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What is the correct answer?

4

The purpose of a gate is to

A. Delivers molten metal into the mould cavity

B. Act as a reservoir for the molten metal

C. Feed the molten metal to the casting in order to compensate for the shrinkage

D. Delivers molten metal from pouring basin to gate

Correct Answer :

A. Delivers molten metal into the mould cavity


Related Questions

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4

The directional solidification in casting can be improved by using

A. Chills and chaplets

B. Chills and padding

C. Chaplets and padding

D. Chills, chaplets and padding

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4

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

In order to get uniform thickness of the plate by rolling process, one provides

A. Camber on the rolls

B. Offset on the rolls

C. Hardening of the rolls

D. Antifriction bearings

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4

Spot welding is used for welding

A. Lap joints in plates having 0.025 mm to 1.25 mm thickness

B. Lap joints in plates having thickness above 3 mm

C. Butt joints in plates having 0.025 mm to 1.25 mm thickness

D. Butt joints in plates having thickness above 3 mm

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4

The cold chisels are made by

A. Drawing

B. Rolling

C. Piercing

D. Forging

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4

A file with 20 teeth in 25 mm is called

A. Rough file

B. Bastard file

C. Second cut file

D. Smooth file

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4

A hacksaw blade is specified by its

A. Length

B. Material

C. Width

D. Number of teeth

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4

In forehand welding, the angle between the welding rod and the work is kept as

A. 30°-40°

B. 40°-50°

C. 50°-60°

D. 60°-70°

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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

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4

Thread rolling is restricted to

A. Ferrous materials

B. Ductile materials

C. Hard materials

D. None of these

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4

In average work, the tolerance produced by investment casting method is

A. ±0.05 mm

B. +0.2 mm

C. +05 mm

D. +1 mm

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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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4

In die casting, machining allowance is

A. Small

B. Large

C. Very large

D. Not provided

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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 welding process used to join the ends of two pipes of uniform cross-section, is

A. Spot welding

B. Seam welding

C. Projection welding

D. Upset butt welding

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4

In order to check the clearance between two mating surfaces, a ________ gauge should be used.

A. Ring

B. Plug

C. Feeler

D. None of these

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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

The cutting edge of a chisel should be

A. Hardened

B. Tempered

C. Hardened and tempered

D. Case hardened

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4

Blanking and piercing operations can be performed simultaneously in a

A. Simple die

B. Progressive die

C. Compound die

D. Combination die

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4

The shrinkage allowance for cast iron pattern is

A. 10 mm/m

B. 16 mm/m

C. 20 mm/m

D. 26 mm/m

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4

For welding plates of thickness less than 5 mm, its edges

A. Do not require bevelling

B. Should be bevelled to a single-V or U-groove

C. Should have a double-V or U-groove on one side

D. Should have a double-V or U-groove on both sides

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4

In a unilateral 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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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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4

The most preferred process for casting gas turbine blades is

A. Die casting

B. Shell moulding

C. Investment moulding

D. Sand casting

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4

The algebraic difference between the minimum limit and the basic size is called

A. Actual deviation

B. Upper deviation

C. Lower deviation

D. Fundamental deviation

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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

A ring gauge is used to

A. Check the diameter of shafts or studs

B. Test the accuracy of holes

C. Check the clearance between two mating surfaces

D. All of the above

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4

When the file is moved to and fro over the work, it is known as

A. Cross filing

B. Draw filing

C. Pull and push filing

D. None of these

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4

Thermit, used in Thermit welding, is a mixture of

A. Charcoal and iron oxide

B. Charcoal and aluminium

C. Iron oxide and aluminium

D. Charcoal, iron oxide and aluminium

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4

The welding process used in joining mild steel shanks to high speed drills, is

A. Spot welding

B. Seam welding

C. Flash butt welding

D. Upset butt welding