Recent questions in Engineering

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At the mid-plane of a plate in pure bending the stresses are minimum. a)True b)- False

Nambrot asked May 16, 2020

by Nambrot

5.2k points

1 answer

1 vote

116k views

To 3 significant digits, what is the change of entropy of air in kJ/kgk if the pressure is decreased from 400 to 300 kPa and the temperature is increased from 300 to 900 K? DO NOT ASSUME constant specific

Aakash Goyal asked May 16, 2020

by Aakash Goyal

4.4k points

1 answer

1 vote

10.7k views

Mining is an example of this type of business

Markee asked May 15, 2020

by Markee

4.8k points

1 answer

5 votes

160k views

About ceramics: Only can be optically opaque or semi-transparent. a) True b)-False

Userpal asked May 15, 2020

by Userpal

4.3k points

1 answer

1 vote

121k views

Suppose you are designing a sliding window protocol for a 1 Mbps point-to-point link to the moon, which has a one-way latency of 1.25 seconds. Assume that each frame carries 1 KB of data. (a) How many

Zehava asked May 15, 2020

by Zehava

4.7k points

1 answer

0 votes

230k views

A car accelerates with a = 0.01s m/s^2 with sin meters. The car starts at t = 0 at s = 100 m with v = 12 m/s. Determine the speed at s = 420 m and the time to get there.

Mike Miller asked May 15, 2020

by Mike Miller

5.3k points

1 answer

3 votes

50.7k views

Determine linear atomic density along 11011 direction of a FCC unit cell with a constant a (cube edge length).

Adelarsq asked May 14, 2020

by Adelarsq

4.8k points

1 answer

0 votes

174k views

The heat transfer coefficient decreases with increasing x for both the laminar and turbulent regions a. True b. False

Jhouse asked May 14, 2020

by Jhouse

4.7k points

1 answer

4 votes

216k views

Neutrons are not detected by standard gas-filled, scintillation or solid-state detectors. Why is this? What means are used to detect neutrons?

Noldor asked May 14, 2020

by Noldor

5.1k points

1 answer

4 votes

29.6k views

An electric water heater held at 120° F is kept in a 60°F room. When purchased, its insulation is equivalent to R-5. An owner puts a 30-ft^2 blanket on the water heater, raising its total R value to 15.

Tarponjargon asked May 14, 2020

by Tarponjargon

4.0k points

1 answer

0 votes

121k views

30 points please help! 1.) What position would be the lowest paid in a technology company? A) Customer service representative B) Shift Supervisor C) sales manager D) CEO 2) Oz has no idea what career path

Alshafi asked May 14, 2020

by Alshafi

4.9k points

1 answer

5 votes

17.3k views

Can a real heat engine cycle be more efficient than the Carnot heat engine efficiency?

Timothee asked May 13, 2020

by Timothee

4.6k points

1 answer

2 votes

133k views

The thermal efficiency of two reversible power cycles operating between the same thermal reservoirs will a)- depend on the mechanisms being used b)- be equal regardless of the mechanisms being used c)-

Colin Cochrane asked May 13, 2020

by Colin Cochrane

5.3k points

1 answer

4 votes

231k views

Given Pressure, P=4 MPa and enthalpy, h= 130.96 KJ/kg , what is the amount of entropy?

Tajinder asked May 13, 2020

by Tajinder

4.6k points

1 answer

2 votes

52.1k views

The conditions at the beginning of compression in an Otto engine operating on hot-air standard with k=1.35 and 101.325 kPa, 0.05m3 and 32C. The clearance is 8% and 15kJ are added per cycle. Determine the

Esteban Brenes asked May 13, 2020

by Esteban Brenes

4.8k points

1 answer

5 votes

65.7k views

An unknown gas (k=1.4, c v= 0.716 kJ/kg.K, c_p=1 kJ/kg.K, R = 0287 kJ/kg K) is trapped in a 1 m^3 piston-cylinder device at 1000 KPa and 1000 K. It then undergoes an isothermal (constant-temp) process

Geoff Genz asked May 13, 2020

by Geoff Genz

5.0k points

1 answer

4 votes

75.9k views

What is the black diamond at 19 3/16 on a tape measure used for?

Akam asked May 13, 2020

by Akam

4.7k points

2 answers

0 votes

205k views

An object whose mass is 251 kg is located at an elevation of 24 m above the surface of the earth. For g-9.78 ms, determine the gravitational potential energy of the object, in kJ, relative to the surface

Michas asked May 12, 2020

by Michas

5.2k points

1 answer

5 votes

101k views

What is BCC unit cell and what is FCC unit cell? (10%) Sketch FCC and BCC unit cells by using a small dot to represent an atom.

Able Mac asked May 12, 2020

by Able Mac

4.5k points

1 answer

2 votes

128k views

A_____ transducer is a device that can convert an electronic controller output signal into a standard pneumatic output. A. pneumatic-to-current (P/I) B. voltage-to-pneumatic (V/P) C. current-to-pneumatic

Ganesh H asked May 12, 2020

by Ganesh H

4.1k points

1 answer

1 vote

31.6k views

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