Multiple Choice
A sprue is
A) A process of cleaning castings
B) A chemical added to molten materials to get sound castings
C) A tool used in mould repairing
D) A special type of non-ferrous core used in centrifugal castings only
E) A vertical passage through the cope and connecting the pouring basin to the runner or gate
Correct Answer:
Verified
Correct Answer:
Verified
Q4: Gear tooth vernier is used to measure<br>A)Pitch
Q5: A time switch is<br>A)A switch which operates
Q6: A good cutting action is indicated by<br>A)High
Q7: Greater proportion of heat in a cutting
Q8: The stake used for making conical shapes
Q10: Out of the following materials which one
Q11: Severe quenching may lead to<br>A)superficial hardness<br>B)blow holes<br>C)formation
Q12: Which of the following process connot be
Q13: A stub tooth is one that is<br>A)Thicker
Q14: Carbon tool steels generally loose their hardness