Correct answer is (a) True
To explain: Jolt and squeezing is a combination of jolting and squeezing. First of all jolting is done followed by squeezing. If the height of mold is less than 200 mm, throughout the depth of mold uniform strength is achieved. If the height of mold is more than 200 mm, the force will not transmit to the middle portion of mold hence, less strength at center.