+1-415-315-9853

info@mywordsolution.com

## Engineering

 Civil Engineering Chemical Engineering Electrical & Electronics Mechanical Engineering Computer Engineering Engineering Mathematics MATLAB Other Engineering Digital Electronics Biochemical & Biotechnology

Section A: True (T) or False (F)?

1) In deep water, the wave speed is dependent on the wave period and the water depth.

2) At a point underneath a wave trough, the velocity vector points in the direction of wave propagation.

3) A wave spectrum is a plot of wave energy versus time.

4) The barometric setdown associated with a stationary high pressure system is of the order 10cm/hPa.

5) Refraction is the process by which wave energy spreads out along a wave crest from a region of high energy to a region of low energy usually associated with obstructions in the ocean.

6) Assuming a spherical shaped sediment particle will tend to overestimate the settling velocity for natural sand particles.

7) Tsunami waves in the ocean behave as deep water waves.

8) Considering linear wave forcing, the maximum inertial force acting on a pile will coincide with the passing of the wave crest.

9) Given the same free stream velocities, the bed shear stress resulting from wave driven currents is greater than the bed shear stress under a steady, uni-directional current.

10) Wave runup is more dependent on the wave period than the wave height.

Section B: Multiple choice

1) A small-amplitude wave with a period of 11s propagating in a water depth of 2m is a:

(a)  transitional wave
(b)  shallow water wave
(c)  deep water wave
(d)  short wave

2) Consider a 10m wind speed of 20.65m/s blowing across a deep water ocean. Assuming that wind duration is not a limiting factor,  the minimum fetch length required to reach a fully developed sea state is approximately:

(a)  900km
(b)  1000km
(c)  1100km
(d)  1200km

3) Irregular waves with a period of 12 seconds and Ho,rms = 2.1m runup on a beach with a slope of 1 in 100. How many waves will exceed the R2% elevation in a 2hr period?

(a)  8
(b)  12
(c)  16
(d)  20

4) Consider the head of a rubble mound breakwater made of rough angular  quarry stone (ρs = 2650kg/m3) with a slope of 1:2. What is the largest broken wave height that a 1m armour unit could withstand?

(a)  2.3m
(b)  2.5m
(c)  2.8m
(d)  3.2m

5) A bottom mounted pressure sensor is deployed in a water depth of 5m where waves typically have a height of 1m and a period of 9.8s. Relative to the pressure fluctuations at the still water level, how much will the pressure fluctuations at the sensor will be reduced by?

(a)  5%
(b)  10%
(c)  15%
(d)  20%

Section C:

1) Aerial photographs of a 10km section of straight coastline oriented in the north-south direction with the ocean to the east  reveal a shoreline accretion rate of 1.2m/year. Assuming that wave breaking occurs in shallow water with a breaker index of 0.8 and that the bottom contours are straight and parallel to the coastline, estimate the average annual shore-normal transport rate.

First table below summarizes the results of an analysis of deep water wave data quantifying the typical conditions for the area. And second table summarises the sediment and profile data.

H = wave height, T = wave period, θ = wave crest angle to coastline.

2) describe wave set-up and set-down in the nearshore in terms of wave transformation processes and the resultant spatial gradients in the radiation stress.

3) Consider the breakwater configuration shown in the figure below. The incident wave conditions at the breakwater are a wave height of 1.5m, wave period of 7.0s and a wave crest angle to the breakwater of 15o. The water depth in behind the breakwater is constant at h = 4.9m. Provide quantitative evidence to establish whether 0.2mm quartz sediments (ρs = 2650kg/m3, s ≈ 2.65) at location B will move or not.

Civil Engineering, Engineering

• Category:- Civil Engineering
• Reference No.:- M91391

Have any Question?

## Related Questions in Civil Engineering

### Recall the discussion of the completeness of the nand and

Recall the discussion of the completeness of the NAND and NOR functions. A. Referring to figure 3.2, identify which other two-argument Boolean functions are complete in the same sense. B. Give a definition of NAND in ter ...

### An open-circuit wind tunnel draws in sea-level standard air

An open-circuit wind tunnel draws in sea-level standard air and accelerates it through a contraction into a 1 m-by-1 m test section. A differential pressure transducer mounted in the test section wall measures a pressure ...

### The table can be lifted without tilting by applying the

The table can be lifted without tilting by applying the 100-N force at O A y 40 lb 2 ft 90 lb ⋅ft 5 ft 3 ft z x Fig. P2.90 point O, the center of the table. Determine the force-couple system with the force acting at corn ...

### Accelerated strength testing of portland - pozzolan cement

Accelerated Strength Testing of Portland - Pozzolan Cement Concretes by the Warm Water Method Background Portland - Pozzolan cement has an important place among the group of blended cements and it is well known that the ...

### The massachusetts bay transportation authority mbta has

The Massachusetts Bay Transportation Authority (MBTA) has just awarded you a contract to revamp the signaling system on its Green Line. You have decided upon the following basic approach: Each section of track will have ...

### Consider the three prototype patterns shown in figure e72i

Consider the three prototype patterns shown in Figure E7.2. i. Are these patterns orthogonal? Demonstrate. ii. Use the Hebb rule to determine the weight matrix for a linear autoassociator to recognize these patterns. iii ...

### Write data analysis methods of aac autoclaved aerated

Write Data analysis methods of AAC (Autoclaved aerated concrete) in Oman. Attachment:- sample.rar

### A worker applies the forces p -10i 8j lb and q 10i lb to

A worker applies the forces P = -10i + 8j lb and Q = 10i lb to the handgrips of the electric drill. These forces are equivalent to the force R = 8j lb acting at the tip of the drill and the couple C R = -120j lb · in. De ...

### 1 what are the most positive and most negative integers

1. What are the most positive and most negative integers that can be expressed using a k-bit 2's complement representation? 2. Devise a scheme for representing integers, independently of size, as binary strings. Briefly ...

### How are the strength grades denoted for a glulam that isa

How are the strength grades denoted for a glulam that is a. Primarily a bending member fabricated with visually graded laminations? b. Primarily a bending member fabricated with E-rated laminations? c. Primarily an axial ...

• 13,132 Experts

## Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

### Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

### Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

### Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

### Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

### Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen