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Elis [28]
2 years ago
14

Technician A says that the paper test could detect a burned valve. Technician B says that a grayish white stain on the engine co

uld be a coolant leak. Who is right
Engineering
1 answer:
Bumek [7]2 years ago
6 0

Answer:

Both Technician A and B are correct.

Explanation: Both are correct, but keep note that different color coolants leave different color  stains.

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A large spherical tank contains gas at a pressure of 400 psi. The tank is constructed of high-strength steel having a yield stre
jok3333 [9.3K]

Answer:

t=2.025 inches

Explanation:

Given that

P = 400 Psi

Yield stress ,σ = 80 ksi

Diameter ,d= 45 ft

We know that

1 ft = 12 inches

d= 540 inches

Factor of safety ,K= 3

The required thickness given as

\dfrac {Pd}{4t}=\dfrac{\sigma}{K}

t=thickness

\dfrac {PdK}{4\sigma}=t

\dfrac {400\times 540\times 3}{4\times 80\times 1000}=t

t=2.025 inches

Therefore thickness will be 2.025 inches.

5 0
3 years ago
An Ideal gas is being heated in a circular duct as while flowing over an electric heater of 130 kW. The diameter of duct is 500
Assoli18 [71]

Answer: The exit temperature of the gas in deg C is 32^{o}C.

Explanation:

The given data is as follows.

C_{p} = 1000 J/kg K,   R = 500 J/kg K = 0.5 kJ/kg K (as 1 kJ = 1000 J)

P_{1} = 100 kPa,     V_{1} = 15 m^{3}/s

T_{1} = 27^{o}C = (27 + 273) K = 300 K

We know that for an ideal gas the mass flow rate will be calculated as follows.

     P_{1}V_{1} = mRT_{1}

or,         m = \frac{P_{1}V_{1}}{RT_{1}}

                = \frac{100 \times 15}{0.5 \times 300}  

                = 10 kg/s

Now, according to the steady flow energy equation:

mh_{1} + Q = mh_{2} + W

h_{1} + \frac{Q}{m} = h_{2} + \frac{W}{m}

C_{p}T_{1} - \frac{80}{10} = C_{p}T_{2} - \frac{130}{10}

(T_{2} - T_{1})C_{p} = \frac{130 - 80}{10}

(T_{2} - T_{1}) = 5 K

T_{2} = 5 K + 300 K

T_{2} = 305 K

           = (305 K - 273 K)

           = 32^{o}C

Therefore, we can conclude that the exit temperature of the gas in deg C is 32^{o}C.

8 0
3 years ago
What are the characteristics of carbon fibre?
nexus9112 [7]

Answer:

high tensile strenth

high stiffness

Explanation:

5 0
3 years ago
Programming Assignment 2 Decimal and IEEE-754 ConversionsObjective: To write a C program (not C++) that converts numbers between
kondaur [170]

Answer:

// Program is written in C Programming Language

// Comments are used for explanatory purpose

// Program starts here

#include<stdio.h>

#include<math.h>

//Function to Convert to float

void To float(int num, int I)

{

//Create a kount variable

int kount;

// Start an iteration

for(kount=i-1; kount>0; kount--)

{

if((num>>kount) && 1) {printf("1");}

else { printf("0"); }

}

}

// Create a user defined variable

typedef union {// Definition

float Number;

struct

{

// Mantissa

unsigned int mant : 23;

// Exponent

unsigned int exp : 8;

// Sign

unsigned int sign: 1;

} raw;

} myfloat; // Variable name

// Create print segment

void printsegment(myfloat var)

{

printf("%d |", var.raw.sign);// Sign

To float(var.raw.exp,8); // Exponent

printf("|");

To float(var.raw.mant,8); // Mantissa

printf("\n");

}

// Function to Convert to Real

unsigned int ToReal(int* dig[], int l, int h)

{

unsigned int f = 0, I;

Start an iteration

for(I = h; I>=l;I--)

{

// Calculate individual value

f = f + dig[I] * pow(2,h-1);

}

return f;

}

// Main method start here

int main()

{

printf("Floating Point Conversion\n");

printf("Select any of the following options\n");

printf("1. Decimal to IEEE754 Conversion\n");

printf("2. IEEE754 to Decimal Conversion\n");

printf("3. Quit");

// Declare integer variable for option

int opt;

// Prompt to select option

printf("Select an option; Option 1 to 3: ");

scanf("%d", $opt);

if(opt == 1)

{

printf("You have selected option 1");

// Declare a user defined variable and a system defined variable

myfloat var; float number;

// Accept input

scanf("%d", number);

// Check for special cases

if(isnan(number/0.0))// Not a number

{

printf("Not a Number");

}

else

{

var.f = number;

// Print Sign

printf("%d | ", var.raw.sign);

// Print Exponent

ToFloat(var.raw.exp,8);

printf(" | ");

// Print Mantissa

ToFloat(var.raw.mant,23);

}

}// End of option 1;

// Beginning of option 2

else if(opt == 2)

{

printf("You have selected option 2");

// Declare an array and two integer variables

unsigned int number[32];

int ctrlno, I = 0;

// Accept input by through an iteration

for(int k = 0; k < 32; k++)

{

// Create a label

label: scanf("%d", ctrlno);

// Check for special cases

if(isnan(ctrlno/0.0))// Not a number

{

printf("Not a Number"); I++;

break;

}

else if(ctrlno>1 || ctrlno < 0)

{

printf("Invalid Number\n Please enter a valid digit");

goto label;

}

else {

// Assign number to array

number[k] = ctrlno;

}

// Check validity of number

if(I != 0)

{

printf(" Invalid Number Representation");

}

else

{

// Declare user defined variable

myfloat var;

// Get sign

var.raw.sign = number[0];

// Get mantissa; From to 31

unsigned f = ToReal(number,9,31);

var.raw.mant = f;

// Get exponent; 1 to 8

f = ToReal(number,1,8);

var.raw.exp = f;

// Print Output

printf("The converted digit is ");

printf("%f", var.f);

}

else

{

// Quit Application

break;

}

return 0;

}

3 0
3 years ago
Which side of the disc sander do you sand on <br> 1. Right <br> 2. Left<br> 3. Up<br> 4. Down
guapka [62]

\mathbb \orange{Answer}

\mathbb \red{ Left}

3 0
2 years ago
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