Which step in the reverse-engineering process involves the identification of subsystems and their relationship to one another?

Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K, with a mass flow rate of 6 kg/s. The co

ICE Princess25 [194]

Answer:

The thermal efficiency of cycle is 42.6%.

Explanation:

Given that

$T_1=300 K$

$P_1=100KPa$

mass flow rate = 6 kg/s

Compression ratio = 7

Turbine inlet temperature = 1200 K

γ=1.4

We know that thermal efficiency of Brayton cycle given as

$\eta=1-\dfrac{1}{r_p^{\frac{\gamma-1}{\gamma}}}$

Now by putting the values

$\eta=1-\dfrac{1}{r_p^{\frac{\gamma-1}{\gamma}}}$

$\eta=1-\dfrac{1}{7^{\frac{1.4-1}{1.4}}}$

η=0.426

So the thermal efficiency of cycle is 42.6%.

7 0

3 years ago

In the 1960s through 1980s, a medical filter manufacturer in Ann Arbor discharged 1,4-dioxane (an industrial solvent) directly i

stepladder [879]

Answer:

<u>Option-</u> C

In the 1960s through 1980s, a medical filter manufacturer in Ann Arbor discharged 1,4-dioxane (an industrial solvent) directly into the environment, where it ultimately leached into underlying groundwater aquifers. A plume of 1,4-dioxane has been spreading under Ann Arbor and could pose water quality risks if it reaches Barton Pond, which supplies 85% of the city's drinking water. So, we can evaluate the given information by concluding that the EPA classifies 1,4-dioxane as a probable carcinogen with a potency factor of 0.011 (mg/kg/d)1. If the water contains the EPA's allowable limit of 7.2 μg/L of 1,4-dioxane, calculate the carcinogenic risk based on the default EPA exposure factors over a lifetime for ingestion of potable water in an average adult. Is the water safe to drink based on the "rule of thumb" discussed in class?

5 0

3 years ago

सत्य से अधिक उपयोगी एवं आज्ञापालन से श्रेष्ठ क्या है ?<br>answer fast plz

PilotLPTM [1.2K]

Answer:

I hope this helps you

Explanation:

किसी की जान बचाने के लिए झूठ बोलना सत्य से अधिक उपयोगी है । अन्यायपूर्ण आज्ञा का विरोध आज्ञापालन से श्रेष्ठ है ।

5 0

2 years ago

Oleg is using a multimeter to test the circuit branch you just installed. After turning off the current to the circuit at the se

irakobra [83]

Answer:

Option D, Ground Wire

Explanation:

Oleg is a mustimeter or multi tester or a basic voltage tester which is used to test the ground. The main purpose of the tester is to ensure that the outlet is connected to the ground of the circuit, thereby ensuring its proper functioning.

Hence, option D is correct

7 0

3 years ago

(TCO 1) Name one disadvantage of fixed-configuration switches over modular switches. a. Ease of management b. Port security b. F

frutty [35]

Answer:

The answer is A.

Explanation:

Two main types of network switches, modular and fixed configuration switches, are used for connecting the devices with one another provided they are on the same network.

As the name suggests, modular switches can be configured according to your needs and specific situations where you need a different setup.

The one advantage fixed-configuration switches have over the modular switches is that they are easier to operate. You can't change anything for a different application but they are simpler to setup and use, you can just plug them in and start using. They are usually for the more casual end-user and home networks etc.

I hope this answer helps.

5 0

3 years ago