DRILLING - Quiz

1) What is the product obtained from blast furnace?

Pig iron Cast iron Wrought iron Malleable iron

2) Which metal is used to manufacture magnets, ball bearing and cutting tool?

Cobalt Cadmium Vanadium Molybdenum

3) How much copper contains in pyrites ore?

0.15 0.32 0.5 0.45

4) Which metal is resistant to many types of acids?

Tin Nickel Lead Chromium

5) What is the use of telescopic gauge?

Measure depth Measure external dimens Measure angular dimension Measure size of holes, slots