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1.
The point through which the resultant of the disturbed gravity force passes regardless of the orientation of the body in space is called:
2.
Determine the elongation in a helical steel spring composed of 20 turns of 20 mm-diamter wire on a mean radius of 80 mm when tha spring is supporting a load of 2 kN. Use G = 83 GPa
3.
Kinematic viscosity in SI derived unit is described as:
4.
It is a measure of the stiffness of a material determined by the slope of the straight-line portion of the stress-strain curve
5.
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
6.
These are components of the total resistance to sliding the portion to one side of the exploratory section past the other
7.
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
8.
The ratio of the uniform triaxial stresses, to the change in volume at equal stress in all directions is:
9.
It is the highest value of apparent stress on the stress-strain curve.
10.
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.
11.
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
12.
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
13.
It occurs when a member carries a load perpendicular to its long axis while being supported in a stable manner
14.
A certain support stand design to carry downward loads. Compute the stress in the square shaft at the upper part of the stand for a load of 27,000 lb. The line of action of the applied of the applied load is centered on the axis on the shaft, and the load is applied through a thick plate that distributes the force to the entire cross section of the stand.
15.
It is the point at which there is an appreciable elongation of the material without any corresponding increase of load.
16.
The hardness of steel may be increased by heating to approximatelyv1500°F and quenching in oil or water if
17.
A solid steel shaft 5 m long is stressed to 80 MPa when twisted through 4 degrees. Using G = 83 GPa, compute the shaft diameter.
18.
It is the ability of a material to absorbed applied energy without failure
19.
What is the theoretical maximum value of Poisson’s ratio of any given material subjected to a uniform triaxial stress
20.
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
