EBK AUTOMOTIVE TECHNOLOGY
5th Edition
ISBN: 9780100659841
Author: Halderman
Publisher: YUZU
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Chapter 9, Problem 5CQ
Two technicians are discussing torque wrenches. Technician A says that a torque wrench is capable of tightening a fastener with more torque than a conventional breaker bar or ratchet. Technician B says that a torque wrench is used to apply a known amount of force to the fastener. 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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motor supplies 200 kW at 6 Hz to flange A of the shaft shown in Figure. Gear B transfers 125 W of power to operating machinery in the factory, and the remaining power in the shaft is mansferred by gear D. Shafts (1) and (2) are solid aluminum (G = 28 GPa) shafts that have the same diameter and an allowable shear stress of t= 40 MPa. Shaft (3) is a solid steel (G = 80 GPa) shaft with an allowable shear stress of t = 55 MPa. Determine:
a) the minimum permissible diameter for aluminum shafts (1) and (2)
b) the minimum permissible diameter for steel shaft (3).
c) the rotation angle of gear D with respect to flange A if the shafts have the minimum permissible diameters as determined in (a) and (b).
Chapter 9 Solutions
EBK AUTOMOTIVE TECHNOLOGY
Ch. 9 - Why are wrenches offset 15 degrees?Ch. 9 - What are the other names for a line wrench?Ch. 9 - What are the standard automotive drive sizes for...Ch. 9 - Which type of screwdriver requires the use of a...Ch. 9 - What is inside a dead-blow hammer?Ch. 9 - Prob. 6RQCh. 9 - When working with hand tools, always _____. a....Ch. 9 - Prob. 2CQCh. 9 - Prob. 3CQCh. 9 - Prob. 4CQ
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