01. What is the function of cores in the casting process?
To make holes and cavities.
02. A draft allowance is provided to _____
Only the dimensions that are perpendicular to the parting plane.
03. The function of a gated pattern is ______
To produce small castings in mass production.
04. Which among the following wood is most widely used for making patterns?
White Pine.
05. Core boxes are made out of which pattern?
Plaster pattern.
06.Which type of pattern should be used for making stuffing box of steam engine?
One piece pattern.
07. Piston rings are produced using which pattern?
Match plate pattern.
08.The preferred shape of a runner in a sand casting is ___________
Trapezoidal.
09. Gimlet is which of the following tool?
10.Which of the following pattern making machine works on two pulleys?
Band saw.
11.Cast surfaces which are yet to be machined are imparted with
red colour.
12. Which colour is given to the cast surfaces which are to be left not-machined?
Black.
13.Which colour is given to core prints seats?
Yellow.
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