Sand grains which give high mould strength are

Related MCQs

• The strength of the sand is high if grains are
• Moulding sand properties that depend upon size and shape of grains and bonding material are
• The moulding tool used for finishing/repairing the sand mould after pattern withdrawal is termed as
• The hardness of the mould is affected by the proportion of ingredients in the sand and
• The tool used to make small holes in the sand mould to allow passage of gases/steam is known as
• Rammer used for moulding the sand in large mould known as
• The rammer used for packing the sand in pockets/corners of a mould is known as
• The defect known as 'drop' occurs when the upper surface of the mould cracks and pieces of sand fall into the molten metal. This defect occurs due to
• Sand acquires a predetermined shape under pressure and retains the same when pressure is removed. This is due to the property of sand known as
• As compared to green sand in shell moulding cooling rate of cast metal is slow. Hence as compared to green sand castings, shell moulded castings will have