Home
Current Affairs January 2024

What is the correct answer?

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

Correct Answer :

B. Draft allowance


Related Questions

What is the correct answer?

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

What is the correct answer?

4

The temperature produced by oxy-hydrogen flame is about

A. 1800°C

B. 2100°C

C. 2400°C

D. 3200°C

What is the correct answer?

4

The cold chisels are made by

A. Drawing

B. Rolling

C. Piercing

D. Forging

What is the correct answer?

4

The cross-section of a chisel is usually

A. Rectangular

B. Square

C. Hexagonal

D. Octagonal

What is the correct answer?

4

The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is

A. Less than 0.1 percent

B. Less than 0.3 percent

C. More than 0.3 percent

D. Anywhere between 0.1 to 1 percent

What is the correct answer?

4

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

A. Shearing

B. Piercing

C. Punching

D. Blanking

What is the correct answer?

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

What is the correct answer?

4

The maximum flame temperature occurs

A. At the outer cone

B. At the inner cone

C. Between the outer and inner cone

D. At the torch tip

What is the correct answer?

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

What is the correct answer?

4

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

A. Hot rolling

B. Hot drawing

C. Hot piercing

D. Hot extrusion

What is the correct answer?

4

In TIG arc welding, the welding zone is shielded by an atmosphere of

A. Helium gas

B. Argon gas

C. Either (A) or (B)

D. None of these

What is the correct answer?

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

What is the correct answer?

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

What is the correct answer?

4

For obtaining a cup of diameter 25 mm and height 15 mm by drawing, the size of the round blank should be approximately

A. 42 mm

B. 44 mm

C. 46 mm

D. 48 mm

What is the correct answer?

4

A gimlet is a ________ tool.

A. Boring

B. Marking

C. Cutting

D. None of these

What is the correct answer?

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

What is the correct answer?

4

Which of the following material can be used for making patterns?

A. Aluminium

B. Wax

C. Lead

D. All of these

What is the correct answer?

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

What is the correct answer?

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

What is the correct answer?

4

In a compound die

A. Only one operation is performed at each stroke of the ram

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

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

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

What is the correct answer?

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

What is the correct answer?

4

When a pattern is made in three parts, the ________ is known as a drag.

A. Bottom part

B. Middle part

C. Top part

D. None of these

What is the correct answer?

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

What is the correct answer?

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

What is the correct answer?

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

What is the correct answer?

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

What is the correct answer?

4

In order to ram the sand harder at the back of the mould and softer on the pattern face, a ________ is used.

A. Sand slinger

B. Squeezing machine

C. Jolt machine

D. Stripper plate machine

What is the correct answer?

4

The recrystallisation temperature of steel is

A. 400°C

B. 600°C

C. 800°C

D. None of these

What is the correct answer?

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

What is the correct answer?

4

Rotary swaging

A. Is extensively used for making bolts and rivets

B. Is used for reducing the diameters of round bars and a tube by rotating dies which open and close rapidly on the work

C. Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface

D. Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part