CFJT quiz 2

What is the process, in which the metal is caused to flow through a restricted orifice to create an extremely elongated strip of uniform and comparatively smaller cross-sectional area, called?

• Rolling

• Extrusion

• Drawing

• Spinning

The pattern used for mass production is

• single plate

• split pattern

• skeleton pattern

• match plate pattern

The amount of draft required does not depends upon

• shape and size of casting

• moulding method

• material of pattern

• method of production

The low permeability in sand can cause which of the following defects in casting

• Rough surface

• Blow holes

• hot tears

• Drop

The property of sand due to which gas and steam escapes from sand is

• cohesiveness

• adhesiveness

• permeability

• Flowabilty