Author Question: What does an alloy of tin and copper make, an alloy of zinc and copper? A) Bronze and brass B) ... (Read 178 times)

Sportsfan2111 · **on:** Jul 26, 2018

What does an alloy of tin and copper make, an alloy of zinc and copper?

A) Bronze and brass
B) High temperature solder and galvanizing compound
C) Brass and bronze
D) Bronze and die cast

Question 2

The dead center needs to be frequently adjusted between cuts because the:

A) Heat from machining expands the work and tightens it
B) Machine adjustments often vibrate loose during machining operations, so that frequent attention is necessary
C) Lubricating oil runs out
D) Metal in the workpiece center wears and causes the centers to become loose