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Engineering

Consider a simple ideal Rankine cycle and an ideal regenerative Rankine cycle with one open feedwater heater. The two cycles are very much alike, except the feedwater in the regenerative cycle is heated by extracting some steam just before it enters the turbine. Hence, the simple ideal Rankine cycle is more efficient than the ideal regenerative Rankine cycle. How would you compare the efficiencies of of these two cycles?

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Engineering

Water flows at 5 Liters/s through a horizontal pipe that narrows smoothly from 10 cm diameter to 5 cm diameter. A pressure gauge in the narrow section reads 50 kPa. What is the reading of the pressure gauge in the wide section

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Tatiana Benjamin

Engineering

The statement that is NOT true about the concept of a boundary layer on an object is: a. the Reynolds number is greater than unity. b. viscous effects are present only inside the boundary layer. c. the fluid velocity is zero at the surface of the object. d. the fluid velocity equals the free stream velocity at the edge of the boundary layer. e. the velocity gradients normal to the flow direction are small.

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Engineering

What purpose does the case of a rifle or handgun cartridge serve? A, To hold all of its components together To hold all of its components together B, To create enough pressure to propel the bullet To create enough pressure to propel the bullet C, To serve as the projectile To serve as the projectile D, To control the spread of the shot To control the spread of the shot

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Engineering

What is the proper way to safely handle and store coolants?

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Engineering

Describe the key components of a servo motor? How is continuous motion servo different than standard servo?

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Engineering

Discuss the chemical and physical properties of crude oil

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Engineering

A good rule of thumb in hazardous conditions is to?

A. Speed up and get off the road quicker.

B. counter steer your way to your destination, so you maintain control.

C. have your hazard lights on, so vehicles on all sides can see you.

D. Slow down and increase your following distance to five seconds or more.

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Engineering

Classify the terms as related to a thermal system or mechanical system.

Conduction, Motion, Distance, Temperature, Absolute Zero, and Speed.

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Aliana Mckenzie

Engineering

If the open circuit voltage of a circuit containing ideal sources and resistors is measured at 6 V, while the current through the short circuit across the circuit is 200 mA, what would be the power absorbed by an ideal current source, I_s = 100 mA, placed across the terminals?

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Engineering

The shape and surface texture of aggregate particles are important for both portland cement concrete and asphalt concrete. For preparing PCC, would you prefer round and smooth aggregate or rough and angular aggregate? Briefly explain why (no more than two lines). For preparing HMA, would you prefer round and smooth aggregate or rough and angular aggregate? Briefly explain why (no more than two lines).

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Engineering

4. In its natural state, a soil weighs 2800 lb/cy, while in the loose and compacted states, it weighs 2500 lb/cy and 3300 lb/cy, respectively. a. Find the load and shrinkage factors for this soil. b. How many trucks loads with a capacity of 5 lcy/truck would be required to haul 750,000 ccy of this soil to a project

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Engineering

Describe the factors that contribute to a disk drive's average access time. Which of these factors is improved if the spin rate is increased? Which is improved if areal density is increased?

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Kristina Garrison

Engineering

What is the structure system?

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Wilson Frederick

Engineering

A ceramic material can be defined as an organic compound consisting of a metal or semimetal and one or more nonmetals: (a) true or (b) false?

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