When aging an aluminum alloy, the final hardness depends on time
at the heat treatment temperature. The time to achieve peak age
(maximum hardness):
a.
Increases with increasing aging temperature.
b.
Is not affected by aging temperature.
c.
a and b.
d.
None of the above.
Differentiate between “tertiary treatment” and “advanced
wastewater treatment”. How would you select a certain treatment
system and what are the influencing factors?
In the heat treatment of steel, when is tempering not required? (1
mark)
You are an engineer and you are required to design a
self-compacting concrete mix. List 2 important considerations in
your mix design. (1 mark)
FUTURE VALUE -
(a) How much money would you have in a year if you put $1,000 in
the bank at an annual interest rate of 3 percent? How much would
you have if you left all of that money in the bank for another year
and annual interest rates increased to 4 percent in the second
year? (PLEASE INCLUDE FORMULAS UTILIZED TO SOLVE PROBLEM)
(b) How much money would you have in a year if you put $2,500 in...
How much would you have to put down on a house with a selling
price of $90,000 and an appraised value of $95,000 when the lender
required an 80% loan-to-value ratio?