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mash [69]
3 years ago
11

Casting is usually performed in • Industries • Furnaces • Foundries • Both 1" and 2nd

Engineering
1 answer:
spayn [35]3 years ago
4 0

Answer: Foundries

Explanation: Casting is the method of making the liquid material to be shaped into solid form by being poured in a mold and having a hollow cavity . The liquid then turns into a solid state and this is known as casting. the casting odd metal is usually carried out in different shapes by the help of furnaces ,gases, molds etc.This process is usually performed in the certain industries known as foundry.

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A gas is compressed isothermally in a piston-cylinder assembly from 7.6 bar, 77 °C to 3.05 bar. Determine the work and heat tran
yaroslaw [1]

Answer:

The work done or the heat transfer for air and hydrogen are 91.71 kj/kg and 1317.89 kj/kg respectively.

Explanation:

Given:

Initial pressure is 7.6 bar.

Initial temperature is 77 °C.

Final pressure is 3.05 bar.

Calculation:

(a)

Take air as an ideal gas with gas constant 0.287 kj/kgK.  

Step1

For isothermal process work done and heat transfer is the same because of no change in internal energy.

Work done is calculated as follows:

W=RT_{1}ln\frac{P_{1}}{P_{2}}

W=0.287(77+273)ln\frac{7.6}{3.05}

W = 91.71 kj/kg.

Thus, the work done or the heat transfer for isothermal process is 91.71 kj/kg.

Step2

For isothermal process work done and heat transfer is the same because of no change in internal energy. Take Hydrogen as an ideal gas with gas constant 4.1242 kj/kgK.

Work done is calculated as follows:

W=RT_{1}ln\frac{P_{1}}{P_{2}}

W=4.1242(77+273)ln\frac{7.6}{3.05}

W = 1317.89 kj/kg.

Thus, the work done or the heat transfer for isothermal process is 1317.89 kj/kg.

4 0
3 years ago
A tool used to drive and pull out nails​
Tju [1.3M]

Answer:

claw hammer

Explanation:

A claw hammer is a tool used for driving nails into an object or pulling nails from some other object.

6 0
2 years ago
Read 2 more answers
Primary U.S. interstate highways are numbered 1-99. Odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90)
IrinaVladis [17]

Answer:

#include <iostream>

using namespace std;

int main()

{

int inputNumber ;

cout << "Enter an interstate highway number:";

cin >> inputNumber ;

if(inputNumber<=0 || inputNumber >= 1000)

cout << inputNumber << " is not a valid interstate highway number" << endl ;

else{

if(inputNumber > 99){

cout << "I-"<<inputNumber<< " is auxiliary, ";

int temp = inputNumber % 100 ;

cout <<"serving I-"<<temp<<", ";

if(temp%2==0){

cout << "going east/west." << endl;

}

else{

cout << "going north/south." << endl;

}

}

else{

cout << "I-"<<inputNumber<< " is primary, ";

if(inputNumber%2==0){

cout << "going east/west." << endl;

}

else{

cout << "going north/south." << endl;

}

}

}

return 0;

}

Explanation:

  • Check if input number is greater than 99, then display that the input number is auxiliary.
  • Check if remainder of input number/2 is equal to 0, then display that going east/west.
3 0
3 years ago
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3 years ago
What tools do you need to change a flat tire
Lyrx [107]

Answer:

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6 0
4 years ago
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