A cylindrical job with diameter of 200 mm and height of 100 mm is to be cast using modulus method of riser design. Assume that the bottom surface of the cylindrical riser does not contribute as the cooking surface. If the diameter of the riser is equal to is height, then the height of the riser (in mm) is

Q. A side riser is to be designed for a hollow cylindrical casting of 50 mm inside diameter and 100 mm outside diameter. If the length of cylinder is 50 mm, the diameter of riser in mm is _____ .

Q. For producing a casting of size 300$\times$300$\times$100 mm, a side cylindrical riser is used. Determine the diameter of the riser assuming that the modulus of riser is 20% higher than modulus of casting.

Q. A casting of size 100 m × 100 mm × 50 mm is required. Assume volume shrinkage of casting as 2.6%. If the height of the riser is 80 mm and the desired riser volume is 4 times the shrinkage in casting, what is the appropriate riser diameter in mm?

Q. For sand-casting a steel rectangular plate with dimensions 80 mm × 120 mm × 20 mm, a cylindrical riser has to be designed. The height of the riser is equal to its diameter. The total solidification time for the casting is 2 minutes. In Chvorinov's law for the estimation of the total solidification time, exponent is to be taken as 2. For a solidification time of 3 minutes in the riser, the diameter (in mm) of the riser is (correct to two decimal places).

Q. A casting of cubical shaped structure is required with 60 mm side. Assume volume shrinkage of casting as 2.3%. If the height of the side riser is 30 mm and riser volume desired is 4 times the shrinkage in casting, then appropriate riser diameter (in mm) is