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zmey [24]
3 years ago
5

A vehicle experiences hard shifting. Technician A says that the bell housing may be misaligned. Technician B says that incorrect

oil may have been put in the transmission. Who is correct? Group of answer choices
Engineering
1 answer:
uysha [10]3 years ago
5 0

Answer:

Technician B

Explanation:

Vehicle hard shifting is a situation whereby the vehicle faces difficulty or shakes when changing gears/speed.

Actually technician B is correct, the primary reason for hard shifting is low level of transmission fluid, hard shifts can also be caused by excessive line pressure due to a clog or malfunctioning shift solenoid.

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Heating of Oil by Air. A flow of 2200 lbm/h of hydrocarbon oil at 100°F enters a heat exchanger, where it is heated to 150°F by
irakobra [83]

Answer:

2062 lbm/h

Explanation:

The air will lose heat and the oil will gain heat.

These heats will be equal in magnitude.

qo = -qa

They will be of different signs because one is entering iits system and the other is exiting.

The heat exchanged by oil is:

qo = Gp * Cpo * (tof - toi)

The heat exchanged by air is:

qa = Ga * Cpa * (taf - tai)

The specific heat capacity of air at constant pressure is:

Cpa = 0.24 BTU/(lbm*F)

Therefore:

Gp * Cpo * (tof - toi) = Ga * Cpa * (taf - tai)

Ga = (Gp * Cpo * (tof - toi)) / (Cpa * (taf - tai))

Ga = (2200 * 0.45 * (150 - 100)) / (0.24 * (300 - 200)) = 2062 lbm/h

5 0
3 years ago
If you stretch a rubber hose and pluck it, you can observe a pulse traveling up and down the hose. What happens to the speed of
stich3 [128]

Answer:

Explanation:if you stretch the hose more tightly the speed of the pulse will reduce..

5 0
3 years ago
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kakasveta [241]

Answer:

With what?

Explanation:

Brainliest?

7 0
3 years ago
Read 2 more answers
What is clearance? What is backlash? What is interference? Explain briefly.
Anton [14]

Explanation:

Clearance:

For easy matching  and dis matching  of  hole and  shaft we use size of hole little bit more than the size of shaft and this difference in size is called clearance.

Backlash:

  It is the clearance between the two mating gear to avoids failure of gears.Actually when temperature of gears increases then at the same time the size of gear also increases ,due this there is a possibility foe jamming of gears so to avoids this backlash is provides.

Interference:

  When two gears are matting then addendum of one gear inters into the deddendum of another gear and due to this gears get jam .This phenomenon is called interference.

5 0
3 years ago
What is Back EMF? How does it limits the speed of a permanent magnet DC?
ss7ja [257]

Answer and Explanation:

The DC motor has coils inside it which produces magnetic field inside the coil and due to thus magnetic field an emf is induced ,this induced emf is known as back emf. The back emf always acts against the applied voltage. It is represented by E_b

The back emf of the DC motor is given by E_b=\frac{NP\Phi }{60A}

Here N is speed of the motor ,P signifies the number of  poles ,Z signifies the the total number of conductor  and A is number of parallel paths

As from the relation we can see that back emf and speed ar dependent on each other it means back emf limits the speed of DC motor

8 0
3 years ago
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