Engineering

A month ago

Technician A says that most experts recommend replacing all drum brake hardware including the ...

Technician A says that most experts recommend replacing all drum brake hardware including the springs every time the brake linings are replaced. Technician B says that the starwheel adjuster must be cleaned and lubricated to assure proper operation.

Chris70324 826 1 Reply

6 months ago

Figure below shows a three-stage separation process. The ratio of P3/D3 is 3 the ratio of P2/D2 is 1

Figure below shows a three-stage separation process. The ratio of P3/D3 is 3 the ratio of P2/D2 is 1, and the ratio of A to B in stream P2 is 4 to 1. Calculate the composition and percent of each component in stream E.

CHE 200 -Chem

1 2 3 4

90daytona 4107 44 Replies

Samuel Nwosisi

11 months ago

Method of joints and zero force members

Find all the forces acting on every member and identify any zero force members using method of joints. The angle is 45 degrees.

Anonymous 244 4 Replies

Anonymous

11 months ago

The half-life measures exponential decay. The half-life is defined as the time it takes for half of

The half-life measures exponential decay. The half-life is defined as the time it takes for half of a given amount of radioactive substance to disappear. What is the half-life of radium Ra88226
(in years)? (For radium, the amount of radio

Anonymous 246 1 Reply

Anonymous

A year ago

Method of trusses - Civil Engineering.

Force acting down on joint ‘o’ is 4.8N or 0.5kg and has two pin joints on the other side. Need help

Anonymous 232 2 Replies

Anonymous

A year ago

Sulfur dioxide produced by the combustion of sulfur in air is absorbed in water. Pure SO2 is then ...

Sulfur dioxide produced by the combustion of sulfur in air is absorbed in water. Pure SO2 is then recovered from the solution by steam stripping. Make a preliminary design for the absorption column. The feed will be 5000 kg/hr of gas containing 8 mol

cloveb 437 2 Replies

Ali Ahmed6

A year ago

Calculation of Areas

The following perpendicular offsets were tken from chainline to irregularly bonded line
3.10,4.20,5.35,6.45,7.15,8.25,7.95,5.20
find the area using trapezoidal rule

Johnmaxwell Wekesa 221 1 Reply

A year ago

Hat is the partition coefficient for 3-nitroaniline between diethyl ether and water and benzoic ...

Engineering-Organic Chemistry related questions

Use information available in the Merck Index, and show your calculations to answer the following questions:

a) What is the partition coefficient for 3-nitroaniline between diethyl

cloveb 1250 8 Replies

Toph Beifong

A year ago

A cereal is being dried in a vertical drier by air flowing countercurrent to the cereal. To prevent

A cereal is being dried in a vertical drier by air flowing countercurrent to the cereal. To prevent breakage of the cereal flakes, exit air from the drier is recycled. For W = 1000 kg/h of wet cereal fed to the drier, calculate the input of moist fre

90daytona 610 2 Replies

candelario Ocaña Vazquez

A year ago

Can we remake plastic into a rocket fuel?

Have you heard about the new special type of rocket fuel that is made from plastic waste? One company uses particular kinds of plastic to remake them in rocket fuel

bear56 376 2 Replies

HarrietCole

2 years ago

If these materials were manufactured into a tubular shape and used to replace a section of the vascu

If these materials were manufactured into a tubular shape and used to replace a section of the
vascular system, would degradation be more likely to affect the inner surface or outer surface
of the graft?

Anonymous 247 1 Reply

Anonymous

2 years ago

Further Engineering Mathematics

1. Use the Taylor series centred around a=0 to write the first four terms of the expansion of f(x) = 1/(1+x) and hence write its general formula.

2. A. Write down the first four terms of the Maclaurin expansion for f(x)=ex.
B. Calcul

kennyboii 369 7 Replies

anonymous661

2 years ago

Acid / base

The extraction of acid base.

Fatimaalmasrii 183 1 Reply

2 years ago

What is the partition coefficient for 3-nitroaniline between diethyl ether and water (at room ...

Use information available in the Merck Index, and show your calculations to answer the following questions:

a) What is the partition coefficient for 3-nitroaniline between diethyl ether and water (at room temperature and pH > 8)?

1 2

cloveb 4628 22 Replies

Fatima Almasri

2 years ago

Fixing Car Wiper blade on Driver's right/left glass window pane

https://www.cars24.com/blog/monsoon-car-care-5-important-tips-for-windshield-wiper-of-your-car/

During monsoon season (Heavy rainfall) causes the window glass pane filled with water which is on the right hand side of the Driver in a

prashantakerkar 391 5 Replies

2 years ago

After settling, both layers are clear colourless liquids. How do you know which layer is the organ

Suppose that you have a reaction mixture which consists of 14.2 g of CsCl and 12.0 g of an interesting organic compound dissolved in 100 mL of water. You would like to have the pure organic compound, separate from water and salt, so you decide

cloveb 292 1 Reply

2 years ago

Discuss the purity of each of the recovered compounds (are they pure? how do you know?)

cloveb 299 1 Reply

2 years ago

Write one clear paragraph describing the success (or lack thereof) of your distillation. Based on a

Write one clear paragraph describing the success (or lack thereof) of your distillation. Based on all available experimental data (fraction volumes, boiling points, and corrected refractive indices), was your distillation successful in isolatin

cloveb 278 1 Reply

2 years ago

Why is it necessary to reduce the rate of heating to ~1 to 2 °C per minute near the actual melting ...

