Assertion (A): The rate of flow of metal through sprue is NOT a function of the cross – sectional area of sprue runner and gate
Reason (R): If respective cross – sectional areas of sprue runner and gate are in the ratio of 1: 2: 2, the system is known as unpressurised gating system
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true