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Metal-casting Questions Set 26:

Quiz Mode

Through which part metal enters a runner that leads into the main cavity?

Downsprue

Riser

Pouring Cup

Core

Solution:

Which of the following is used to create internal cavities or passages in a casting?

Chill

Vent rod

Chaplet

Core

Solution:

If the melting ratio of a cupola is 10:1, then the coke requirement for one-ton melt will be

0.1 ton

10 tons

1 ton

11 tons

Solution:

Which casting process is used to make hollow castings with thin walls?

Slush casting

Centrifugal casting

Die casting

Shell moulding

Solution:

Which of the following devices fills the flask uniformly with sand under a high-pressure stream?

Chores

Chills

Patterns

Sand slingers

Solution:

In sand casting, the fluidity of the molten metal increases with

increases in sand grain size

increases in degree of superheat

decrease in pouring rate

increases in thermal conductivity of the mould

Solution:

Pressure in the molten metal stream should not fall below the atmospheric pressure. This is essential to avoid which effect?

atmospheric air effect

respiration effect

aspiration effect

all of the above

Solution:

What is the primary cause of gas holes in castings?

Very high pouring temperature of the metal

Insufficient fluidity of the molten metal

Absorption of gases by the liquid metal

Improper alignment of the mold flasks

Solution:

We have been given a top gated mold with the Sprue Height given as 10 cm, and the Cross-Sectional Area of Sprue Base given as 2.5 cm². Find the flow rate of metal into the mold cavity.

300 cm^3/s

350 cm^3/s

250 cm^3/s

400 cm^3/s

Solution:

Consider a sphere of diameter 'D' and a cylinder made from the same sphere by melting and recasting (assume no material loss). The height of the cylinder is fixed, and its value is (2*d/3). What is the correct value of the solidification time ratio of the cylinder and the sphere? (d = diameter of the cylinder, the value of the exponent in Chvorinov's rule is 2)

36/49

49/36

25/36

36/25

Metal-casting Questions Set 26:

Through which part metal enters a runner that leads into the main cavity?

Solution:

Which of the following is used to create internal cavities or passages in a casting?

Solution:

If the melting ratio of a cupola is 10:1, then the coke requirement for one-ton melt will be

Solution:

Which casting process is used to make hollow castings with thin walls?

Solution:

Which of the following devices fills the flask uniformly with sand under a high-pressure stream?

Solution:

In sand casting, the fluidity of the molten metal increases with

Solution:

Pressure in the molten metal stream should not fall below the atmospheric pressure. This is essential to avoid which effect?

Solution:

What is the primary cause of gas holes in castings?

Solution:

We have been given a top gated mold with the Sprue Height given as 10 cm, and the Cross-Sectional Area of Sprue Base given as 2.5 cm². Find the flow rate of metal into the mold cavity.

Solution:

Solution:

Related Question Sets:

Related Topics:

Metal-casting Questions Set 26:

Through which part metal enters a runner that leads into the main cavity?

Solution:

Which of the following is used to create internal cavities or passages in a casting?

Solution:

If the melting ratio of a cupola is 10:1, then the coke requirement for one-ton melt will be

Solution:

Which casting process is used to make hollow castings with thin walls?

Solution:

Which of the following devices fills the flask uniformly with sand under a high-pressure stream?

Solution:

In sand casting, the fluidity of the molten metal increases with

Solution:

Pressure in the molten metal stream should not fall below the atmospheric pressure. This is essential to avoid which effect?

Solution:

What is the primary cause of gas holes in castings?

Solution:

We have been given a top gated mold with the Sprue Height given as 10 cm, and the Cross-Sectional Area of Sprue Base given as 2.5 cm2. Find the flow rate of metal into the mold cavity.

Solution:

Solution:

Related Question Sets:

Related Topics:

We have been given a top gated mold with the Sprue Height given as 10 cm, and the Cross-Sectional Area of Sprue Base given as 2.5 cm². Find the flow rate of metal into the mold cavity.