Admiralty metal is an alloy of not less than 70 percent copper, about 1 percent tin, small amounts of other elements, and the balance zinc; tin brass.
Admiralty metal shrinks most from molten state to solid state
Answer: Option 3
When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as Permanent mould casting method
Answer: Option 2
This is a well established and extremely versatile method of welding. Submerged-arc welding (SAW) involves the formation of an arc between a continuously fed electrode and the...