Explanation: Tensile tests is used to determine different kinds of mechanical properties like yield stress, elastic limit, maximum tensile strength, limit of proportionality.

Explanation: An axial load is applied to the material to be tested when performing tensile testing and the load is applied axially to the body to be tested.

Explanation: The formula for gauge length (Lo) is Lo= 5.65* root over of Area of cross section. We know that under root 4 is 2, therefore 5.65*2 is equal to 11.3 m.

Explanation: The length of the specimen does not affect the value of ultimate tensile strength. While the quality of surface finish, speed of testing, dimensional accuracy of the specimen affect the value of ultimate tensile strength.

Explanation: An extensiometer is a gauge which is attached to the specimen and it gives us the value of elongation in the body at a time. Feeler gauge and micrometer or clinometer cannot be used during the testing.

Explanation: Titanium ( Ti ) is a material which shows different amount of yielding when subjected to tensile testing compared to when it is subjected to compressive testing.

Explanation: A universal testing machine can be used to conduct tests like tension, compression, shear, friction, tear, stiffness. Many other such mechanical properties can be tested.

Explanation: Increase in temperature and increase in the number of axes for load application can affect the testing results in a tensile or compressive test.