Workshop Technology - Study Mode

[#156] During drawing operation, the states of stress in cup would include
Correct Answer

(C) Both (A) and (B)

Explanation

Solution: The stress in the flange region during the deep drawing process is a combination of radial tensile drawing stress and a tangential compressive stress. The blank-holder at the top of the workpiece exerts a compressive force at the upper surface of the blank during the drawing process.

[#157] In a _______, the molten metal is poured and allowed to solidify while the mould is revolving.
Correct Answer

(D) Centrifugal casting method

Explanation

Solution: In the centrifugal casting process, molten metal is poured into a preheated, spinning die. The die may be oriented either on a vertical or horizontal axis depending on the configuration of the desired par

[#158] A sand employed on the faces of the pattern before moulding, is called
Correct Answer

(D) Parting sand

Explanation

Solution: A pure silica sand employed on the faces of the pattern before moulding is known as parting sand. When the pattern is withdrawn from the mould, the moulding sand sticks to it. To avoid sticking, parting sand is sprinkled on the pattern before it is embedded in the moulding sand

[#159] The mode of deformation of the metal during spinning is
Correct Answer

(D) Bending and stretching

Explanation

Solution: The mode of deformation of the metal during spinning is Bending and stretching

[#160] The material which can be best cut with oxygen cutting process is
Correct Answer

(A) Mild steel

Explanation

Solution: The material which can be best cut with oxygen cutting process is Mild steel