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Engineering

The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are95 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 7.2 MPa and thetemperature is 2150 K. Allowing for variable specific heats, Determine: (a) the compression ratio, r. (b) the cutoff ratio, rc. (c) the thermal efficiency of the cycle,? th (%). (d) the mean effective pressure, mep (kPa).

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Ernesto Fleming

Engineering

Explain two Types of bearing?

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Engineering

7 Single-use earplugs require a professional fitting before they can be used.

A

True

B)

False

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Engineering

Electric power is to be generated by installing a hydraulic turbine-generator at a site 138 m below the free surface of a large water reservoir that can supply water at a rate of 2400 kg/s steadily. Determine the power generation potential. Assume that the elevation of the reservoir remains constant and the mechanical energy of water at the turbine exit is negligible. (Round the final answer to two decimal places.)

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Braden Davenport

Engineering

When the French horn plays with brass instruments, then it is played very softly to match the texture.

True/False

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Engineering

You're running an engine and seeing that it is exhausting blue smoke. Which is likely to

be the problem?

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Porter Harrison

Engineering

To do a research, a researcher needs to be clear about what he/she is doing, why he/she is doing it and the associated implications of what he/she is about to do. A. True B. False

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Engineering

Match the car part to the system

Catalytic Converter

Radiator

Alternator

Shock absorbers

Engine

And

Suspension system

Cooling system

Electrical system

Power train

Exhaust system

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Engineering

What is the effect of increasing rake angle on the type of chips produced, and why?

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Engineering

What are the four causes of electrical faults?

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Estrella Mcneil

Engineering

Old cars used to have a purely mechanical device called a carburetor to draw fuel into the engine for combustion. (Modern cars accomplish this with electronic fuel injection systems.) To prepare for this discussion, do some online research about how carburetors function.

1. How does the Bernoulli Effect allow the carburetor to function?

2. What advantages and disadvantages do you see with only using a carburetor?

3. Why do you think modern cars use electronic fuel injection systems instead of carburetors?

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Engineering

A 14 inch diameter pipe is decreased in diameter by 2 inches through a contraction. The pressure entering the contraction is 28 psi and a pressure drop of 2 psi occurs through the contraction if the upstream velocity is 4.0 ft/sec. What is the magnitude of the resultant force (lbs) needed to hold the pipe in place?

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Engineering

Answer if your name is russ

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Engineering

How should the system administrator resolve the issue?

A marketing user needs to create a new campaign, but the new button is NOT visible from the campaign home page. The system administrator has verified that the user has the "Create" profile permission for the campaign object.

A. Add the new button to the page layout using the page layout editor

B. Select the Marketing User checkbox in the user record

C. Grant the user "Read" profile permission for the campaign object

D. Select the "Manage Campaigns" profile permission

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Engineering

In response to the market revolution:the legal system worked with local governments to find better ways to regulate entrepreneurs. Chief Justice John Marshall ruled that legislatures could not alter or rescind charters and contracts that previous legislatures had created. local judges protected businessmen from paying property damages associated with factory construction and from workers seeking to unionize. Massachusetts Chief Justice Lemuel Shaw held in Commonwealth v. Hunt that workers had no right to organize. corporations proved less able to raise capital than chartered companies did.

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