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1.
The property of the body which measures its resistance to changes in motion.
2.
It is a measure of the stiffness of a material determined by the slope of the straight-line portion of the stress-strain curve
3.
The property by virtue of which a body tends to return to its original size and shape after a deformation and when the deforming forces have been removed.
4.
Find the elongation in a 3m long steel bar by subjecting it to 50 Mpa stress. E=200 Gpa
5.
It is the value of stress on the stress-strain curve at which there is a significant increase in strain with little or no increase in stress
6.
Ivory soap floats in water because
7.
The specific gravity of the substance is the ratio of the density of the substance to the density of water. Another term for specific gravity is:
8.
The ratio of shearing stress to shearing strain is called
9.
A leak from a faucet comes out in separate drops. Which of the following is the main cause of this phenomenon
10.
It is the value of stress on the stress-strain curve at which the material has deformed plastically; that is, it will no longer return to its original size and shape after removing the load
11.
A process of welding metals in molten or in vaporous state without application of mechanical pressure or blow. Such welding may be accomplished by the oxyacetylene or by hydrogen flame or by electric arc. It is called:
12.
This implies the resistance to shock or difficulty of breaking and express the work per unit volume required to fracture a materia
13.
The property by virtue of which a body tends to return to its original size or shape after a deformation and when the deforming forces have been removed
14.
The proportional limit is the value of stress on the stress-strain diagram curve at which the curve first deviates from a straight line.
15.
It is the value of stress on the stress-strain curve at which there is a significant increase in strain with little or no increase in stress
16.
A ductile material is one that can be stretched, formed, or drawn to a significant degree before fracture. A metal that exhibits a percent elongation greater than ____ % is considered to be ductile
17.
It is the point at which there is an appreciable elongation of the material without any corresponding increase of load.
18.
The ratio of the uniform triaxial stresses, to the change in volume at equal stress in all directions is:
19.
A solid steel shaft is not to twist through more than 3 degrees in a 6 m length when subjected to a torque of 12 kN.m. What maximum shearing stress is developed? Use G=83GPa
20.
The reciprocal of bulk modulus of any fluid is called
