AUTOMOTIVE TECHNOLOGY (W/MINDTAP)
7th Edition
ISBN: 9780357096772
Author: ERJAVEC
Publisher: CENGAGE L
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Chapter 26, Problem 2ASRQ
While discussing ignition systems: Technician A says that an ignition system must supply high-voltage surges to the spark plugs. Technician B says that the system must maintain the spark long enough to burn all of the air-fuel mixture in the cylinder. Who is correct?
a. Technician A
b. Technician B
c. Both A and B
d. Neither A nor B
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a-Write five advantages and two disadvantages of welded joints over riveted joints.
b- Define gas welding.
Q2/ A plate, 75 mm wide and 10 mm thick, is joined with another steel plate by means of single
transverse and double parallel fillet welds, as shown in Figl. The joint is subjected to a maximum
tensile force of 55 kN. The permissible shear stresses in the weld material is 50 N/mm2 respectively.
Determine the required length of each parallel filet weld. (Neglect the tensile stress in the parallel
welding lines and Design based on the shear stresses only)
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1. A round stepped cast iron shaft of diameters d and D with shoulder fillet radius r is
loaded by an axial tensile load P, as shown in the figure below. Compute the value
of P that may be applied to the bar without failure. Given: d = 25 mm, D = 50 mm,
r = 3.75 mm, Sut = 250 MPa, Suc = 380 MPa, N=1.5.
P
2. Make a report about the most effective techniques used by engineers to reduce the
effects of stress concentration.
A conical pivot bearing 150mm in diameter has a cone angle of 120degree . If the shaft supports an axial load of 20kN and the coefficient of friction is 0.03,find the power lost in friction when the shaft rotates at 200r.p.m , assuming 1. Uniform pressure and uniform wear.
Chapter 26 Solutions
AUTOMOTIVE TECHNOLOGY (W/MINDTAP)
Ch. 26 - Explain how voltage is induced in a permanent...Ch. 26 - Explain why dwell time is important to ignition...Ch. 26 - Prob. 3SACh. 26 - Explain how the plugs fire in a two-plug-per-coil...Ch. 26 - Why is high voltage needed to establish a spark...Ch. 26 - Prob. 6SACh. 26 - Modern ignition cables contain fiber cores that...Ch. 26 - Explain the components and operation of a...Ch. 26 - True or False? The spark plug wire is eliminated...Ch. 26 - True or False? A spark plug with two ground...
Ch. 26 - Prob. 1MCCh. 26 - Which of the following is a function of all...Ch. 26 - Reach, heat range, and air gap are all...Ch. 26 - The magnetic field surrounding the coil in a...Ch. 26 - Which of the following electronic switching...Ch. 26 - Technician A says that a magneto resistive sensor...Ch. 26 - While discussing ignition systems: Technician A...Ch. 26 - While discussing ignition timing requirements:...Ch. 26 - While discussing secondary voltage: Technician A...Ch. 26 - Prob. 5ASRQCh. 26 - In El systems using one ignition coil for every...Ch. 26 - While discussing EI systems: Technician A says...Ch. 26 - While discussing El systems: Technician A says...Ch. 26 - Technician A says the switching device controls...Ch. 26 - While discussing spark plugs: Technician A says...
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- An element in plane stress is subjected to stresses ☐ x, y, and xx (see figure). Using Mohr's circle: a) Determine the principal stresses and the maximum in-plane shear stress acting at the point. b) Show these stresses in an appropriate sketch 12 MPa 27 MPa T 60 MPaarrow_forward5 kN-m A beam with an inverted tee-shaped cross section is subjected to positive bending mo- ments of M₂ = 5 kN-m. The cross-sectional dimensions of the beam are shown below. 10 mm Determine: (a) the centroid location, the moment of inertia about the z axis, 40 mm 5 kN-m K 150 mm H 15 mm 120 mm (b) the bending stress at points H and K. ans: 17.83mPa (c) the maximum bending stress produced in the cross section.arrow_forwardEXAMPLE 6.4 Draw the shear and moment diagrams for the beam shown in Fig. 6-7a. 15 kN 80 kN·m -5 m B -5 m (a) 5 kN/m Darrow_forward
- 2) A short rectangular post supports compressive loads of P- 175 kN and Q-90 kN, as shown in the figure below. A top view of the post showing the locations where loads P and Q are applied to the top of the post is also given. Determine the vertical normal stresses at corners a, b, c, and d of the post. P=175 kN Q=90 kN 160 mm 120 mm b 40 mm 160 mm a x d 60 mm 40 mmarrow_forwardFor the beam shown below: Find the equation for the shear force as function of x, V(x), along the x domains A-B (0 ≤ x ≤ 5 m) and B-C (5 m sxs 10 m), and draw the shear diagram for the beam. For each step, draw the associated free body diagram and indicate the equations of equilibrium used. Upload your answers in PDF. 2.5 m 15 kN 5 kN/m 80 kN·m Upload your D B 5m- ―5 marrow_forwardQ What is Theories of Brittle failure? Q, what do you mean for each of what's Coming? utں وہی رہیں > Tyiled , Puc > Sut, So, KP, Kt, q When to use this law. N= Out Ouc * Ouc 1 -Out (01+0₂) I'm a mechanical engineering student. I don't understand What is the difference ductile materials. between Brittle andarrow_forward
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