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 21, Problem 9RQ
What is the major difference between an indicator lamp and a warning light?
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The assembly shown consists of a weightless, rigid bar AC, pinned at B, that is attachedto the steel and aluminum rods. Initially, bar AC is in horizontal position; there is agap, Δ = 9 mm, between the lower end of the steel rod and its pin support at D.Neglecting the weight of the rods, compute their stresses when they are subjected to atemperature increase of 35°C and the lower end of the steel rod is attached to itssupport.
answers: σSt = 194.617 MPaσAl = 97.308 MPa
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3. Three cables at an ambient temperature of 75°C are connected in series. The assemblyis subjected to a total tension force P = 3.75 kN. The properties of the three cables aregiven in the provided table.a. At 100°C, what is the total elongation of the assembly?b. If the said cables are arranged in a parallel assembly, determine the stress anddeformation of each cable subjected to the same tension force given andtemperature change in (a).
Answers: (a) PSt = 96.019 kN (C) PAl = 170.789 kN (T)(b) σSt = 40.884 MPa σAl = 53.311
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A rod is composed of three segments subjected to axial loads as shown. The propertiesof each segment are given in the provided table. Determine the failure stresses of eachmaterial if the whole assembly experienced:a. A total temperature drop of 50°C and sprung 1.2 mm.b. A total temperature rise of 50°C, and assuming it is firmly attached to unyieldingsupports.Assume FS = 1.85.
ANSWERS: (a) σfail St = 356.952 MPa σfail Br = 93.126 MPa σfail Al = 91.615 MPa (b) σfail St = 320.754 MPa σfail Br = 148.912 MPa σfail Al =
Chapter 21 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 21 - True or False? A driver information center...Ch. 21 - What is the purpose of an IVR?Ch. 21 - Explain how an air-core gauge works.Ch. 21 - What are two ways to provide input for the...Ch. 21 - Describe the two types of instrument panel...Ch. 21 - What is the device found in some fuel tanks to...Ch. 21 - What is the correct way to check a coolant...Ch. 21 - What type of sending unit is typically used to...Ch. 21 - What is the major difference between an indicator...Ch. 21 - True or False? The ABS lamp turns on whenever the...
Ch. 21 - The indicator needle on a speedometer is held to...Ch. 21 - Which of the following uses a permanent magnet and...Ch. 21 - What type of memory is used to store the...Ch. 21 - Which of the following is not a true statement...Ch. 21 - Which of the following statements about oil gauge...Ch. 21 - While discussing what the maintenance reminders...Ch. 21 - None of the engines gauges works: Technician A...Ch. 21 - The oil pressure light stays on whenever the...Ch. 21 - A digital speedometer constantly reads 0 mph:...Ch. 21 - All gauges operate but read lower than normal:...Ch. 21 - When testing an engine temperature sensor:...Ch. 21 - The coolant temperature gauge stays low (cold)...Ch. 21 - While discussing the instrumentation on a Toyota...Ch. 21 - The TPM warning lamp is lit: Technician A says...Ch. 21 - The yellow electronic throttle control warning...
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- Complete solution and Fbd only. I prefer handwritten solution. I will Upvote Three cables at an ambient temperature of 75°C are connected in series. The assemblyis subjected to a total tension force P = 3.75 kN. The properties of the three cables aregiven in the provided table.a. At 100°C, what is the total elongation of the assembly?b. If the said cables are arranged in a parallel assembly, determine the stress anddeformation of each cable subjected to the same tension force given andtemperature change in (a). answers: (a) δtotal = 19.969 mm(b) σA = 50.357 MPa; δA = 1.923 mm σB = 160.858 MPa; δB = 2.486 mm σC = 78.836 MPa; δC = 2.196arrow_forwardFind the heat transfer per unit area through the composite wall. Assume one dimensional heat flow.Please DO NOT USE AI, I need a real answer.arrow_forwardDetermine the heat transfer per unit area through the composite wall that is outlined. Assume a one-dimensional heat flow.arrow_forward
- What is gearboxarrow_forward3 Water at 15°C ( p = 999.1 kg/m³ and µ = 1.138 × 10¯³kg/m.s) is flowing steadily in a 34-m-long and 6-cm-diameter horizontal pipe made of stainless steel at a rate of 10 L/s. Determine the pressure drop, the head loss, and the pumping power requirement to overcome this pressure drop. The roughness of stainless steel is 0.002 mm. 10 L/s 6 cm L The pressure drop is 34.77 kPa. The head loss is 3.55 m. (Round the final answer to two decimal places.) The pumping power requirement is 0.348 kW. (Round the final answer to three decimal places.)arrow_forward6 10 ints awarded Scored Gasoline ( p = 680 kg/m³ and v = 4.29 × 107 m²/s) is transported at a rate of 240 L/s for a distance of 2 kilometre. The surface roughness of the piping is 0.03 mm. If the head loss due to pipe friction is not to exceed 14 m, determine the minimum diameter of the pipe using the third Swamee-Jain formula. (Round the final answer to three decimal places.) The minimum diameter of the pipe is 0.443 m.arrow_forward
- 1 Water at 15°C ( p = 999.1 kg/m³ and µ = 1.138 × 10¯¯³kg/m.s) is flowing steadily in a 34-m-long and 6-cm-diameter horizontal pipe made of stainless steel at a rate of 10 L/s. Determine the pressure drop, the head loss, and the pumping power requirement to overcome this pressure drop. The roughness of stainless steel is 0.002 mm. eBook Hint 10 L/s 6 cm L The pressure drop is The head loss is kPa. |m. (Round the final answer to two decimal places.) The pumping power requirement is three decimal places.) kW. (Round the final answer toarrow_forward3 eBook Hint Air enters an 15-m-long section of a rectangular duct of cross section 15 cm x 20 cm made of commercial steel at 1 atm and 35°C at an average speed of 5 m/s. Disregarding the entrance effects, determine the fan power needed to overcome the pressure losses in this section of the duct. The properties of air at 1 atm and 35°C are p = 1.145 kg/m³, µ = 1.895 × 10−5 kg/m·s, and v = 1.655 × 10¯5m²/s. The roughness of commercial steel surfaces is = 0.000045 m. (Round the final answer to three decimal places.) L 15 cm Air 20 cm 5 m/s The fan power needed to overcome the pressure losses is 4.0695 W.arrow_forward12) A particle is moving along a circular path having a radius of 6 in. such that its position as a function of time is given by 0 = sin 3t, where 0 is in radians, the argument for the sine are in radians, and t is in seconds. Determine the acceleration of the particle at 0 = 30°. The particle starts from rest at 0 = 0°.arrow_forward
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