1. Based on your understanding of timber, elaborate with examples the following topic:

i) strength and durability of timber

ii) sustainability concept of timber

iii) advantages and disadvantages of timber compared to concrete

(b)       Sketch a single storey house and indicate with reasoning the possible and suitable application of timber as structural and non-structural components of the house.

1. The annual precipitation measurements (Pi in cm) for M city, over a 20year period are shown in the following table. Determine the mean, standard deviation, and skew coefficient for this series.

2. Annual precipitation measurements (Pi in cm) for M City, were given in Problem 1. Determine the magnitude of the 10-year precipitation depth if the data fit:

1. the normal distribution.
2. the Gumbel distribution.

How many times was the P10 (normal) exceeded in the 20-year annual precipitation record given in Problem 1 ?

Please clarify each step of the solution

1. The annual precipitation measurements (Pi in cm) for M city, over a 20year period are shown in the following table. Determine the mean, standard deviation, and skew coefficient for this series.

2. Determine the mean, standard deviation, and skew coefficient for the log values of annual rainfall for M City, given in Problem 1. Also determine the mean precipitation (in cm) of the log-transformed data.

please clarify each step of he solution and do not use Microsoft Excel

Assignment title: Construction Project Planning

Develop the List of Activities, encode, and describe them, of a Warehouse project

A 1" pipe buried 2' deep runs 40' from house to outhouse. Frost depth = 3', so a trickle must flow.

a) Say it's laminar flow, at 75% of the velocity needed to make Re=2100. Find that velocity, gal/day carried. Use p=1.94slug/ft^3, m= 2.2*10^-5 lb-sec/ft^2 in this and the following Re problems.

b) Find the head loss hl=hp and the pressure drop (psi) over the l=40'

1. Horizontal siding may be attached

2. Structural steel members are

3. Light-gauge steel studs are attached to top and bottom tracks using

4. A length of LVL lumber is more likely to warp or deform than sawn lumber of an equivalent size and length.

True

False

5. Light-gauge steel studs are attached to top and bottom tracks using

rivets.

staples.

nails.

bolts in predrilled holes.

self-tapping screws.

6. A length of LVL lumber is more likely to warp or deform than sawn lumber of an equivalent size and length.

True

False

7. Distinguishing characteristic(s) of platform framing construction include (choose most complete overall answer)

8. In which of the following situations would a light-gauge steel connector be used?

1. What is MPS? What is the role of MPS in the job design?

1. Write at least two sentences in your own words to explain the difference between the confined aquifer and unconfined aquifer.

2. Answer True or False and justify your answer:

    a. The porosity of a clayey soil is about 40% while the porosity of a medium sand soil is also 40%. Therefore, both of these soil types will have the same specific yield.

    b. Confined aquifers have a larger specific yield than the one from the unconfined aquifer.

Two limestones (LS1 and LS2) have LoI (loss on ignition) values as 40% and 33%, respectively. a) Calculate the total amount (%) of impurities in these limestones; b) State which of the quicklimes obtained from these limestones slakes faster.

Poplar wood contains 50% cellulose. Pure cellulose extracted from wood can enzymatically be converted to glucose C₆H₁₂O₆ with 90% efficiency.

1. Write down a balanced chemical reaction for the conversion of glucose to ethanol (CH₃CH₂ OH).
2. Use this equation to calculate the theoretical yield of ethanol from one-ton of poplar wood.
3. Calculate the actual yield of ethanol from one-ton of poplar wood if the fermentation efficiency (glucose to ethanol) is 95%.
4. Determine the gasoline equivalent of ethanol in part C above.

There are four critical paths in a network. A-B-C-D-E, A-F-E, A-B-H-J-K-E and A-S-T-E. Each activity in this network can be crashed by a maximum of 2 weeks. The crashing cost (per week), for the first week, for activity A is: $540, E is $545 and all other activities is : $135 (per week per activity). The crashing cost, second week and onwards, for activity A is $1080 per week, E is $1350 per week and for all other activities is $405 per activity per week. You have a maximum crashing budget of $2300. The maximum possible reduction in the project duration will be:

Select one:

a. 3 weeks

b. 4 weeks

c. 5 weeks

d. 1 week

e. 2 weeks