Recent questions in Engineering

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A heat engine is a device able to transform work into heat. a. True b. False

Touchstone asked Jan 16, 2021

by Touchstone

3.8k points

1 answer

5 votes

172k views

Fluid flow in a pipe, the pressure decrease due to throttle valve from 10 bar to 100 kpa if the specific volume of fluid increase from 0.3 m3 /kg to 1.8 m3/kg. Find the change in internal energy during

Connor Spangler asked Jan 16, 2021

by Connor Spangler

4.2k points

1 answer

4 votes

80.3k views

The flowchart below shows the design steps required to build a working model. Build Model Observe Model Design Model Make Improvements to Model Test Model Analyze Results Draw Conclusions and Report Results

Tomas Andrle asked Jan 16, 2021

by Tomas Andrle

4.3k points

1 answer

2 votes

100k views

If 230 VDC is applied to a motor with a resistance of 10 ohms, how much current would be drawn?

Priojewo asked Jan 16, 2021

by Priojewo

4.5k points

1 answer

0 votes

133k views

An Otto cycle with air as the working fluid has a compression ratio of 8.2. Under cold air standard conditions, what is the thermal efficiency of this cycle?

Roman Gaufman asked Jan 16, 2021

by Roman Gaufman

4.5k points

1 answer

5 votes

85.1k views

Air,in a piston cylinder assembly, is initially at 300 K and 200 kPa.It is then heated at constant pressure to 600 K. Determine the change in internal energy of air per unit mass, using: a) The ideal gas

Michael Melanson asked Jan 16, 2021

by Michael Melanson

3.9k points

2 answers

4 votes

141k views

A Three-Phase transformer has a total series impedance of 0.01+j0.05 pu. The total impedance of the magnetization part of the transformer is very big and can be ignored in the modeling. The transformer

Oliver Angelil asked Jan 16, 2021

by Oliver Angelil

3.9k points

1 answer

0 votes

196k views

You can change lanes during a turn long as there’s no traffic and you driving slowly

SomoKRoceS asked Jan 16, 2021

by SomoKRoceS

3.6k points

2 answers

4 votes

234k views

4.13 Compare thermoplastic and thermosetting polymers (a) on the basis of mechanical characteristics upon heating and (b) according to possible molecular structures.

Gregory Kuhn asked Jan 16, 2021

by Gregory Kuhn

3.6k points

1 answer

3 votes

132k views

The output current of an amplifier is 190 mA and the input current is 32 mA. The current gain of the amplifier is:

Harry Vangberg asked Jan 16, 2021

by Harry Vangberg

4.1k points

1 answer

4 votes

107k views

A civil engineer designs a wheelchair accessible ramp next to a set of steps leading up to a building. The height from the ground to the top of the stairs is 3ft. Based on ADA codes, the slope must be

JohnSz asked Jan 16, 2021

by JohnSz

4.0k points

1 answer

0 votes

65.0k views

Gear A has 30 teeth & Gear B has 20 teeth. If Gear A rotates at 1000rpm, what speed does Gear B rotate at?

Trodrigues asked Jan 16, 2021

by Trodrigues

4.0k points

1 answer

5 votes

135k views

A converging-diverging nozzle is designed to operate with an exit Mach number of 1.75 . The nozzle is supplied from an air reservoir at 5 MPa. Assuming one-dimensional flow, calculate the following: a.

Pepita asked Jan 16, 2021

by Pepita

4.0k points

1 answer

3 votes

201k views

If you’re using the Chrome browser and a JavaScript application stops running due to an error in the JavaScript code, you can identify the statement that caused the error by a.pressing F12, clicking on

Nyanev asked Jan 15, 2021

by Nyanev

3.7k points

1 answer

3 votes

136k views

6.58 In World War II, voice radio scramblers used modulation schemes to distort a signal so that enemy forces could not understand it unless it was demodulated properly. In one scheme, a signal x (t),

Luqi asked Jan 15, 2021

by Luqi

4.4k points

1 answer

5 votes

56.2k views

_____________ is when a member is being pulled apart. Group of answer choices tension shear torsion compression

Ggoha asked Jan 15, 2021

by Ggoha

4.1k points

1 answer

1 vote

226k views

When comparing solids to fluids, the following is true: for elastic solids, the stress must be normal. For Newtonian fluids, the stress must be shear. for elastic solids, the stress must be shear. For

Chrislovecnm asked Jan 15, 2021

by Chrislovecnm

3.9k points

2 answers

4 votes

109k views

The line voltage of a balanced three-phase transmission line is 4200 V rms. The transmission line has an impedance of 4 6 Z j l   per phase. Assuming that the load receives a total of 1 MVA at 0.75

Peter Bowers asked Jan 15, 2021

by Peter Bowers

3.8k points

1 answer

2 votes

5.6k views

How many states have a % that is more than 1% of US population?

Iloahz asked Jan 15, 2021

by Iloahz

3.8k points

1 answer

5 votes

21.1k views

2. Controlled-access highways permit traffic to enter them only from interchanges. * True False

Garanda asked Jan 15, 2021

by Garanda

4.1k points

1 answer

0 votes

129k views

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