1. A new overpass is being designed and will be crossing an existing roadway 200 feet prior to it’s PVI (station 120+00).   The existing roadway has grades of -4% and +5% and a sag vertical curve length of 1000 feet.   The PVC elevation is at 600 feet.   There are a significant number of trucks that use the existing roadway.   Determine the minimum elevation that then new overpass can be at as measured from the bottom of the overpass based on sight distance for trucks.   (FYI, also think about the height of trucks as well.)

Solid sections are more effective than hollow sections against buckling. Select one:

a.True

b.False

1.) Vehicles arrive at an entrance to a recreational park. There is a single gate (at which
all vehicles must stop), where a park attendant distributes a free brochure. The park
opens at 08:00 am, at which time vehicles begin to arrive at a rate of 480 veh/hr. after
20 minutes the arrival flow rate declines at 120 veh/hr, and it continues at that level
for the remainder of the day. If the time required to distribute the brochure is 15
seconds and assuming D/D/1 queue,
a. Determine the maximum length of queue that occurred.
b. How long did it take to dissipate the queue?
c. What is the average delay per vehicle?
Show all necessary solutions and diagram

2.) Consider the entrance to the recreational park described in the previous question.
However, assuming that the average arrival rate is 180 veh/hr and Poisson-distributed
(negative exponential times between arrivals) over the entire period from park opening
time, 08:00 am until closing at dusk. Compute
a. The average length of queue
b. Average waiting time in the queue
c. Average time spent in the system

PLEASE ANSWER ALL QUESTION

What considerations should affect an interior designer’s specification of a radiantly heated floor, ceiling, or wall?

8) WHAT IS ALKALI-SILICA REACTIVITY (ASR)? 9) HOW CAN "ASR" BE AVOIDED?

type please

How do HVAC system components affect the work of an interior designer?

Given the following u-k relationship, u = 30 ln (300/k) mi/h. Find the jam concentration, the capacity of the roadway, and the speed of the shock wave between conditions u_a = 60 mi/h and u_b = 40 mi/h.

Please write out the equations used before plugging in the numbers. Thanks!

What are the interior design implications regarding the heating and cooling engineering system?

Define Give detention time and give reasons why wastewater needs to stay in the

clarifier longer. What is the implications having the tank (clarifier) smaller for the

amount of flow?

4 marks

b. In the oxidation of ammonia by nitrifying bacteria, considerable quantities of oxygen

can be utilised, which can represent a significant fraction of the total oxygen demand of

a wastewater. Name these bacteria (2) and give equations to illustrate the process

8 Mark

A hydraulic jump is formed in a rectangular channel 6.5 ft wide. The conjugate depths are 0.5 ft and 4.0 ft respectively. Calculate: a. specific discharge, b. energy lost in the jump, c. critical depth, minimum specific energy, d. Horsepower lost, e. Length of the jump and f. Classify the Jump.

How does the aggregate strength affect normal concrete strength?

A beam extends over a span of 7.3 m and an overhang (cantilever) to the right of the right support of 3 m (that is, the total length of the beam is 10.3 m.) The beam supports a service dead load of 18 t/m that does not include self-weight, and a service live load of 10 t/m. Assume the connection between the beam and the support is a simple pin or roller.

. If self-weight is 1.512 , the height(h) =90cm , width b=70 cm , dt= 83.5

Use fc' : 28 MPa, fy : 420 MPa

design the beam for shear including self weight

How many studs are needed to construct 100 feet of a 2 x 4 stud wall? The wall has one 8-footwide window, four 4-foot-wide windows, two 36-inch-wide doors, one 30-inch-wide door, four corners, two intersections, and eight hold downs located at corners. The stud spacing is 16 inches on center. Allow for two additional studs for each corner, intersection, or doorway; six additional studs for each window less than 6 feet in length; eight additional studs for each window 6 feet or more in width; and one additional stud for each hold down located at a corner

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1. For the quarter scale tractor team: Student A is 94% reliable at CAD, 90% reliable at Excel, and 82% at Word; Student B is 88% reliable at CAD, 88% reliable at Excel, and 88% at Word; and Student C is 84% reliable at CAD, 86% Excel, and 96% at Word. Which of the following is more reliable: Student A draws the tractor with CAD while the other two do calculations with Excel weld and write the final report with Word, or Student B does calculations with Excel for the tractor while the other two draw the tractor with CAD and write the final report with Word, or if student C writes the final report with Word while the other two draw the tractor with CAD and do calculations with Excel? Specify the reliabilities for each scenario. What is the reliability, if they all participate in each step?