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 13, Problem 3ASRQ
Technician A uses soft gaskets on valve covers. Technician B uses soft gaskets on water pumps. Who is correct?
- Technician A
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Students have asked these similar questions
Q1.Given the unity feedback system with a forward path transfer function,
G(s) =
=
K
(s+1)(s+2)(s+6)
. Do the following:
(a) Draw the root locus
(b) Find the gain, K, and natural frequency for a damping ratio 0.5.
(c) Find the range or value of gain, K for
i. overdamped ii. critically damped iii. Undamped iv. underdamped
Q. 1: The partial Routh array of a unity feedback system is given below.
S6
1
Adel
8
S5
1
S4
2
Bash
6
-4
0
C
0
How many roots does it have in the right half plane? Comment on the
stability of the system. Determine the characteristic equation of the system.
Q.2: Find the values of Ki and K2 for the system shown in the figure below
when Mp=0.25% and tp= 4 sec. assume unit step input.
R(S)
K₁
C(S)
1+ K₂S
Temperature
EXAMPLE 1: A diesel engine is fitted with a turbocharger,
which comprises a radial compressor driven by a radial
exhaust gas turbine. The air is drawn into the compressor at
a pressure of 0.95 bar and at a temperature of 15°C, and
is delivered to the engine at a pressure of 2.0 bar. The
engine is operating on a gravimetric air/fuel ratio of 18: 1,
and the exhaust leaves the engine at a temperature of
600°C and at a pressure of 1.8 bar; the turbine exhausts at
1.05 bar. The isentropic efficiencies of the compressor and T(K)
turbine are 70 per cent and 80 per cent, respectively.
Calculate (i) the temperature of the air leaving the
compressor (ii) the temperature of the gases leaving the
turbine (iii) the mechanical power loss in the turbocharger
expressed as a percentage of the power generated in the
turbine. Using the values of : Cpair = 1.01 kJ/kg K, Vair = 1.4
Cpex = 1.15 kJ/kg K, Yex = 1.33
and
2s
с
P2
Engine
P3
W
W₁ = mexpex (T3-TA)
At
W₁ = mair Cpex
(T2-T₁)
4
P4…
Chapter 13 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 13 - True or False? Make sure you locate and adhere to...Ch. 13 - How does a torque-to-yield bolt differ from...Ch. 13 - How do seals differ from gaskets?Ch. 13 - Where are thread sealers most often used?Ch. 13 - What are the major differences between aerobic and...Ch. 13 - Which of the following statements is incorrect?...Ch. 13 - True or False? Valve lash is adjusted in many...Ch. 13 - Which of the following statements about the...Ch. 13 - True or False? The computer in most late-model...Ch. 13 - Graphite is. an anaerobic substance an RTV an...
Ch. 13 - Which of the following are considered soft, cut...Ch. 13 - What material is typically not used to form a rear...Ch. 13 - Which of the following statements about preparing...Ch. 13 - On hybrid vehicles, how can you identify the high...Ch. 13 - True or False? Some crankshaft and camshaft timing...Ch. 13 - Prob. 1ASRQCh. 13 - Technician A uses adhesives to hold gaskets in...Ch. 13 - Technician A uses soft gaskets on valve covers....Ch. 13 - Technician A inspects all sealing surfaces for...Ch. 13 - Technician A says that oil pan gaskets are often...Ch. 13 - Prob. 6ASRQCh. 13 - While discussing proper engine break-in:...Ch. 13 - Prob. 8ASRQCh. 13 - Prob. 9ASRQCh. 13 - While selecting the proper RTV for a particular...
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