Bundle: Automotive Technology: A Systems Approach, 6th + MindTap Auto Trades, 4 terms (24 months) Printed Access Card
6th Edition
ISBN: 9781305361454
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 31, Problem 10RQ
What is the difference between the pulse width and the duty cycle of an injector?
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Example (7):
Determine the heating surface area
required for the production of 2.5kg/s of
50wt% NaOH solution from 15 wt% NaOH
feed solution which entering at 100 oC to
a single effect evaporator. The steam is
available as saturated at 451.5K and the
boiling point rise (boiling point evaluation)
of 50wt% solution is 35K. the overall
heat transfer coefficient is 2000 w/m²K.
The pressure in the vapor space of the
evaporator at atmospheric pressure. The
solution has a specific heat of 4.18kJ/
kg.K. The enthalpy of vaporization under
these condition is 2257kJ/kg
Example (6):
5:48 م
An evaporator is concentrating F kg/h at
311K of a 20wt% solution of NaOH to 50wt
%. The saturated steam used for heating is
at 399.3K. The pressure in the vapor space
of the evaporator is 13.3 KPa abs. The
5:48
O
Design a speed warning system that receives on two lines, an indication of the
speed limit on the highway. There are three possible values 45, 55, or 65 MPH.
It receives from the automobile, on two other lines, an indication of the speed of
the vehicle. There are four possible values under 45, between 46 and 55,
between 56 and 65, and over 65 MPH. It produces two outputs. The first, F,
indicates whether the car is going above the speed limit. The second, G, indicates
that the car is driving at a "dangerous speed" _ defined as either over 65 MPH or
more than 10 MPH above the speed limit. The inputs are coded as follows:
Speed limit A
B
Speed
C
D
45 0
0
65
1
1
a) Complete the Truth table for the speed warning system
Inputs
Outputs
A
B
C
D
F
G
b) Write the Minterm expressions for the Output Functions.
c) Minimize the output functions
d) Implement the logic
e) Using LabView, verify the Correctness of the Speed Warning System.
Ex. The cantilever beam shown us, made ofrem steel with = 552 MPa
is
,
ut
subjected to fully reversed load. Neglect shear stress
effect, estimate wheather the beam is safe or not safe at N= lo cycles
9
The beam is machined surface and the operating temp. is 100C.
A
F
200
a=0
N
-200
N
1
L= 10cm
D
time
764
Yze.25 Gm
L
D= 1.3 cm
d = 1 cm
b= 1 cm
-momend
diagram
AA
-FL
at the root of the cantilever, the bending moment is max.
factor
Ex. Repeat Ex. in page (24), with fluctuating load as shown
below. By = 46242,041 = 552 MPa. Find the safety
(NF) using Modified -Goodman, Gerber, and soderberg criterias
F(N).
....400
time
Chapter 31 Solutions
Bundle: Automotive Technology: A Systems Approach, 6th + MindTap Auto Trades, 4 terms (24 months) Printed Access Card
Ch. 31 - List four service precautions for working on the...Ch. 31 - What is indicated by a LTFT reading of 24 percent?Ch. 31 - What is the correct procedure for checking an...Ch. 31 - What is the difference between STFT and LTFT?Ch. 31 - The PCM checks for a closed throttle plate each...Ch. 31 - Which of the following is a likely cause of a lean...Ch. 31 - What problem may result from dirt buildup on an...Ch. 31 - Which of the following would not cause a...Ch. 31 - What is the correct way to test an injector with...Ch. 31 - What is the difference between the pulse width and...
Ch. 31 - How can you use a dual trace scope to make sure...Ch. 31 - What are three possible problems that can allow...Ch. 31 - What is the purpose of having two accelerator...Ch. 31 - What is indicated by a negative LTFT value?Ch. 31 - True or False? The signals from an air-fuel ratio...Ch. 31 - While discussing the causes of...Ch. 31 - While discussing IAC valve diagnosis: Technician A...Ch. 31 - While discussing IAC motor removal, service, and...Ch. 31 - While discussing injector testing: Technician A...Ch. 31 - While discussing airflow sensors: Technician A...Ch. 31 - While discussing scan tool diagnosis of fuel...Ch. 31 - While discussing a high idle speed problem:...Ch. 31 - While discussing the causes of a rich air-fuel...Ch. 31 - While diagnosing an idle speed problem: Technician...Ch. 31 - While looking at fuel trim values: Technician A...
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