Recent questions in Engineering

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What is the solution to the system of equations? 2x-y=7 y=2x+3

Hainq asked Sep 3, 2020

by Hainq

5.4k points

2 answers

2 votes

140k views

The time to failure for a gasket follows the Weibull distribution with ß = 2.0 and a characteristic life of 300 days. What is the reliability at 200 days? Also, at how many days does the reliability fall

Chanaka Karunarathne asked Sep 3, 2020

by Chanaka Karunarathne

5.8k points

1 answer

0 votes

209k views

Air in a piston-cylinder device is compressed from 25 C and 100 kPa to 500 kPa during a polytropic process for which PV.3- constant. The air temperature after compression (in C) is : (a) 182 (b) 156 (c)

RadekJ asked Sep 3, 2020

by RadekJ

5.6k points

1 answer

3 votes

198k views

Air-conditioners consume a significant amount of electrical energy in buildings. Split air conditioner is a unitary system where the heat is extracted from a building and dumped outside. i. What are the

Jason Steele asked Sep 3, 2020

by Jason Steele

5.9k points

1 answer

1 vote

188k views

What is base oil permeability? Mention two examples of oil permeability.

David Schwartz asked Sep 3, 2020

by David Schwartz

5.8k points

1 answer

0 votes

216k views

What is the IMA for the pulley system shown?

Linesarefuzzy asked Sep 3, 2020

by Linesarefuzzy

5.8k points

1 answer

4 votes

207k views

Water at 120oC boils inside a channel with a flat surface measuring 45 cm x 45 cm. Air at 62 m/s and 20oC flows over the channel parallel to the surface. Determine the heat transfer rate to the air. Neglect

Gorakh Nath asked Sep 3, 2020

by Gorakh Nath

6.2k points

1 answer

2 votes

154k views

A steam turbine has an inlet of 3 kg/s water at 1200 kPa, 350 °C and velocity 15 m/s. The exit is at 100 kPa, 150 °C and very low velocity. Find the specific work and power produced?

Styfle asked Sep 2, 2020

by Styfle

5.8k points

1 answer

5 votes

192k views

Identify factors that can cause a process to become out of control. Give several examples of such factors.

Teddy Sterne asked Sep 2, 2020

by Teddy Sterne

6.1k points

1 answer

4 votes

188k views

You will write a function that determines if a password is "strong" or "weak". Your function willhave one parameter, the password given as a string, and return the string "strong" or "weak"depending on

Mluker asked Sep 2, 2020

by Mluker

6.4k points

1 answer

2 votes

59.8k views

Most hazardous waste can be disposed of in a landfill.

Malik Amurlayev asked Sep 2, 2020

by Malik Amurlayev

6.3k points

2 answers

2 votes

221k views

Shear modulus is analogous to what material property that is determined in tensile testing? (a)- Percent reduction of area (b) Yield strength (c)- Elastic modulus (d)- Poisson's ratio

Pxpgraphics asked Sep 2, 2020

by Pxpgraphics

6.2k points

1 answer

3 votes

56.5k views

Which one of the following statements is true? Explain whether each is true or false. a] Pearlite and bainite are examples of phases that can be formed by austenite if the cooling rate is controlled appropriately.

Jeremy Hicks asked Sep 2, 2020

by Jeremy Hicks

5.7k points

1 answer

5 votes

141k views

If an elevator is to raise a 5000 lb a height of 30 ft in 320 seconds, what horsepower motor would be required?

Majid Roustaei asked Sep 2, 2020

by Majid Roustaei

5.8k points

1 answer

4 votes

50.1k views

A binary liquid system exhibits LLE at 25°C. Determine from each of the following sets of miscibility data estimates for parameters A12 and A21 in the Margules equation at 25°C: (a) x1 α = 0.10, x1 β =

Rastislav Komara asked Sep 2, 2020

by Rastislav Komara

6.2k points

1 answer

0 votes

17.7k views

A composite wall is made of two layers of 0.3 m and 0.15 m thickness with surfaces held at 600°C and 20°C respectively. If the conductivities are 20 and 50 W/mK, determine the heat conducted. In order

Treysp asked Sep 2, 2020

by Treysp

6.3k points

1 answer

1 vote

61.0k views

What i s the value of a capacitor with 250 V applied and has 500 pC of charge? (a) 200 uF (b) 0.5 pF (c) 500 uF (d) 2 pF

Zaky German asked Sep 2, 2020

by Zaky German

5.6k points

1 answer

1 vote

113k views

The amplitudes of the displacement and acceleration of an unbalanced motor were measured to be 0.15 mm and 0.6*g, respectively. Determine the speed of the motor . Use g=9.81 m/s^2 .

Ahmed Imam asked Sep 2, 2020

by Ahmed Imam

6.2k points

1 answer

5 votes

100k views

A steel band blade, that was originally straight, passes over8-in.-diameter pulleys when mounted on a band saw. Determine themaximum stress in the blade, knowing that it is 0.018 in. thick and0.625 in.

Yatin Khullar asked Sep 2, 2020

by Yatin Khullar

4.9k points

1 answer

3 votes

189k views

All bodies at a temperature above absolute zero emit thermal radiation. a)-True b)-False

SevenEleven asked Sep 2, 2020

by SevenEleven

5.8k points

1 answer

2 votes

46.6k views

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