Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 8, Problem 9MC
Which of the following statements about an oils viscosity is not true?
- The ability of oil to resist flow is its viscosity.
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Which of the following statements DOES NOT describe a fluid?
a.lt stays in a constant shape upon application of constant shear stress.
b.It has medium to negligible intermolecular attraction.
c.It takes the shape of its container.
d.It does not have a final deformed state.
Which of the following is TRUE regarding fluid viscosity?
a. An ideal fluid has infinite viscosity.
b.A fluid's kinematic viscosity on earth is the same as its kinematic viscosity on the moon.
c.A Newtonian fluid's viscosity is constant for any magnitude of shear stress.
d.Under constant shear stress, a fluid with higher viscosity has a higher rate of deformation.
Determine the pressure increase that must be applied to 400 L of gasoline (K=1.3GPa) to
reduce it to 370 L.
a.78.0 MPa
b.165 MPa
c.105.4 MPa
d.97.5 MPa
The pressure of air above an oil (s=0.80) surface in a closed tank is 120 kPa. The pressure 3
m below the oil surface in kPa is:
a.149.43
b.143.544
c.138.544
d.23.644
The rate of change of viscosity with temperature is known as viscosity index and high viscosity index means oil will remain the same over a wide range of temperatures,
Select one:
True
False
The rate of change of viscosity with temperature is known as viscosity index and low viscosity index means oil will remain the same over a wide range of temperatures,
Select one:
True
False
Chapter 8 Solutions
Automotive Technology
Ch. 8 - Describe the information found in a VIN.Ch. 8 - List five different types of oil rating systems.Ch. 8 - Why should you wipe off the outside of a zerk...Ch. 8 - List at least five things that should be checked...Ch. 8 - How does a technician determine the proper...Ch. 8 - Explain the purpose of a repair order and describe...Ch. 8 - True or False? Legally, an RO protects the shop...Ch. 8 - True or False? If brake fluid is discolored, the...Ch. 8 - Prob. 3TFCh. 8 - True or False? An oil with the classification of...
Ch. 8 - Technician A stresses the need to follow the...Ch. 8 - Prob. 2MCCh. 8 - Prob. 3MCCh. 8 - While examining the color of an engines coolant:...Ch. 8 - While checking the condition of a vehicles ATF:...Ch. 8 - Technician A says that if a drive belt does not...Ch. 8 - Technician A says that to accurately check brake...Ch. 8 - Which of the following statements about drive belt...Ch. 8 - Which of the following statements about an oils...Ch. 8 - While discussing a vehicles maintenance program:...Ch. 8 - Which of the following is not a true statement...Ch. 8 - While discussing the effects of overtorquing wheel...Ch. 8 - The most commonly used brake fluid in domestic...Ch. 8 - Which of the following greases are best suited for...Ch. 8 - While discussing the special preventive...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- True or False? An oil with the classification of 5W-30 has the viscosity of both a 5- and 30-weight oil. The 5W means the oil has a viscosity of 5 when warm and a 30 rating when it is cold.arrow_forwardGiven two oil According to the standard by Society Automotive Engineers the oil , by comparing the 5W-30 with the 10W-30, a. The 5W-30 has lower viscosity than 10W-30 at low temperature. O b. The 5W-30 has higher viscosity at the high temperature. c. Both of the oils are suitable for cold weather O d. All of the above are true.arrow_forwardAs the temperature of the oil incresases of oil decreases. Specific volume O Viscosity Capillarity Surface tensionarrow_forward
- Define any four different properties of lubricating oil?arrow_forwardAs the temperature of the nitrogen gas increases of same gas increases. Viscosity Weight density Specific volume Densityarrow_forwardQuestion 40 Which of the following statements are true? Bulk modulus can be negative. When AP increases for a fluid, AV also increases. A liquid is often considered to be "incompressible." A more compressible fluid will have a higher bulk modulus. None of the other statements are true.arrow_forward
- i) rank 20w-50, 5w- 30 and 10w-30 motor oils in terms of increasing viscosity ii)List three (3) ways in which the accuracy of results could be improved in a viscosity experimentarrow_forward7- As the temperature of the nitrogen gas increases _______________ of same gas increases. Viscosity Specific volume Weight density Densityarrow_forwardExplain how each of the following testing methods are carried out and what outcomes can be identified from the test results. (80 - Words) a. Compression test b. Cylinder leak-down test c. Oil pressure test d. Vacuum testarrow_forward
- Typically during a pressure test, the pressure should not drop more than_____ psi between shifts.arrow_forwardWhich is not true about viscosity? Viscosity is an intensive property A fluid at rest has zero shear stress Viscosity is sometimes referred to as fluidity Viscosity can be dependent on temperature Deformation of fluids halts at a fixed strain rate Immersed object in fluid are not restricted by its relative motion Viscosity is a property that represents the internal resistance of a fluid to motionarrow_forwardWhich of the following is/are extensive property of fluid? Weight Specific volume Color Mass Density Relative density Viscosityarrow_forward
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