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4

The property of sand due to which the sand grains stick together is called

A. Collapsibility

B. Permeability

C. Cohesiveness

D. Adhesiveness

Correct Answer :

C. Cohesiveness


Related Questions

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4

The operation of cutting of a flat sheet to the desired shape is called

A. Shearing

B. Piercing

C. Punching

D. Blanking

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4

A rip saw

A. Is a two man saw

B. Is used for cutting along the grains of wood

C. Has a narrow blade with two wooden handles

D. All of the above

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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

In sheet metal work, he cutting force on the tool can be reduced by

A. Grinding the cutting edges sharp

B. Increasing the hardness of tool

C. Providing shear on tool

D. Increasing the hardness of die

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4

The oxyacetylene gas used in gas welding produce a flame temperature of

A. 1800°C

B. 2100°C

C. 2400°C

D. 3200°C

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4

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

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4

In a four high rolling mill, there are four rolls out of which

A. One is working roll and three are backing up rolls

B. Two are working rolls and two are backing up rolls

C. Three are working rolls and one is backing up roll

D. All of the four are working rolls

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4

According to Indian standard specifications, 100 H6/g 5 means that.

A. Basic size is 100 mm

B. Actual size is 100 mm

C. Difference between the actual size and basic size is 100 mm

D. None of the above

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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

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4

During drawing operation, the states of stress in cup would include

A. Compressive stress in the flange

B. Tensile stress in the wall

C. Both (A) and (B)

D. None of these

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4

The temperature of the inner luminous cone of neutral flame is about

A. 1000°C

B. 1250°C

C. 2100°C

D. 3200°C

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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

The cold chisels are made by

A. Drawing

B. Rolling

C. Piercing

D. Forging

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4

The current in electric resistance welding can be regulated by

A. Varying the input supply

B. Changing the primary turns of the transformer

C. Changing the secondary turns of the transformer

D. Any one of the above

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4

For gas welding, the pressure desired at the welding torch for acetylene 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

The brass and bronze are welded by _________ flame.

A. Neutral

B. Oxidising

C. Carburising

D. All of these

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4

The binder commonly used in making oil sand, is

A. Clay type binder

B. Organic type binder

C. Inorganic type binder

D. Any one of these

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4

When more volume of acetylene and less volume of oxygen is supplied, then a ________ flame is obtained.

A. Neutral

B. Oxidising

C. Carburising

D. None of these

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4

Lap joints are employed on plates having thickness

A. Less than 3 mm

B. 5 to 10 mm

C. 12.5 mm

D. Above 25 mm

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4

The mode of deformation of the metal during spinning is

A. Bending

B. Stretching

C. Rolling and stretching

D. Bending and stretching

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4

Cutting and forming operations can be performed in a single operation in a

A. Simple die

B. Progressive die

C. Compound die

D. Combination die

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4

In welding magnesium with TIG arc welding, direct current with _________ is used.

A. Straight polarity

B. Reversed polarity

C. Both (A) and (B)

D. None of these

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4

In submerged arc welding, an arc is produced between a

A. Carbon electrode and the work

B. Metal electrode and the work

C. Bare metal electrode and the work

D. Two tungsten electrodes and the work

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4

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

Which of the following statement is wrong?

A. The angular clearance on dies varies from 0.5° to 1°

B. In drawing operation, the metal flows due to plasticity

C. In press operation, the size of the pierced hole is independent of the size of punch

D. None of the above

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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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4

In a hot chamber die casting machine

A. Ferrous alloys with low melting temperature are casted

B. Ferrous alloys with high melting temperature are casted

C. Nonferrous alloys with low melting temperature are casted

D. Nonferrous alloys with high melting temperature are casted

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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

A progressive limit gauge has

A. 'Go' and 'Not go' member on the same side of the gauge

B. Separate 'Go' and 'Not go' members

C. 'Go' member at one end and 'Not go' member at the other end

D. None of the above

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4

The electrode tip diameter (d) in spot welding should be equal to (where t = Thickness of plate to be welded)

A. t

B. 1.5 t

C. 3 t

D. 6 t