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Zolol [24]
2 years ago
15

Periodic lubrication and oil changes according to manufacturer’s recommendations extend the life of your vehicle, and allow you

to avoid costly repairs, and prevent dangerous breakdowns. Generally, owner's manuals suggest that you change your oil and oil filter every ........... miles. Oil change specialists. however, suggest every ...... miles or ........ months. As you know, most of us do a lot of long distance driving during the summer months when an engine is can overheat. So, you should at least check your oil before you head out on any road trip.
1000, 3000, 2
7,500, 3000, 3
2000, 6000, 4
500,1500, 1
Engineering
1 answer:
Vladimir79 [104]2 years ago
6 0

There are different kinds of rules that applies to engine oils.  Generally, owner's manuals suggest that you change your oil and oil filter every <u>7,500 </u>miles. Oil change specialists. however, suggest every <u>3000 </u>miles or <u>3 </u>months.

<h2>What is Periodic lubrication and oil changes </h2>

Periodic lubrication and oil changes in vehicles is usually done on the advice made by manufacturer. This is often done so as;

  • To make the shelf life of vehicles to be longer .
  • To allow you to not spend your money on unnecessary or costly repairs
  • To prevent dangerous breakdowns on the highways.

It is advisable to always check your owner's manual for the type and when to use lubrications and oil changes and make sure that the right oil/fluid is used for all component.

Learn more about lubrication from

  • brainly.com/question/1142755
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Technician A says the final drive assembly always has a gear ratio of 1:1. Technician B says the final drive assembly provides f
Olenka [21]

Answer:

Technician B only is correct

Explanation:

The last stage of gears found between the vehicle transmission system and the wheels is the final drive ratio. The function of the final drive gear assembly is to enable a gear reduction control stage to reduce the rotation per minute and increase the wheel torque, such that the vehicle performance can be adjusted and the final gear ratio can be between 3:1 and 4.5:1 not 1:1

Therefore, technician B only is correct

5 0
3 years ago
Problem definition
LekaFEV [45]

Answer:

ummm thats alot

Explanation:

8 0
3 years ago
Refrigerant-134a at 400 psia has a specific volume of 0.1144 ft3/lbm. Determine the temperature of the refrigerant based on (a)
vekshin1

Answer:

a) Using Ideal gas Equation, T = 434.98°R = 435°R

b) Using Van Der Waal's Equation, T = 637.32°R = 637°R

c) T obtained from the refrigerant tables at P = 400 psia and v = 0.1144 ft³/lbm is T = 559.67°R = 560°R

Explanation:

a) Ideal gas Equation

PV = mRT

T = PV/mR

P = pressure = 400 psia

V/m = specific volume = 0.1144 ft³/lbm

R = gas constant = 0.1052 psia.ft³/lbm.°R

T = 400 × 0.1144/0.1052 = 434.98 °R

b) Van Der Waal's Equation

T = (1/R) (P + (a/v²)) (v - b)

a = Van Der Waal's constant = (27R²(T꜀ᵣ)²)/(64P꜀ᵣ)

R = 0.1052 psia.ft³/lbm.°R

T꜀ᵣ = critical temperature for refrigerant-134a (from the refrigerant tables) = 673.6°R

P꜀ᵣ = critical pressure for refrigerant-134a (from the refrigerant tables) = 588.7 psia

a = (27 × 0.1052² × 673.6²)/(64 × 588.7)

a = 3.596 ft⁶.psia/lbm²

b = (RT꜀ᵣ)/8P꜀ᵣ

b = (0.1052 × 673.6)/(8 × 588.7) = 0.01504 ft³/lbm

T = (1/0.1052) (400 + (3.596/0.1144²) (0.1144 - 0.01504) = 637.32°R

c) The temperature for the refrigerant-134a as obtained from the refrigerant tables at P = 400 psia and v = 0.1144 ft³/lbm is

T = 100°F = 559.67°R

7 0
3 years ago
An amplifier which needs a high input resistance and a high output resistance is : Select one: a. A voltage amplifier b. None of
True [87]

Answer:

None of these

Explanation:

There are different types of amplifiers, and each has different characteristics.

  • Voltage amplifier needs high input and low output  resistance.
  • Current amplifier needs Low Input and High Output  resistance.
  • Trans-conductance amplifier Low Input and High Output resistance.
  • Trans-Resistance amplifier requires High Input and Low output  resistance.

Therefore, the correct answer is "None of these "

3 0
3 years ago
Why was the lack of preparedness of the Federal Emergency Management Agency in the Hurricane Katrina disaster so damaging for th
kolbaska11 [484]

Answer:

B

Explanation:

The Bush administration had prided itself on its unique focus for homeland security and combating terrorism, without adequate preparation for the disaster.

8 0
3 years ago
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