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2 years ago

Four working ladies a,b c,d are sitting around a table

Engineering

1 answer:

12345 [234]2 years ago

5 0

Answer:

A accountant

D teacher

B cook

C beautician

Explanation:

C is on the right of the accountant, so D (opposite C) is the teacher. The accountant is to the right of the teacher, so cannot be B, and must be A. Then B (opposite A) is the cook, and C (left of B) is the beautician.

Clockwise from A:

A accountant

D teacher

B cook

C beautician

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Evaporation in Double-Effect Reverse-Feed Evaporators. A feed containing 2 wt % dissolved organic solids in water is fed to a do

Ne4ueva [31]

Answer:

472,826 lb/hr

Explanation:

As per the given data:

Solids in feed= 2%

Solids in concentrate= 25%

HTA1 = HTA2 = 1000 ft^2

U1 = 500 Btu/ h ft^2 F & U2 = 700 Btu/ h ft^2 F

Overall material balance: Feed= Distillate + concentrate ----> Eq-1

Component balance: Feed * 0.02 = Distillate * 0 + concentrate * 0.25

Feed = 12.5 * concentrate ---> Eq-2

Boiling point rise = negligible, so solution & solvent vapor temperature will be same.

Assumed that the 1st effect is operating under atmospheric pressure (Boiling point - 212F).

As per the data:

Latent heat 212F = 300 Btu/lb

Latent heat 100F = 320 Btu/lb

As per material balance:

Vapor flowrate * latent heat = Overall HT coefficient * HTA * DT

1st effect: M-1= (500 * 1000 * (326-212)) / 300 = 190,000 lb/hr

2nd effect: M-2= (700*1000 * (212-100)) / 320 = 245,000 lb/hr

Distillate = M-1 + M-2 = 190,000+245,000 = 435,000 lb/hr

Substituting the above in Eq-1

Feed = 435,000 + concentrate

Substitute Eq-2 in the above

12.5 * concentrate = 435,000 + concentrate

Concentrate, L1 = 435,000/11.5 = 37826 lb /hr

Feed, F = 435,000 + 37826 = 472,826 lb/hr

1st effect operating pressure is not given, That may be the reason we are not getting the given answer. But procedure is right.

[ Find the figure in the attachment ]

5 0

2 years ago

Only put coolant into your radiator when the engine is _____.

Arada [10]

Only put ciilant into ur radiator when the engine is cool (D)

5 0

2 years ago

Could a volcanic eruption suddenly bury a city and its inhabitants? (Plz explain to me)

andrezito [222]

Yes a volcanic eruption can suddenly bury a city ! if you look up some stuff on pompeii you can learn more

7 0

2 years ago

When you can do it safely, _____ instead of relying heavily on your brakes. A. Use your emergency brake B. Roll through STOP sig

olganol [36]

Answer:

A. Use your emergency brake

Explanation:

The function of the handbrake is to immobilize the vehicle. If we forget it when parking, we run the risk of the car moving with any contact. For example, if another vehicle hits you from behind, it could move causing an accident or hitting the car in front.

Do not forget to remove the handbrake before starting. If we drive with the handbrake on, the clutch and brakes will wear quickly. Similarly, it is not advisable to use it when hydraulic brakes fail, and less if the vehicle is going at high speed.

The best way to care for the handbrake is to use it only when parking the vehicle. The handbrake has cables that allow pressure on the wheel brakes, and this helps the hydraulic brakes not wear out. In turn, vehicles with disc brakes on the rear wheels have a mechanism called a self-adjuster, which keeps the brake pads aligned avoiding wear.

If we feel any annoying sound when braking, or the braking distance is longer than usual, there is probably a problem with the brake pads. The handbrake and hydraulic brake work under different mechanisms, so whenever you feel that there is a problem with braking, you should consult the mechanic.

If the car is automatic, when is the parking brake used? In the case of cars with automatic transmission, when parking the car is at P and the transmission is immobilized. If the vehicle is on a flat surface, this part exerts little pressure, but if it is on a slope, the entire weight of the vehicle rests on the brake and the transmission itself, therefore the parking brake must be applied.

8 0

2 years ago

Read 2 more answers

Open the"stateData3.c" program and try to understand how the tokenization works. If you open the input file "stateData.txt", you

babymother [125]

Answer:

Kindly see explaination

Explanation:

Code

#include<stdio.h>

#include<stdlib.h>

#include<string.h>

#define size 200

int main(void)

{

int const numStates = 50;

char tempBuffer[size];

char tmp[size];

char fileName[] = "stateData.txt"; // Name of the text file (input file) which contains states and its populations

char outFile[] = "stateDataOutput1.txt"; // Output file name

// Open the input file, quit if it fails...

FILE *instream = fopen(fileName, "r");

/* Output File variable */

FILE *opstream;

if(instream == NULL) {

fprintf(stderr, "Unable to open file: %s\n", fileName);

exit(1);

}

//TODO: Open the output file in write ("w") mode

/* Opening output file in write mode */

opstream = fopen(outFile, "w");

//TODO: Read the file, line by line and write each line into the output file

//Reading data from file

while(fgets(tmp, size, instream) != NULL)

{

//Writing data to file

fputs(tmp, opstream);

}

// Close the input file

fclose(instream);

//TODO: Close the output file

/* Closing output file */

fclose(opstream);

return 0;

}

5 0

2 years ago