 20 mm/m

D. 26 mm/m

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4

The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called

A. Shearing

B. Piercing

C. Punching

D. Blanking

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4

The material which can be best cut with oxygen cutting process is

A. Mild steel

B. Brass

C. Copper

D. Aluminium

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In a _________, the molten metal is poured and allowed to solidify while the mould is revolving.

A. Die casting method

B. Slush casting method

C. Permanent mould casting method

D. Centrifugal casting method

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4

The cross-section of a chisel is usually

A. Rectangular

B. Square

C. Hexagonal

D. Octagonal

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The electron beam welding can be carried out in

A. Open air

B. A shielded gas environment

C. Vacuum

D. A pressurised inert gas chamber

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4

A neutral flame is obtained by supplying

A. Equal volumes of oxygen and acetylene

B. More volume of oxygen and less volume of acetylene

C. More volume of acetylene and less volume of oxygen

D. None of the above

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4

During cold working process

A. Grain structure is distorted

B. Strength and hardness of metal increases

C. Close dimensional tolerance can be maintained

D. All of the above

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4

A sand employed on the faces of the pattern before moulding, is called

A. Green sand

B. Dry sand

C. Loam sand

D. Parting sand

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In a four high rolling mill, the diameter of backing up rolls is ________ the diameter of working rolls.

A. Equal to

B. Smaller than

C. Larger than

D. None of these

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The flux commonly used in brazing is

A. Zinc chloride

B. Ammonium chloride

C. Rosin plus alcohol

D. Borax

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During hot working of metals

A. Porosity of the metal is largely eliminated

B. Grain structure of the metal is refined

C. Mechanical properties are improved due to refinement of grains

D. All of the above

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4

A two high rolling mill consists of two rolls which rotate

A. At the same speed and in the same direction

B. At the same speed but in opposite direction

C. At different speeds and in the same direction

D. At different speeds and in the opposite direction

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4

The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as

A. Hot piercing

B. Extrusion

C. Cold peening

D. Cold heading

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4

The centrifugal casting method, is used for casting articles of

A. Symmetrical shape about vertical axis

B. Symmetrical shape about horizontal axis

C. Irregular shape

D. Nonferrous metal only

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4

A file removes the metal during

A. Forward stroke

B. Return stroke

C. Both forward and return strokes

D. None of these

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4

In permanent mould casting method

A. Molten metal is poured in a metallic mould, retained in the mould long enough for the outer skin to solidify and finally mould is turned over to remove molten metal still in molten condition

B. Molten metal is poured and allowed to solidify while the mould is revolving

C. Molten metal is forced into mould under high pressure

D. None of the above

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4

The property of sand due to which it evolves a great amount of steam and other gases is called

A. Collapsibility

B. Permeability

C. Cohesiveness

D. Adhesiveness

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4

For gas welding, the pressure desired at the welding torch for oxygen is

A. 7 to 103 kN/m²

B. 70 to 280 kN/m²

C. 280 to 560 kN/m²

D. 560 to 840 kN/m²

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4

A zinc diffusion process is called

A. Galvanising

B. Anodising

C. Parkerising

D. Sherardizing

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4

Lancing is the operation of

A. Cutting a sheet of metal in a straight line along the length

B. Removal of metal to the desired shape from the edge of a plate

C. Cutting a sheet of metal through part of its length and then bending the cut portion

D. Bending a sheet of metal along a curved axis

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4

When the dimension is expressed as, then the tolerance is

A. 0.035 mm

B. 0.025 mm

C. 0.01 mm

D. 0.06 mm

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A casting defect which occurs near the ingates as rough lumps on the surface of a casting is known as

A. Shift

B. Sand wash

C. Swell

D. Scab