Why is it necessary to reduce the rate of heating to ~1 to 2 °C per minute near the actual melting point? Explain what effect a faster rate of heating might have on the observed melting point range.

cloveb 243 2 Replies

2 years ago

Discuss the yield and purity of your isolated product. How can you determine the Identity/purity o

Discuss the yield and purity of your isolated product. How can you determine the
Identity/purity of the products? What factors contributed to poor yield/purity? If there were more time/resources, what could have been done to i

cloveb 286 2 Replies

2 years ago

If you were to repeat this experiment using mixtures of hexane and acetone (in the same proportions)

If you were to repeat this experiment using mixtures of hexane and acetone (in the same proportions) as eluent (i.e. replaced the ethyl acetate with acetone) what effect would you predict this change would have on the Rf values for the analgesics?

cloveb 307 2 Replies

2 years ago

What is the general effect of increasing the proportion of ethyl acetate in the eluent on the Rf of

What is the general effect of increasing the proportion of ethyl acetate in the eluent on the Rf of the five analgesics studied in this lab?

cloveb 329 1 Reply

2 years ago

Describe how TLC could be used to confirm whether a compound was pure or not. Were all of the standa

Describe how TLC could be used to confirm whether a compound was pure or not. Were all of the standard analgesic solutions provided for you in this experiment pure?

cloveb 271 1 Reply

2 years ago

Let’s model the Earth’s magnetic field as resulting from a current loop inside the earth, in the ...

Let’s model the Earth’s magnetic field as resulting from a current loop inside the earth, in the
plane of the equator. Specifically, assume the current loop has radius a = RE/2 and its center
coincides with the center of the earth. Given

cloveb 256 1 Reply

2 years ago

Astronauts on the first trip to Mars take along a pendulum that has a period on earth of 1.50s. The

Astronauts on the first trip to Mars take along a pendulum that has a period on earth of 1.50s.
The period on Mars turns out to be 2.45 s. What is the acceleration due to gravity on Mars?

cloveb 224 1 Reply

2 years ago

What iis Hysteresis

Hysteresis is the difference of the two readings (increasing and
decreasing trends) of the same pressure. You can divide the difference
by the average of the 2 readings to show the hysteresis as fraction of
the pressure at a particular

cloveb 176 N/A

2 years ago

Technician A says a wobble plate moves some compressors' pistons. Technician B...

Technician A says a wobble plate moves some compressors' pistons. Technician B says some swashplate compressors have double-ended pistons. Who is correct?
   a.
Technician B only
   b.
Technician A only
   c.
Neither A

crusermilt 714 1 Reply

3 years ago

A reverse-biased silicon diode is connected in series with a 12 V source and a resistor.The voltage

Select one:

A.
0.7 V.

B.
12 V.

C.
0.3 V.

D.
0 V.

Gixxer089 369 2 Replies

3 years ago

The forward voltage across a conducting silicon diode is about

Select one:

A.
1.3 V.

B.
0.3 V.

C.
-0.3 V.

D.
0.7 V.

Gixxer089 310 3 Replies

3 years ago

On diode check, a shorted diode will measure

Select one:

A.
0.3 V.

B.
0.7 V.

C.
0 V.

D.
0.79 V.

Gixxer089 245 2 Replies

3 years ago

A reverse-biased diode has the ________ connected to the positive side of the source, and the _____

Select one:

A.
cathode, base

B.
cathode, anode

C.
base, anode

D.
anode, cathode

Gixxer089 273 2 Replies

3 years ago

A nonconducting diode is ________ biased.

Select one:

A.
forward

B.
poorly

C.
inverse

D.
reverse

Gixxer089 226 2 Replies

3 years ago

What must be used in series with a forward-biased diode to prevent damage due to excessive current?

Select one:

A.
Resistor

B.
NC switch

C.
Nothing is required

D.
Ammeter

Gixxer089 208 1 Reply

3 years ago

A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates

A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates ast 0oC into still air at 101kPa total pressure. Assuming Raoul's law apples, what will be the composition of the liquid remaining wh

90daytona 1160 1 Reply

3 years ago

Why did my roller luggage's wheels stop turning smoothly?

Two weeks ago, my carry on worked perfectly. But last week the detachable wheels stopped rotating smoothly, when I tried to glide my carry on. The wheels budge JUST A TAD when you push them hard, but it sh

scherz0 366 1 Reply

3 years ago

The numerical equation from Qin Jiushao’s Shushu jiuzhang analyzed in...

20. The numerical equation from Qin Jiushao’s Shushu jiuzhang analyzed in Section 7.4.2 came from the geometrical problem of finding the area of a pointed field. If the sides and one diagonal are labelled as in Figure 7.22 (shown below)

victoria1 735 2 Replies

Alyssa P

3 years ago

Aeroplane tail wing top support fixed with logo design.

What are the advantages provided by having a Tail wing support fixed (One having a logo of the airline carrier) wing on the aircraft top?.

What is the aviation technical term for the same?.
Is it Wing, Glider, Shaft etc?

prashantakerkar 264 N/A

3 years ago

Private charter planes or jets flight naming conventions.

https://blueskypit.com/2020/03/09/deciphering-the-digits-in-your-flight-number/

Do private charter planes & Jets owned require a mandatory three digit or four digit flight number with a flight naming convention similar to Commercial ai

prashantakerkar 208 N/A

3 years ago

Transition from Left Hand drive to Right Hand Drive Car Vehicle

I would like to know the following information.

1 By Default, a Car Automobile is manufactured as Left hand or Right hand drive. In terms of engineering efforts, how easy or difficult is the transition from Left hand to Right hand drive an

prashantakerkar 320 2 Replies