Tech Manual for Erjavec's Automotive Technology: A Systems Approach
6th Edition
ISBN: 9781133933731
Author: ERJAVEC, Jack, Thompson, Rob
Publisher: Delmar Cengage Learning
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Chapter 23, Problem 6ASRQ
Technician A says that some antitheft systems sound an alarm if someone enters the vehicle without a key Technician B says that some antitheft devices prevent the engine from starting. Who is correct?
- Technician A
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5: The structure shown was designed to support a30-kN load. It consists of a boom AB with a 30 x 50-mmrectangular cross section and a rod BC with a 20-mm-diametercircular cross section. The boom and the rod are connected bya pin at B and are supported by pins and brackets at A and C,respectively.1. Calculate the normal stress in boom AB and rod BC,indicate if in tension or compression.2. Calculate the shear stress of pins at A, B and C.3. Calculate the bearing stresses at A in member AB,and in the bracket.
4: The boom AC is a 4-in. square steel tube with a wallthickness of 0.25 in. The boom is supported by the 0.5-in.-diameter pinat A, and the 0.375-in.-diameter cable BC. The working stresses are 25ksi for the cable, 18 ksi for the boom, and 13.6 ksi for shear in the pin.Neglect the weight of the boom.1. Calculate the maximum value of P (kips) based on boom compression and the maximum value of P (kips) based on tension in the cable.2. Calculate the maximum value of P (kips) based on shear in pin.
3: A steel strut S serving as a brace for a boat hoist transmits a compressive force P = 54 kN to the deck of a pier as shown in Fig. STR-08. The strut has a hollow square cross section with a wall thickness t =12mm and the angle θ between the strut and the horizontal is 40°. A pin through the strut transmits the compressive force from the strut to two gusset plates G that are welded to the base plate B. Four anchor bolts fasten the base plate to the deck. The diameter of the pin is 20mm, the thickness of the gusset plates is 16mm, the thickness of the base plate is 8mm, and the diameter of the anchor bolts is 12mm. Disregard any friction between the base plate and the deck.1. Determine the shear stress in the pin, in MPa and the shear stress in the anchor bolts, in MPa.2. Determine the bearing stress in the strut holes, in MPa.
Chapter 23 Solutions
Tech Manual for Erjavec's Automotive Technology: A Systems Approach
Ch. 23 - Prob. 1RQCh. 23 - Describe telematics.Ch. 23 - What should be checked if none of the grids in a...Ch. 23 - True or False? Rain-sensitive wiper systems...Ch. 23 - What component in a wiper system makes it possible...Ch. 23 - Name the two most common problems that occur with...Ch. 23 - Prob. 7RQCh. 23 - Prob. 8RQCh. 23 - What could be the problem when the vehicles dome...Ch. 23 - Rear defrosters generally have a relay with a...
Ch. 23 - Prob. 11RQCh. 23 - Prob. 12RQCh. 23 - Which of the following parts or circuits could...Ch. 23 - When diagnosing a vacuum/mechanical cruise control...Ch. 23 - Prob. 15RQCh. 23 - Prob. 1ASRQCh. 23 - Prob. 2ASRQCh. 23 - Prob. 3ASRQCh. 23 - The reasons for slower than normal wiper operation...Ch. 23 - Prob. 5ASRQCh. 23 - Technician A says that some antitheft systems...Ch. 23 - The circuit breaker at a power seat motor...Ch. 23 - Prob. 8ASRQCh. 23 - 9. Technician A says that navigational systems...Ch. 23 - While diagnosing a cruise control system that does...
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