a) List four steps employed in Deterministic Seismic Hazard Analysis (DSHA) method

b) How is Probabilistic Seismic Hazard Analysis (PSHA) different from Deterministic Seismic Hazard Analysis (DSHA)

a) Give reasons why moment magnitude Mw is the most common used method to define the size of an earthquake.

Data on a major earthquake are as follows:

· Depth of fault rupture is 25 km

· Length of the surface faulting is 800 km

· Average slip along the fault is 5 m

· Shear modulus of material along the fault plane is 2x1010 N/m2

b) Calculate the seismic moment, Mo

c) Compute the moment magnitude of the earthquake (note, Mo in dyne-cm; one Newton-m = 107 dyne-cm)

2) A circular sewer is to carry a flow rate of 0.07m3
/s when flowing full. The sewer is
to be laid on a slope of 0.006. With n = 0.013, calculate the pipe size and velocity
of flow. Compare the nomogram and theoretical values.

Risk management is a key part of project management. List five key features of a road infrastructure risk management plan. Name three significant risks usually involved in a road project and briefly describe them. (Target length to answer this question is approximately 300 words)

List four major components of asphalt and describe their contributions to the overall performance of a road pavement.

what is the junction low (i need traffic flow not current),

plees i also need a reference

. thank you

Distinguish between hot mix asphalt patching and crack seal used for the maintenance treatment for flexible pavements.

a) The soil from a borrow pit is at a total density of 1.8 t/m3 and a water content of 12%. It is desired to construct a road subgrade with a compacted total density of 2 t/m3 at a water content of 17%. Determine the quantity of soil (dry mass in tonnes) to be excavated from the barrow pit and the amount of water (in litres) to be added for every 1 m3 of compacted soil in the embankment. (Assume the specific gravity of soil is 2.65).

b) Explain the relative benefits of using stone mastic asphalt and open graded asphalt in pavement.

1. In a uniform open channel flow:
   1. The total energy remains constant along the channel
   2. The total energy line either rises or falls along the channel depending on the state of the flow
   3. The specific energy decreases along the channel
   4. The line representing the total energy is parallel to the bed of the channel

2. In which of the following situations, the flow is uniform?
   1. Flow in channel contraction or expansion
   2. Flow in the vicinity of a bridge pier
   3. Flow at the middle of a long prismatic channel far away from the obstruction

3. Uniform flow in an open channel exists when the flow is steady, and the channel is
   1. Prismatic
   2. Non-prismatic and the depth of the flow is constant along the channel
   3. Prismatic and the depth of the flow is constant along the channel
   4. Frictionless

4. In uniform flow, there is a balance between:
   1. Gravity and frictional forces
   2. Gravity and inertial forces
   3. Inertial and frictional forces
   4. Inertial and viscous forces

5. The water depth in a wide channel is equal to 1.2m (For a very wide channel R is approximately equal to y). If the Chezy coefficient is equal to 49 (metric), then Manning coefficient n (metric) is equal to:
   1. 0.024
   2. 0.021
   3. 0.026

when designing a rigid channel carrying low sediment water, what 2 requirements do you need to meet and what are you trying to avoid in these requirement

Under what circumstances might an owner decide to use wrap-up (owner controlled insurance program) insurance. What type of projects are suited for wrap-up insurance?