Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
6th Edition
ISBN: 9780135257272
Author: James D. Halderman
Publisher: PEARSON
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Chapter 14, Problem 2RQ
Why are the torque and horsepower of an engine equal at 5252 RPM?
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Chapter 14 Solutions
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
Ch. 14 - What is the formula for determining fuel economy?Ch. 14 - Why are the torque and horsepower of an engine...Ch. 14 - What service operation may require the technician...Ch. 14 - What service operation may require the technician...Ch. 14 - What math function is needed to calculate the...Ch. 14 - Prob. 1CQCh. 14 - Which of the following shows the relationship of...Ch. 14 - Prob. 3CQCh. 14 - Prob. 4CQCh. 14 - Prob. 5CQ
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- 02/ Choose the correct answer from below 1-With an increase of the number of cylinders in a multi cylinder engine the power to weight ratio (a) Decreases. (b) Increases. (c) Remains unaffected. (d) None of the mentioned. 2- Maximum torque is generated by an engine when (a) it runs at lowest speed (b) it develops maximum power (c) it consumes maximum fuel (d) it runs at maximum speed 3- The brake power (B.P.) of the engine is given by (where W= Brake load or dead load in newtons, L= Length of arm in meters, N = Speed of engine in r.p.m., S= Spring balance reading in newtons, D = Dia. of brake drum in meters, and d Dia. of rope in meters). a) B.P = (WL x 2RNV60 watts b) B.P= [(W-S) RDNJ60 watts e) B.P = [(W - S) a (D+d) NJ/60 watts 4- It is assumed that all the processes of an air standard cycle are (a) Reversible. (b) Irreversible. (c) Adiabatic. 5- The volumetric efficiency of a well-designed engine may be. (a) 30 to 40%. (b) 40 to 60% (c) 60 to 70% (d) 75 to 90%. %3D d) All of these.…arrow_forward02/ Choose the correct answer from below 1- With an increase of the number of cylinders in a multi cylinder engine the power to weight ratio (a) Decreases. (b) Increases. (c) Remains unaffected. (d) None of the mentioned. 2- Maximum torque is generated by an engine when (a) it runs at lowest speed (b) it develops maximum power (c) it consumes maximum fuel (d) it runs at maximum speed 3- The brake power (B.P.) of the engine is given by (where W Brake load or dead load in newtons, L Length of am in meters, N= Speed of engine in r.p.m., S Spring balance reading in newtons, D Dia. of brake drum in meters, and d Dia. of rope in meters). a) B.P (WL x 2aNV60 watts b) B.P = [(W- S) nDNJ/60 watts c) B.P [(W-S) a (D+d) NJ/60 watts 4- It is assumed that all the processes of an air standard cycle are (a) Reversible. 5- The volumetric efficiency of a well-designed engine may be. (a) 30 to 40% d) All of these. (b) Irreversible. (c) Adiabatic. (d) Isothermal. (b) 40 to 60%. (c) 60 to 70% (d) 75 to…arrow_forwardwrite an article for one stroke engine:arrow_forward
- Two automobile engines have the same total displacement volume and the same total power produced within the cylinders. List the possible advantages of: (a) A V6 over a straight six. (b) A V8 over a V6. (c) A V6 over a V8. (d) An opposed cylinder four over a straight four. (e) An in-line six over an in-line four.arrow_forwardWhat are the main differences between four stroke and two stroke engines?arrow_forwardWho was the first person to establish a measurement for horsepower?arrow_forward
- Two automobile engines have the same total displacement volume and the same total power produced within the cylinders. List the possible advantages of: (a) A V6 over a straight six. (b) A V8 over a V6. (c) A V6 over a V8.arrow_forward3. A 2-stroke, double-acting, 2L engine is run at speed of 4200 rpm. The volume displacement is, a 0.25 b 0.28 c 0.35 d 0.42arrow_forward. A six-cylinder two-stroke cycle marine diesel engine with 100 mm bore and 120 mm stroke delivers 200 B.H.P. at 2000. R.P.M. and uses 100 kg of fuel per hour. If I.H.P. is 240, determine the following: (a) Torque, (b) Mechanical efficiency, (c) Indicated specific fuel consumption.arrow_forward
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