AUTOMATIC TRANS...-CLASSRM.+SHOP MANUAL
7th Edition
ISBN: 9781337792158
Author: ERJAVEC
Publisher: CENGAGE L
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Textbook Question
Chapter 32, Problem 7ASRQ
Before replacing any exhaust system component: Technician A soaks all old connections with penetrating oil. Technician B checks the old systems routing for critical clearance points. Who is correct?
a. Technician A
b. Technician B
c. Both A and B
d. Neither A nor B
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9. Design a spur gear drive required to transmit 45 kW at a pinion speed of 800 r.p.m. The velocity ratio
is 3.5 : 1. The teeth are 20° full-depth involute with 18 teeth on the pinion. Both the pinion and gear
are made of steel with a maximum safe static stress of 180 MPa. Assume a safe stress of 40 MPa for
the material of the shaft and key.
10. Design a pair of spur gears with stub teeth to transmit 55 kW from a 175 mm pinion running at 2500
r.p.m. to a gear running at 1500 r.p.m. Both the gears are made of steel having B.H.N. 260. Approximate
the pitch by means of Lewis equation and then adjust the dimensions to keep within the limits set by
the dynamic load and wear equation.
7. A motor shaft rotating at 1440 r.p.m. has to transmit 15 kW to a low speed shaft rotating at 500 r.p.m.
The teeth are 20° involute with 25 teeth on the pinion. Both the pinion and gear are made of cast iron
with a maximum safe stress of 56 MPa. A safe stress of 35 MPa may be taken for the shaft on which
the gear is mounted. Design and sketch the spur gear drive to suit the above conditions. The starting
torque may be assumed as 1,25 times the running torque.
Ruins 20 LW at 100 nm to another shaft running approxi
6.
A two stage reduction drive is to be designed to transmit 2 kW; the input speed being 960 r.p.m. and
overall reduction ratio being 9. The drive consists of straight tooth spur gears only, the shafts being
spaced 200 mm apart, the input and output shafts being co-axial.
Chapter 32 Solutions
AUTOMATIC TRANS...-CLASSRM.+SHOP MANUAL
Ch. 32 - What is the difference between psia and psig...Ch. 32 - Describe two methods to check for a restricted...Ch. 32 - What is acoustic supercharging?Ch. 32 - Describe the basic operation of an intake manifold...Ch. 32 - Prob. 5SACh. 32 - Prob. 6SACh. 32 - True or False? All wastegates are controlled by...Ch. 32 - True or False? Engine misfires can cause a...Ch. 32 - A mini-converter is used _____. a. on small...Ch. 32 - A restricted exhaust system can cause______. a....
Ch. 32 - Which of the following is not characteristic of a...Ch. 32 - Ten psi of turbo boost means that air is being fed...Ch. 32 - What manages turbo output by controlling the...Ch. 32 - What is the first step in turbocharger inspection?...Ch. 32 - Prob. 7MCCh. 32 - Technician A says that a turbocharger has its own...Ch. 32 - Technician A makes sure that the exhaust system is...Ch. 32 - Technician A says vacuum refers to any pressure...Ch. 32 - Technician A uses sandpaper to remove carbon...Ch. 32 - Technician A says that a vacuum leak results in...Ch. 32 - Technician A says that vacuum hose routing for the...Ch. 32 - Before replacing any exhaust system component:...Ch. 32 - A vehicles intake manifold is warped: Technician A...Ch. 32 - Technician A says that the catalytic converter is...Ch. 32 - Technician A says that the exhaust manifold gasket...
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