1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SCORPION-xisa [38]
3 years ago
10

What will happen in a wire drawing operation when the cross-sectional area has a reduction of 60% in a single pass?

Engineering
1 answer:
Fofino [41]3 years ago
4 0

Answer:

DRAWING LOAD IS  3.67 A_{O}\sigma

Explanation:

wire drawing is a method of obtaining wire of bigger large diameter from iron rod . it is cold process which need die to obtain wire

drawing load for wire drawing is given as P = A_{F}*\sigma*ln(\frac{A_{O}}{A_{F}})

Where A f is initial area, Ao is original area, σ is yield stress

as given in question sectional area reduce 60%, therefore

A_{f} = A_{O}- 0.6A_{O}

    = 0.4 A_{O}

Due to change in area ,drawing load p is

p = 0.4A_{O}*\sigma*ln(\frac{A_{O}}{0.4A_{O}})

p = 3.67 A_{O}\sigma

You might be interested in
How long...you...novels? A. Have/write B. Do/write C. Have/written D. Did/go
soldi70 [24.7K]

Answer:

Answer is B.

Explanation:

Subject verb agreement

3 0
3 years ago
Read 2 more answers
A 50kg block of nickel at 90°C is dropped into an insulated tank that contains 0.5 m3 of liquid water at 25°C. Determine the fol
Valentin [98]

Answer:

a).Control volume

b). C_{nickel} = 502.416 J/kg-K

c).  C_{water} = 4.187 kJ/kg-K

d). T_{2} = 87.91°C

Explanation:

a). It is a control volume system because mass is varying in the system.

b). Specific heat of nickel is C_{nickel} =   502.416 J/kg-K

c). Specific heat of water is  C_{water} = 4.187 kJ/kg-K

d).We know that

   net  energy transfer = change in internal energy

m_{nickel}\times c_{nickel}(T_{2}-T_{nickel})=m_{water}\times c_{water}(T_{2}-T_{water})

m_{nickel}\times c_{nickel}(T_{2}-T_{nickel})=(volume_{water}\times density_{water})\times c_{water}(T_{2}-T_{water})

50\times 502.416\times (T_{2}-90)=(0.5\times 1000)\times 4.187\times (T_{2}-25)

25120.8\times (T_{2}-90)=2093.5\times  (T_{2}-25)

T_{2} = 87.91°C

6 0
3 years ago
Read 2 more answers
Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days): Car Repa
Usimov [2.4K]

Answer:

The answer is "F".

Hope this helped!

3 0
3 years ago
Armature reaction in a dc machine A) is due to an increase of the armature voltage. B) occurs when the motor is connected to an
SCORPION-xisa [38]

Answer:

D) is due to an increase of the armature current.

Explanation:

Option D is correct because on the DC motor, when the load increases, it leads to an increase in the armature current.

The armature current then sets up a magnetic flux which opposes the main field flux. The net field flux gets reduced. It is at this point, the armature reaction occurs.

Armature reaction is seen as the effect of magnetic flux which is usually set up by an armature current. This occurs when there is the distribution of flux under the main poles.

There are two effects the armature flux causes on the main field flux.

1. The main field flux is distorted by the armature reaction.

2. The magnitude of the main field flux is reduced by the armature flux.

6 0
3 years ago
Q1. (20 marks) Entropy Analysis of the heat engine: consider a 35% efficient heat engine operating between a large, high- temper
Anvisha [2.4K]

The rate of gain for the high reservoir would be 780 kj/s.

A. η = 35%

\frac{w}{Q1} = \frac{35}{100}

W = 1.2*\frac{35}{100}*1000kj/s

W = 420 kj/s

Q2 = Q1-W

= 1200-420

= 780 kJ/S

<h3>What is the workdone by this engine?</h3>

B. W = 420 kj/s

= 420x1000 w

= 4.2x10⁵W

The work done is 4.2x10⁵W

c. 780/308 - 1200/1000

= 2.532 - 1.2

= 1.332kj

The total enthropy gain is 1.332kj

D. Q1 = 1200

T1 = 1000

\frac{1200}{1000} =\frac{Q2}{308} \\\\Q2 = 369.6 KJ

<h3>Cournot efficiency = W/Q1</h3>

= 1200 - 369.6/1200

= 69.2 percent

change in s is zero for the reversible heat engine.

Read more on enthropy here: brainly.com/question/6364271

6 0
3 years ago
Other questions:
  • For turbulent now the friction factor is function of (Reynolds number —surface roughness -both the Reynolds number and the surfa
    10·1 answer
  • An inductor (L = 400 mH), a capacitor (C = 4.43 µF), and a resistor (R = 500 Ω) are connected in series. A 44.0-Hz AC generator
    11·1 answer
  • A solid square rod is cantilevered at one end. The rod is 0.6 m long and supports a completely reversing transverse load at the
    13·1 answer
  • The combustion of the paraffin oil, which is a highly refined fossil fuel product similar to kerosene composed of C14-C16 hydroc
    8·1 answer
  • The velocity profile for a thin film of a Newtonian fluid that is confined between the plate and a fixed surface is defined by u
    14·1 answer
  • Argue which step in the modeling process is most important to a designer turning a plain gray model of headphones into a stylish
    8·1 answer
  • Select the correct answer. Jude is a mechanical engineer. He works in the automobile industry. He is creating a prototype of an
    13·1 answer
  • F a black car and a white car are left in the Sun, the black car will tend to be hotter. This is because the black car's surface
    11·2 answers
  • Which of the following relationship types most closely resembles the relationship between the national importance of residential
    15·1 answer
  • While discussing possible causes of black smoke from the exhaust of an older heavy-duty Diesel engine, technician a says that bl
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!