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4

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

A. Actual deviation

B. Upper deviation

C. Lower deviation

D. Fundamental deviation

Correct Answer :

B. Upper deviation


Related Questions

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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

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 process of decreasing the cross-section of a bar and increasing its length, is called

A. Drawing down

B. Upsetting

C. Spinning

D. Peening

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4

Cast iron and steel pipes are produced by

A. Slush casting

B. Investment casting

C. True centrifugal casting

D. Die casting

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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

The cross-section of a chisel is usually

A. Rectangular

B. Square

C. Hexagonal

D. Octagonal

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4

Thermit welding is often used in

A. Replacing broken gear teeth

B. Repairing broken shears

C. Joining rails, truck frames and locomotive frames etc.

D. All of the above

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4

When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as

A. Die casting method

B. Slush casting method

C. Permanent mould casting method

D. Centrifugal casting method

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4

The draft or taper allowance on casting is generally

A. 1 to 2 mm/m

B. 2 to 5 mm/m

C. 5 to 10 mm/m

D. 10 to 15 mm/m

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4

The operation of straightening a curved sheet metal, is known as

A. Drawing

B. Squeezing

C. Coining

D. Planishing

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4

The temperature produced by oxy-hydrogen flame is about

A. 1800°C

B. 2100°C

C. 2400°C

D. 3200°C

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4

In electric resistance welding, pressure applied varies from

A. 1 to 5 MPa

B. 5 to 10 MPa

C. 10 to 25 MPa

D. 25 to 55 MPa

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4

Structural sections such as rails, angles, I-beams are made by

A. Hot rolling

B. Hot drawing

C. Hot piercing

D. Hot extrusion

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4

The flux commonly used in brazing is

A. Zinc chloride

B. Ammonium chloride

C. Rosin plus alcohol

D. Borax

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4

In backhand welding, the angle between the welding rod and the work is ________ as compared to forehand welding.

A. Same

B. Less

C. More

D. None of these

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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

Piercing is an operation of cutting

A. A cylindrical hole in a sheet of metal by the punch and the die

B. A hole (other than cylindrical) in a sheet of metal by the punch and the die

C. A flat sheet to the desired shape

D. A number of holes evenly spaced in a regular pattern on a sheet of metal

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4

According to Indian standards, the total numbers of tolerance grades are

A. 8

B. 12

C. 18

D. 20

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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

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

Riddle 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 moulding box

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4

In a hot 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. High temperature and pressure is used

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4

In a _________, both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram.

A. Simple die

B. Progressive die

C. Combination die

D. Compound die

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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

For welding plates of thickness more than 12.5 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

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

Neutral flame is used to weld

A. Steel

B. Cast iron

C. Copper

D. All of these

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4

In a ________, two or more operations are performed simultaneously at the single stroke of the ram.

A. Simple die

B. Progressive die

C. Combination die

D. Compound die

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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

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