Which of the following can not be determined directly from a

Which of the following can not be determined directly from a tension test? Modulus of Elasticity Impact Strength Ultimate Strength Ductility Which of the following is the primary factor in determining it sheet metal bent and formed with out experiencing cracks or fracture? Martensitic structure Surface hardness Modulus of Elasticity Ductility Which of the following steel microstructures has the lowest hardness? Pearlite Ferrite Bainite Martensite What is the repeat unit(mer) molecular weight for poly vinyl chloride (PVC)? Atomic weight of carbon is 12.0 and atomic weight of chlorine is 35. 52 62 72 82

Solution

1. Impact strength can not be measured directly from a tensile test.
ANSWER : b

2. Ductility determines if the sheet metal can be bent and formed without cracks or not.
ANSWER : d

3. Ferrite has the lowest hardness.
ANSWER : b