EBK AUTOMOTIVE TECHNOLOGY
6th Edition
ISBN: 9780135257470
Author: Halderman
Publisher: VST
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Textbook Question
Chapter 23, Problem 7CQ
Lower than specified oil pressure is measured on a high mileage engine. Technician A says that wom main or rod bearings could be the cause. Technician B says that a clogged oil pump pickup screen could be the cause. Which technician is correct?
- a. Technician A only
- b. Technician B only
- c. Both Technicians A and B
- d. Neither Technician A nor B
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4. An impeller rotating at 1150 rpm has the following data: b, = 1 ¼ in., b2 = ¾ in., d, = 7 in., d2 =
15 in., B1 = 18", B2 = 20°, cross-sectional area A = Db if vane thickness is neglected. Assuming radial inlet flow, determine the theoretical
capacity in gpm
head in ft
horsepower
5. If the impeller in Problem (4) develops an actual head of 82 ft and delivers 850 gpm at the point of maximum efficiency and requires 22 BHP. Determine
overall pump efficiency
virtual velocities V2 and W2
(30 pts) Problem 1
A thin uniform rod of mass m and length 2r rests in a smooth hemispherical bowl of radius r. A
moment M
mgr
4
is applied to the rod. Assume that the bowl is fixed and its rim is in the
horizontal plane.
HINT: It will help you to find the length l of that portion of the rod that remains outside the
bowl.
M
2r
a) How many degrees of freedom does this system have?
b) Write an equation for the virtual work in terms of the angle 0 and the motion of the
center of mass (TF)
c) Derive an equation for the variation in the position of the center of mass (i.e., Sŕƒ)
a. HINT: Use the center of the bowl as the coordinate system origin for the problem.
d) In the case of no applied moment (i.e., M 0), derive an equation that can be used to
solve for the equilibrium angle of the rod. DO NOT solve the equation
e) In the case of an applied moment (i.e., M
=
mgr
= -) derive an equation that can be used to
4
solve for the equilibrium angle of the rod. DO NOT solve the equation.
f) Can…
Please show all work step by step
Chapter 23 Solutions
EBK AUTOMOTIVE TECHNOLOGY
Ch. 23 - What causes a wedge-shaped film to form in the...Ch. 23 - What is hydrodynamic lubrication?Ch. 23 - Explain why internal engine leakage affects oil...Ch. 23 - Describe how the oil flows from the oil pump,...Ch. 23 - What is the purpose of a windage tray?Ch. 23 - Normal oil pump pressure in an engine is...Ch. 23 - Two technicians are discussing oil pumps....Ch. 23 - A typical oil pump can pump how many gallons per...Ch. 23 - In typical engine lubrication systems, what...Ch. 23 - Hydrodynamic lubrication created by the wedging...
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