Questions

The following crystal structure shown below is called:

a$)$ BCC

b$)$ FCC

c$)$ HCP

Which of the following hardness test using a diamond shape indenter?

d$)$ Vickers Hardness Test

e$)$ Brinell Hardness Test

f$)$ Rockwell Hardness Test

Ceramic has the following properties, except:

a$)$ hard and brittle

b$)$ low melting point

c$)$ high electrical resistance

The following mechanical property will increase due to increasing the

temperature of metal:

a$)$ yield strength

b$)$ modulus of elasticity

c$)$ toughness

$8$ Which component in gating system is used as the entrance of molten metal and to

minimize the splash during pouring the molten metal:

a$)$ Sprue

b$)$ Riser

c$)$ Vent

d$)$ Pouring Cup

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