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1.
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.
2.
The point through which the resultant of the disturbed gravity force passes regardless of the orientation of the body in space is called:
3.
It is a measure of the stiffness of a material determined by the slope of the straight-line portion of the stress-strain curve
4.
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:
5.
It is the measure of the total resistance to sliding
6.
A steel bar 50 mm in diameter and 2 m long is surrounded by a shell of cast iron 5 mm thick. Compute the load that will compress the combined bar a total of 0.8 mm in the length of 2m. For steel E = 200 GPa, and for cast iron E = 100 GPa
7.
It is the point at which there is an appreciable elongation of the material without any corresponding increase of load.
8.
The hardness of steel may be increased by heating to approximatelyv1500°F and quenching in oil or water if
9.
These are components of the total resistance to sliding the portion to one side of the exploratory section past the other
10.
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
11.
It describes the luminous flux incidence per unit area and is expressed in lumens per square meter.
12.
It is the indication of the resistance of a material to indentation by a penetrator
13.
A steel rod having a cross-sectional area of 300 sq. Meters and a length of 150 m is suspended vertically from one end. It supports a tensile load of 20 kN at the lower end. If the unit mass of steel is 7850 kg/m^3 and E = 200×10^3 MN/m^2, find the total elongation of the rod
14.
Find the elongation in a 3m long steel bar by subjecting it to 50 Mpa stress. E=200 Gpa
15.
The proportional limit is the value of stress on the stress-strain diagram curve at which the curve first deviates from a straight line.
16.
It is a measure of the resistance that a body’s mass and distribution of its mass about the axis of rotation. This property is known as
17.
The property of the body which measures its resistance to changes in motion.
18.
Ivory soap floats in water because
19.
It occurs when a member carries a load perpendicular to its long axis while being supported in a stable manner
20.
This component measures the pulling (or pushing) action perpendicular to the section
