Recent questions in Engineering

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1. Which of the following will cause a spark knock?

Bas Peeters asked Mar 18, 2021

by Bas Peeters

4.6k points

2 answers

2 votes

115k views

A 300 mm long steel bar with a square cross section (25 mm per edge) is pulled in tension with a load of 83,051 N , and experiences an axial elongation of 0.18 mm. Assuming that the deformation is entirely

GhostFlying asked Mar 18, 2021

by GhostFlying

5.8k points

1 answer

5 votes

172k views

An insulated tank having a total volume of 0.6 m3 is divided into two compartments. Initially one compartment contains 0.4 m3 of hydrogen at 127 oC, 2 bar and the other contains nitrogen at 27 oC, 4 bar.

ASHISH R asked Mar 18, 2021

by ASHISH R

5.8k points

1 answer

4 votes

121k views

What is Elon Musk mad about?

Dunston asked Mar 18, 2021

by Dunston

5.1k points

2 answers

0 votes

233k views

Suppose an op amp has a midband voltage gain of 500,000. If the upper cutoff frequency is 15 Hz, what does the frequency response look like? (Malvino, 20150123) Malvino, A. (20150123). Electronic Principles,

Simon Corcos asked Mar 18, 2021

by Simon Corcos

4.0k points

1 answer

0 votes

142k views

Using a roof calculator or rafter length guidebook, calculate the theoretical length of the common rafters for a gable roof on a building which is 12’ wide by 36’ long, with a slope of 5/12.

Wondra asked Mar 18, 2021

by Wondra

4.5k points

1 answer

1 vote

136k views

What is the relationship between the problem and the objective

Erik Williams asked Mar 18, 2021

by Erik Williams

5.1k points

1 answer

0 votes

168k views

A continuous and aligned fiber-reinforced composite having a cross-sectional area of 1130 mm2is subjected to an external tensile load. If the stresses sustained by the fiber and matrix phases are 156 MPa

Gpmcadam asked Mar 18, 2021

by Gpmcadam

5.4k points

1 answer

5 votes

45.9k views

A differential amplifier is very useful for removing common mode noise voltage that might be fed or induced in the signal cables. Suppose the input signal coming from a signal wire is Vs. Because of potential

Glostas asked Mar 18, 2021

by Glostas

4.7k points

1 answer

2 votes

12.1k views

A man weighs 145 lb on earth.Part ASpecify his mass in slugs.Express your answer to three significant figures and include the appropriate units.Part BSpecify his mass in kilograms.Express your answer to

Vamsidhar asked Mar 18, 2021

by Vamsidhar

5.5k points

1 answer

3 votes

52.7k views

Which organism breaks down dead and dying waste in an ecosystem

StrangeQuirks asked Mar 18, 2021

by StrangeQuirks

5.5k points

1 answer

5 votes

11.2k views

Suppose that a class CalendarDate has been defined for storing a calendar date with month, day and year components. (In our section handout, the class was called Date, but we have renamed it here because

Nikkypx asked Mar 18, 2021

by Nikkypx

5.5k points

1 answer

5 votes

97.2k views

Technician A says powdered metal rods can be resized just like a regular rod. Technician B says powdered metal rods can be resized if bearings of a larger diameter are available for that particular engine.

Jay Lu asked Mar 18, 2021

by Jay Lu

5.5k points

1 answer

2 votes

152k views

Which of the following is NOT an effect of alcohol?

Subrata Mondal asked Mar 18, 2021

by Subrata Mondal

5.7k points

2 answers

5 votes

103k views

A brass alloy is known to have a yield strength of 275 MPa, a tensile strength of 380 MPa, and an elastic modulus of 103 GPa. A cylindrical specimen of this alloy 12.7 mm in diameter and 250 mm long is

BenPearce asked Mar 18, 2021

by BenPearce

4.5k points

1 answer

5 votes

230k views

Education is an ongoing process in every field. a. True b. False

M B asked Mar 18, 2021

by M B

5.5k points

1 answer

4 votes

89.0k views

The common-emitter current gains of two transistors are β =60 and β =150. Determine the corresponding common-base current gains. (b) The commonbase current gains of two transistors are α =0.9820 and α

Mr Bean asked Mar 18, 2021

by Mr Bean

5.2k points

2 answers

2 votes

56.7k views

A wheel tractor is operating in it is fourth gear range with full rated revolution per minute. Tractors speed is 7.00 miles per hour. Ambien air temperature is 60 Fahrenheit, and operating attitude is

Vilas Kumkar asked Mar 18, 2021

by Vilas Kumkar

4.7k points

1 answer

1 vote

11.9k views

Refrigerant 134a is compressed with no heat transfer in a piston–cylinder assembly from 30 lbf/in.2 , 20F to 160 lbf/in.2 The mass of refrigerant is 0.04 lb. For the refrigerant as the system, W 0.56 Btu.

Antonv asked Mar 18, 2021

by Antonv

5.2k points

1 answer

5 votes

31.1k views

A steel sphere, at 300°C, holds water at 100 kPa, 300°C. The system (steel plus water) cools to the ambient temperature of 20°C by losing 1988 kJ of heat. During this process the entropy of the steal sphere

MadManMonty asked Mar 18, 2021

by MadManMonty

4.9k points

1 answer

0 votes

151k views

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