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polet [3.4K]
3 years ago
9

PLEASE HELP!!! I've included attachments. Can someone just check my answers pls??

Engineering
1 answer:
wel3 years ago
5 0

Answer:they all look good to me good job :)

Explanation:

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Steam enters a turbine at 8000 kPa, 440oC. At the exit, the pressure and quality are 150 kPa and 0.19, respectively.
levacccp [35]

Answer:

\dot W_{out} = 3863.98\,kW

Explanation:

The turbine at steady-state is modelled after the First Law of Thermodynamics:

-\dot Q_{out} -\dot W_{out} + \dot m \cdot (h_{in}-h_{out}) = 0

The specific enthalpies at inlet and outlet are, respectively:

Inlet (Superheated Steam)

h_{in} = 3353.1\,\frac{kJ}{kg}

Outlet (Liquid-Vapor Mixture)

h_{out} = 890.1\,\frac{kJ}{kg}

The power produced by the turbine is:

\dot W_{out}=-\dot Q_{out} + \dot m \cdot (h_{in}-h_{out})

\dot W_{out} = -2.93\,kW + (1.57\,\frac{kg}{s} )\cdot (3353.1\,\frac{kJ}{kg} - 890.1\,\frac{kJ}{kg} )

\dot W_{out} = 3863.98\,kW

8 0
3 years ago
The Acme tool is aligned to the work with: A. A square B. The eye C. An Acme tool gage D. A center gage
kotegsom [21]

Answer:

(c) an acme tool gage

Explanation:

with the help of an acme tool we measure the pitch of a screw thread it is used as reference for finding the pitch of the thread it is also called an inspection tool is aligned to work with an acme tool gage it is also used for gage the internal and external threaded product. it is also used for grinding and setting tools it is mainly work 29° thread angle

8 0
4 years ago
A flat plate is oriented parallel to a 15 m/s airflow at 20 o C and atmospheric pressure. The plate is 1 m long in the flow dire
____ [38]

Answer:

0.506N

Explanation:

In this question, we are asked to calculate the total drag force on a plate which is oriented parallel to an air flow at a particular temperature and atmospheric pressure.

Please check attachment for complete solution, plate diagram and step-by-step explanation

3 0
3 years ago
Read 2 more answers
Why are diode logic gates not suitable for cascading operation?
sasho [114]

Diode logic gates are not suitable for cascading operation because the pull-down or pull-up resistance within makes them a high output resistance device.

<h3>What is a cascading operation?</h3>

A cascading operation can be defined as a process which involves the use of a circuit breaker's current-limiting capacity in order to enable an installation of lower-rated and lower-cost circuit breakers.

According to the National Electrical Code (NEC), diode logic gates are not suitable for cascading operation because the pull-down or pull-up resistance within makes them a high output resistance device.

Read more on National Electrical Code here: brainly.com/question/10619436

#SPJ1

5 0
2 years ago
The utility companies often sell electric power at night at much lower prices since the demand for electric power is usually muc
Mice21 [21]

Answer:

the electric is cheaper

Explanation:

5 0
3 years ago
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