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4

In a simple die

A. Two or more operations are performed simultaneously at the single stroke of the ram

B. Two or more cutting operations are performed at one station of the press in every stroke of the ram

C. Both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram

D. None of the above

Correct Answer :

D. None of the above


Related Questions

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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

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

To prevent the body of the blade from jamming in the saw cut, the teeth of blade are

A. Strengthened

B. Sharpened

C. Set

D. All of these

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4

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

Carburising flame is used to weld

A. Steel, cast iron, copper, aluminium etc

B. Brass and bronze

C. Hard surfacing materials such as stellite

D. All of these

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4

Seam welding is best adopted for metal thickness ranging from

A. 0.025 to 3 mm

B. 3 to 5 mm

C. 5 to 8 mm

D. 8 to 10 mm

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4

In a cold chamber die casting machine

A. Melting pot is separate from the machine

B. Melting pot is an integral part of the machine

C. Melting pot may have any location

D. Low temperature and pressure is used

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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

A hacksaw blade is specified by its

A. Length

B. Material

C. Width

D. Number of teeth

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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

Galvanising is a

A. Zinc diffusion process

B. Process of coating zinc by hot dipping

C. Process used for making thin phosphate coating on steel

D. None of the above

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4

A taper provided on the pattern for its easy and clean withdrawal from the mould is known as

A. Machining allowance

B. Draft allowance

C. Shrinkage allowance

D. Distortion allowance

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4

Which of the following methods can be used for manufacturing 2 metre long seamless metallic tubes?

A. Drawing

B. Extrusion

C. Rolling

D. Extrusion and rolling

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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

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

A pattern maker's shrinkage rule considers

A. All pattern allowances

B. Only shrinkage allowance

C. All materials to be cast

D. All materials of the pattern

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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

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

In a centrifugal casting method

A. Core is made of sand

B. Core is made of ferrous metal

C. Core is made of nonferrous metal

D. No core is used

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4

For cutting brass, the hacksaw blade should have __________ teeth per 25 mm.

A. 14

B. 24

C. 32

D. 40

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4

Green 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

A moving mandrel is used in

A. Wire drawing

B. Tube drawing

C. Metal cutting

D. Forging

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4

The increase in hardness due to cold working, is called

A. Age hardening

B. Work hardening

C. Induction hardening

D. Flame hardening

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4

The process of increasing the cross-section of a bar at the expense of its length, is called

A. Drawing down

B. Upsetting

C. Spinning

D. Peening

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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

The dowels are

A. Wooden nails

B. Box nails

C. Wire nails

D. None of these

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4

The hot 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

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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

Swab is used for

A. Smoothing and cleaning out depressions in the mould

B. Cleaning the moulding sand

C. Moistening the sand around the edge before removing pattern

D. Reinforcement of sand in the top part of the moulding box

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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