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4

In shielded arc welding

A. Large electrode is used

B. Welding rod coated with slag is used

C. Welding rod coated with fluxing material is used

D. None of the above

Correct Answer :

C. Welding rod coated with fluxing material is used


Related Questions

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The type of file used for a wood work is

A. Single cut file

B. Double cut file

C. Rasp cut file

D. Any one of these

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4

The cutting edge of a chisel should be

A. Hardened

B. Tempered

C. Hardened and tempered

D. Case hardened

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4

The instrument which has all the features of try-square, bevel protractor, rule and scriber, is

A. Outside micrometer

B. Inside micrometer

C. Depth gauge micrometer

D. Combination set

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4

In order to deliver molten metal from pouring basin to gate, a ________ is used.

A. Riser

B. Sprue

C. Core

D. None of these

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Which of the following welding method uses a pool of molten metal?

A. Carbon arc welding

B. Submerged arc welding

C. TIG arc welding

D. MIG arc welding

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4

The chisel used for cutting key ways is

A. Flat chisel

B. Cape chisel

C. Round nose chisel

D. Diamond pointed chisel

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4

Loam sand is a mixture of

A. 30% sand and 70% clay

B. 50% sand and 50% clay

C. 70% sand and 30% clay

D. 90% sand and 10% clay

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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 minimum size of a bloom is

A. 5 cm × 5 cm

B. 10 cm × 10 cm

C. 15 cm × 15 cm

D. 20 cm × 20 cm

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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

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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 diamond pointed chisel is used for cutting

A. Flat surfaces

B. Grooves

C. Keyways

D. V-shaped grooves

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4

In a cold chamber die casting machine, only nonferrous alloys with _________ are casted.

A. Low melting temperature

B. High melting temperature

C. Both (A) and (B)

D. None of these

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4

The metal patterns as compared to wooden patterns require less

A. Shrinkage allowance

B. Machining allowance

C. Draft allowance

D. Distortion allowance

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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

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

Notching 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

The electrodes used in spot welding have a tip of

A. Stainless steel

B. Aluminium

C. Copper

D. Brass

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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

The teeth of hacksaw blade are bent

A. Towards right

B. Towards left

C. Alternately towards right and left and every third or fourth left straight

D. May be bent in any direction

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4

Scribing block is used to

A. Hold the round bars during marking

B. Check the trueness of flat surfaces

C. Locate the centres of round bars

D. Check the surface roughness

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The welding set up is said to have straight polarity, when

A. Work is connected to the positive terminal and the electrode holder to the negative terminal

B. Work is connected to the negative terminal and the electrode holder to the positive terminal

C. Work is connected to the positive terminal and the electrode holder is earthed

D. Work is connected to the negative terminal and the electrode holder is earthed

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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

A casting defect which occurs due to improper venting of sand is known as

A. Cold shuts

B. Blow holes

C. Shift

D. Swell

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The recrystallisation temperature of steel is

A. 400°C

B. 600°C

C. 800°C

D. None of these

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Metal patterns are used for

A. Small castings

B. Large castings

C. Complicated castings

D. Large scale production of castings

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In a bilateral system of tolerance, the tolerance is allowed on

A. One side of the actual size

B. One side of the nominal size

C. Both sides of the actual size

D. Both sides of the nominal size

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For arc welding

A. Alternating current with high frequency is used

B. Alternating current with low frequency is used

C. Direct current is used

D. Any one of these

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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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The cold working of metals is carried out

A. At the recrystallisation temperature

B. Below the recrystallisation temperature

C. Above the recrystallisation temperature

D. At any temperature