Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 29, Problem 11RQ
Low fuel pressure can be caused by all of the following except.
a. a clogged fuel filter
b. a restricted fuel line
c. a fuel pump that draws too high amperage
d. a dirty filter sock in the tank
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Consider steady flow of air through the diffuser portion of a wind tunnel. Along the centerline of the diffuser, the air speed decreases
from entrance to exit as sketched. For the velocity field, calculate the fluid acceleration along the diffuser centerline as a function of x
and the given parameters. For L = 1.56 m, entrance = 21.00 m/s, and exit = 17.5 m/s, calculate the acceleration at x = 0 and
x = 1.0 m.
Dexis
Dentrance
x=0
u(x)
"exit
"entrance
x=L
The acceleration at (x = 0) is
-47 m/s².
The acceleration at (x = 1.0 m) is
42.1 m/s. (Include a minus sign if necessary.)
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A bird is flying in a room with a velocity field of
▼ = (u, v, w) = (0.6xî + 0.2t j−1.4ĥ) m/s. The room is heated by a
heat pump so that the temperature distribution at steady state is
T(x, y, z) = (400–0.2(5x) 2-0.4y-0.6%) ˚C. Calculate the temperature
change that the bird feels after 10.00 seconds of flight, as it flies through
x = 1m. (Round the final answer to three decimal places.)
The temperature change that the bird feels after 10.00 seconds of flight is
1.120
°C/s.
Hot air at atmospheric pressure and 85°C enters a 10 m long un-insulated
duct of cross section 0.15 m by 0.15 m that passes through the attic of a house
at a rate of 0.1 m³/s. The duct surface is observed to be nearly isothermal at
70°C. Determine the exit temperature of the air and the rate of heat loss from
the duct to the air space in the attic.
Attic
space
Air
85°C 70°C
0.1 m²³½
Chapter 29 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 29 - Fuel pump is a statement of the volume of the fuel...Ch. 29 - Explain the purpose of the relief valve and...Ch. 29 - Most fuel tank filler caps contain a pressure...Ch. 29 - What type of fire extinguisher should you have...Ch. 29 - What is the first thing that should be...Ch. 29 - Why is a plastic or metal restrictor placed in...Ch. 29 - Low fuel pump pressure causes a mixture and...Ch. 29 - True or False? Fuel pressure typically is at its...Ch. 29 - If fuel pump pressure or volume is less than...Ch. 29 - Which of the following statements about a fuel...
Ch. 29 - Low fuel pressure can be caused by all of the...Ch. 29 - If a fuel system loses pressure immediately after...Ch. 29 - List at least five safety precautions that should...Ch. 29 - Describe the operation of the evaporative system...Ch. 29 - True or False? On todays vehicles, an electric...Ch. 29 - Technician A says that excessively high pressure...Ch. 29 - Technician A replaces a damaged steel fuel line...Ch. 29 - While discussing electric fuel pumps: Technician A...Ch. 29 - To relieve fuel pressure on an EFI car: Technician...Ch. 29 - While discussing quick-disconnect fuel line...Ch. 29 - While discussing fuel filters: Technician A says...Ch. 29 - While discussing the various fuel filters used in...Ch. 29 - While discussing fuel tank filler pipes and caps:...Ch. 29 - While discussing electric fuel pumps: Technician A...Ch. 29 - While discussing electric fuel pumps: Technician A...
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