Q290
Delta metal is an alloy of
A.
Copper, zinc and iron
AnswerB.
Iron, nickel and copper
C.
Iron, lead and tin
D.
Iron, aluminium and magnesium
Answer: Option A
Solution
Answer: Option A
Solution:
A brass alloy consisting of copper (55%), zinc (41 - 43%) and iron (1 - 3%), with the balance consisting of various other metals.The proportions used make the material harder and suitable for valves and bearings.