Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 9, Problem 6MC
Which of the following is an expression of how much of the heat formed during the combustion process is available as power from the engine?
Mechanical efficiency
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Chapter 9 Solutions
Automotive Technology
Ch. 9 - Prob. 1SACh. 9 - Describe what takes place during the four strokes...Ch. 9 - As an engines compression ratio increases, what...Ch. 9 - What test can be performed to check the efficiency...Ch. 9 - Describe five ways in which an engine can be...Ch. 9 - Prob. 6SACh. 9 - True or False? In an HCCI engine, combustion...Ch. 9 - True or False? SAE mandates that engine, when...Ch. 9 - True or False? The camshaft is always located in...Ch. 9 - Which of the following statements about engines is...
Ch. 9 - Which stroke in the four-stroke cycle begins as...Ch. 9 - Which of the following is not a true statement...Ch. 9 - Technician A says head gasket thickness has an...Ch. 9 - The stroke of an engine is the crank throw half...Ch. 9 - Which of the following is an expression of how...Ch. 9 - While diagnosing the cause for blue smoke from the...Ch. 9 - Prob. 2ASRQCh. 9 - While determining the cause for air leaking out of...Ch. 9 - While diagnosing the cause for an engine having...Ch. 9 - While looking at the results of an oil pressure...Ch. 9 - A vehicle is producing a sharp, metallic rapping...Ch. 9 - While conducting an engine vacuum test; Technician...Ch. 9 - While determining the most likely problem of an...Ch. 9 - When a customer states that black exhaust smoke is...Ch. 9 - Technician A says that if an engine had good...
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- How does a GDI system provide for a stratified charge in the combustion chamber?arrow_forwardThe spark-ignition engines run on a mixture of gasoline and air. The amount of mixture the engine can take in depends upon following major factors: (i) Engine displacement. (ii) Maximum revolution per minute (rpm) of engine. (Hi) Carburetor air flow capacity. (iu) Volumetric efficiency of engine. Explain each of the above factor in detail.arrow_forwardWhat is the average efficiency of internal combustion? (Indicate the types of internal combustion engine and corresponding efficiency.)arrow_forward
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- discuss the Compression-ignition engine its parts and functionsarrow_forwardWhich measure does not necessarily increase the boiler efficiency? Please choice one below : Increasing combustion efficiency Decreasing temperature of the exhaust gases Minimizing heat losses Increasing air-fuel ratio None of thesearrow_forwardTwo units four-stroke, 6-cylinder diesel engine is running at a speed of 1200 rpm is used to supply power to a free port zone. The fuel oil used has 26 ˚API with a temperature of 85 ˚F. Other engine data are as follows: Generator efficiency = 95% Mechanical efficiency = 87% Overall thermal efficiency = 65% Expansion ratio = 2.6 Cut-off ratio = 5 Volume at the end of combustion = 2.1 ft3 Mean effective pressure = 120 psi For continuous operation, how many days a fuel storage tank size 30 feet long and 20 feet diameter be consumed if the tank is initially full?arrow_forward
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