What are the new types of novelty materials are needed for innovating the materials for waste to energy and water distribution efficiency to reduce climate change? Write a 600 words on these materials and new materials implemetation and issues.

Q1

a) Many environmental legislation and enforcement are adopted in Malaysia. These legislations need to be updated, Suggest FIVE (5) elements and regulation which should be included in a new version of environmental legislation.

b) Evaluate FOUR (4) challenges among the Malaysian companies to receive ISO14000.

Compute the normal depth (y) in a trapezoidal channel having a bottom-width 10 m, side slopes 1H to 1V and carrying a flow of 30 m³/s. The slope of the channel bottom is S_o = 0.001 and n = 0.013.

A.

B.

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D.  

A rectangular channel carries a flow at a velocity of 2.1 m/sec and at a depth of 2.1m. The tail end gate of the channel is suddenly closed. Find the height and speed of the surge. What would be the values of these quantities if the gate is partially closed to release half of the flow?

Malaysia has many alternative resources for energy and the country has started with several projects in the alternative energy sector. However, with the COVID19 Pandemic the price of traditional fuel has gone down. Do You still advise to continue with alternative energy projects and explain your in detail answer?

Waste minimization programs definitely will receive high attention in future. Suggest TWO (2) scenarios to manage the wastes.

Many environmental legislation and enforcement are adopted in Malaysia. These legislations need to be updated, Suggest FIVE (5) elements and regulation which should be included in a new version of environmental legislation

How did a war fought to bring “essential human freedoms” to the world fail to protect the home-front liberties of blacks, Indians, Japanese-Americans, and Mexican-Americans? Answer in 2 paragraphs with 5 sentences min.

How did the United States and Soviet Union shift the focus of the Cold War to the Third World? Answer in 2 paragraphs with 5 sentences min

Construction Safety

1. CEO of a residential roofing business: “This fall protection standard is ridiculous. I can’t afford to buy lifelines for all of my employees. Besides, they work faster without lifelines.” OSHA inspector: “The lifelines won’t cost you nearly as much as an injured employee who falls off a roof and breaks his neck.” What is your opinion of OSHA’s fall protection standard? Should residential contractors be exempted?

2. You are a recent college graduate, and this is your first real job. You are the assistant director of safety for Rayster Construction, Inc. (RCI). Your job today is to conduct preoperation inspections of the company’s two cranes that are being used to construct a bridge across a small bay. As you begin your first inspection, the crane operator—who has worked for RCI for 25 years—brushes past you and starts the crane’s engine. He says, “Get out of the way, kid. This crane is just fine. It doesn’t need inspecting. You are holding up my work.” This crane operator has an excellent safety record, as does RCI in general. How should you handle this situation?

A rectangular channel which is laid on a bottom slope of 0.0064 is to carry 20 m3/sec of water . Determine the width of channel when the flow is in critical condition. Take n =0.015

How we can rate the different types of soils for different layers of the pavements on the basis of their CBR values?

How we can determine the ESAL for the design period? Elaborate your answer with a numerical example.

Design size and spacing of dowel bars at an expansion jiont of concerete pavement of thickness 25cm.Given the radius of raltive stifness of 80cm. design wheel load 70kn. load capacity of the dowel system is 50 percent of design wheel load. jiont width is 2.0 cm and the permissible stress in shear, bensing and bearing stress in dowel bars are 1000,1400 and 100kg/cm*2 respectively.