MD 9 Eng.Mat. 2 Pt.2

What do impact tests determine?

• creep strength

• hardness

• toughness

• yield strength

Constantan is an alloy of ___/

• copper and aluminum

• nickel and chormium

• aluminum and nickel

• copper and nickel

What is the carbon content range of SAE 4140 chrome-moly steel after heat treatment?

• 0.30/0.45

• 0.38/0.43

• 0.38/0.45

• 0.30/0.50

SAE 51XXX belongs to the ___ steel/family.

• carbon

• chromium

• manganese

• nickel

Which of the following gasket material which should avoid hot liquid/steam applications?

• asbestos fiber

• nylon fiber

• rubberized

• wool

Which of the following that describes the same material properties all over/direction and at any particular point in a structural member?

• heterogenous

• homogenous

• isentropic

• isotropic

A white metal, almost as bright as silver and is malleable and ductile and can be welded.

• nickel

• aluminum

• white iron

• lead

It is a silvery dull, soft metal and the second lightest of all metals used in the industry.

• nickel

• aluminum

• white iron

• lead

The least among iron ores for its contains many impurities, poor in iron content and commonly used in England.

• hematite

• magnetite

• limonite

• siderite

Which of the following is not considered to be precious metal?

• silver

• gold

• platinum

• steel