In: Civil Engineering

Q2. a) Explain the penetration test carried out on bitumen, state its significance and draw the test apparatus.

b). Mention the main factors considered in the choice of construction materials at the design office – is any of them more important than the other?

c). What factors affect the weldability of steel?

d). Consider the iron value chain from material extraction to disposal, at what point according to your assessment is the most energy used? As a design engineer, at what stage do you think is your intervention most important and what role can you play in making iron more sustainable?

1) Briefly explain the intelligence-gathering exercises carried
out by Zara in its stores and the role of technology in such
efforts.
2) In 2010, Reed Hastings was named Fortune Magazine’s
“Business Person of the Year.” Yet according to readings and class
discussions, what was the Netflix CEO’s “biggest strategic regret”
to that point? What was his reason for giving this answer?

Explain the TSI slant and explain the significance of the test.

State the expectations theory and explain its significance.
Using the generalized equation of the expectations theory of the
term structure of interest rates, calculate today's four-year rate,
assuming that the current one-year, 6% rate is expected to rise by
one percentage point in each of the next three years.

Explain how each process of Central Dogma is carried out?

Q9. For each of the following chemical and physical changes
carried out at constant pressure, state whether work is done by the
system on the surroundings or by the surroundings on the system, or
whether the amount of work is negligible. State whether process or
reaction is endothermic or exothermic.
A.benzene (l) → benzene (g)
B. ½ N2(g) + 3/2 H2(g) → NH3(g)
ΔH = -92 kJ/mol
C. 2NH4NO3(s) → 2N2(g) +
4H2O(g) + O2(g) + heat
D. H2(g) +...

Q9. For each of the following chemical and physical changes
carried out at constant pressure, state whether work is done by the
system on the surroundings or by the surroundings on the system, or
whether the amount of work is negligible. State whether process or
reaction is endothermic or exothermic.
A.benzene (l) → benzene (g)
B. ½ N2(g) + 3/2 H2(g) → NH3(g)
ΔH = -92 kJ/mol
C. 2NH4NO3(s) → 2N2(g) +
4H2O(g) + O2(g) + heat
D. H2(g) +...

If a hypothesis test turns out to be statistically significant
at the significance level of 0.01 (meaning reject the null
hypothesis at 0.01 significance level), it will also be significant
at: Circle your
answer(s)
Significant level of 0.05
Significant level of 0.001
Significant level of 0.005
Significant level of 0.1
Which p-value would provide more evidence against the null
hypothesis:
p-value
of 0.02 and p-value of 0.04. Explain your answer.
ATM machines must be stocked enough cash to satisfy customers...

Describe the cross match test using immunology
terms, then state why and how it was carried
out.

1. Explain the process of creating a significance test.
2. How do confidence intervals and significance tests
relate?
3. When do you use a matched-pairs t-test?

When we carry out a statistical test with significance level α =
5%, the probability of rejecting the null hypothesis when it is
true is 5%. Suppose that we independently select 5 random samples
of size 100, and for each sample carry out the same statistical
test with significance level 5%. We know that the null hypothesis
is true. What is the probability that we reject the null hypothesis
at most once out of the 5 tests?

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