Civil and Environmental Engineering Answers

True or False: The precise way to get the right drill bit size in pre drilling is to match the shank size with the drill bit size

Task 1

Table T1 lists experimental data for a tensile test performed on a novel high strength composite material for structural trusses.

Displacement (mm) 0 1 2 3 4 5 6 7 8 9 10

Tensile Stress (GPa) 0 10 14 16 18 19 20 21 22 23 23

Table T1. Tensile test to failure on composite material

a) Plot the data and identify the function type that best describes the data.

[Marks: 4/100]

b) Use linear regression to estimate the parameters of the function above. Check the effectiveness of your curve fitting parameters by plotting the experimental data (i.e. Table T1) and the data of your model fit. Also calculate the sum of the squares of the residuals (J) and the coefficient of determination (r2) to discuss about the quality of your model fit.

Use differentials to approximate the volume of material needed to make a rubber ball if the radius of the hollow inner core is 2 in., and the thickness of the rubber is 1/8 in.

What's the next procedure in building a shaker cabinet door after you cut the left and right stiles of the cabinet door?

If a fastener has the ability to withstand lateral movement this is called its strength. .

True or False: An Oil-based paint has the advantage of being odorless

True or False: The nozzle of a gravity-fed spray gun is located above the paint cup.

True or False: Good sanding is used to help show the holes and imperfections of the wood surface

True or False: A respirator with a charcoal filter is sufficient to protect your lungs from paint fumes when painting in a closed room.

True or False: Water is used to thin enamel paint.

True or False: The primer for an automotive lacquer is the lacquer sanding sealer.