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alexandr1967 [171]
2 years ago
14

Question 3

Engineering
1 answer:
Dmitry [639]2 years ago
6 0

Answer:

  22

Explanation:

The tour length will be the sum of the lengths of its segments. Here, we will figure the length using the greedy algorithm.

__

Starting at B=2, the nearest unvisited city is C=3, a distance of 1.

From C, the nearest unvisited city is A=0, a distance of 3.

From A, the nearest unvisited city is D=10, a distance of 10.

The return trip from D to B is a distance of 8.

The total length of the tour is ...

  1 + 3 + 10 + 8 = 22

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In addition to passing an ASE certification test, automotive technicians must have __________ year(s) of on the job training or
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Two years or one year
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2 years ago
The two shafts of a Hooke’s coupling have their axes inclined at 20°.The shaft A revolves at a uniform speed of 1000 rpm. The sh
lapo4ka [179]

Answer:

33.429 N-m

Explanation:

Given :

Inclination angle of two shaft, α = 20°

Speed of shaft A, N_{A} = 1000 rpm

Mass of flywheel, m = 30 kg

Radius of Gyration, k =100 mm

                                   = 0.1 m

Now we know that for maximum velocity,

\frac{N_{B}}{N_{A}} = \frac{cos\alpha }{1 - sin^{2}\alpha }

\frac{N_{B}}{1000} = \frac{cos20}{1 - sin^{2}20 }

N_{B} = 1064.1 rpm

Now we know

Mass of flywheel, m = 30 kg

Radius of Gyration, k =100 mm

                                   = 0.1 m

Therefore moment of inertia of flywheel, I = m.k^{2}

                                                                      =30 X 0.1^{2}

                                                                     = 0.3 kg-m^{2}

Now torque on the output shaft

T₂ = I x ω

    = 0.3 X 1064.2 rpm

    = 0.3\times \frac{2\pi \times 1064.1}{60}

     = 33.429 N-m

Torque on the Shaft B is 33.429 N-m

4 0
3 years ago
Which of the following are all desirable properties of a hydraulic fluid? a. good heat transfer capability, low viscosity, high
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Answer:

e.Fire resistance,Inexpensive,Non-toxic.

Explanation:

Desirable hydraulic property of fluid as follows

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2. Low density

3. Ideal viscosity

4. Fire resistance

5. Better heat dissipation

6. Low flammability

7. Good lubrication capability

8. Low volatility

9. Foam resistance

10. Non-toxic

11. Inexpensive

12. Demulsibility

13. Incompressibility

So our option e is right.

5 0
3 years ago
(a) In a 3-phase, 4-wire system, the currents are in the A, B, and C lines under abnormal conditions of loading were as follows:
Verizon [17]

Answer:

Check the attached image below

Explanation:

Kindly check the attached image below to get the step by step explanation to the question above.

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