Testing of Materials

Question 1

What Are The Objectives of Testing (3)

Answer 1

To Provide Design Data
To Assist With Material Selection
To Ensure That A Material Conforms To A Standard

Question 2

What Are The Requirements of Testing Method (2)

Answer 2

Reproductibility

Repeatability

Question 3

What Are The Different Building Standards (4)

Answer 3

BSI - British Standards Institution
ASTM - American Society for Testing Materials
ISO - International Standards Organisation
CEN - European Standards Committee

Question 4

What Are The Two Mechanical Testing Classifications

Answer 4

Destructive

Non Destructive

Question 5

On The Tensile Test Graph, What Are The Various Values

Answer 5

A - Elastic Limit
AO - Hooke’s Law, Stress Is Proportional To Strain.
Y - Yield Stress
U - Ultimate Tensile Stress

Question 6

The Gradient on The Tensile Test Graph Is…

Answer 6

Young;s Modulus - Stiffness.

Question 7

What Is Proof Stress

Answer 7

Stress That Will Produce A Given Plastic Strain In The Material.

Used In The Same Way As Yield Stress

Question 8

How do we calculate the cross sectional area

Answer 8

diameter divided by 2 to get the radius. radius squared (times by it’s self) x 3.14 (PII)

Question 9

diameter divided by 2 to get the radius. radius squared (times by it’s self) x 3.14 (PII)… is the equation for

Answer 9

calculating the cross sectional area.

Question 10

How do we calculate stress

Answer 10

force (n/mm2) divide cross sectional area

Question 11

force (n/mm2) divide cross sectional area… is the calculation for

Answer 11

stress

Question 12

what is the basic si unit for stress

Answer 12

Pascal

Question 13

Pascal is the basic si unit for…

Answer 13

stress