Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 12, Problem 7MC
What type of valve lifter automatically compensates for the effects of engine temperature?
a. Hydraulic
b. Solid
c. Roller
d. All of the above
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Chapter 12 Solutions
Automotive Technology
Ch. 12 - Explain staged and continuously variable value...Ch. 12 - Prob. 2SACh. 12 - Define valve margin.Ch. 12 - What usually causes warpage in an aluminum cylin...Ch. 12 - What are the two ways pushrods can be checked for...Ch. 12 - True False? Fiats MultiAir system relies on...Ch. 12 - True False? Camshaft straightness is checked using...Ch. 12 - Which of the following is not true of knurling? It...Ch. 12 - To allow the engine to run on the Atkinson cycle,...Ch. 12 - To ensure proper seating of the valve, the valve...
Ch. 12 - Many engines with WT have a phaser mounted to the...Ch. 12 - Multiple valve engines tend to be more efficient...Ch. 12 - Which of the following is not a type of valve...Ch. 12 - What type of valve lifter automatically...Ch. 12 - Prob. 8MCCh. 12 - While discussing the reasons for resurfacing a...Ch. 12 - While inspecting the timing gears of an engine:...Ch. 12 - Technician A says that positive valve stem seals...Ch. 12 - Prob. 4ASRQCh. 12 - Technician A says an engine may use one or more...Ch. 12 - Technician A says it is not necessary to measure...Ch. 12 - While discussing the Valvetronic system:...Ch. 12 - While checking a hydraulic phaser after the...Ch. 12 - While servicing a pair of aluminum cylinder heads:...Ch. 12 - While discussing camshafts Technician A says valve...
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- Which of the following are not typically found in the block of a modern engine? a. Pistons b. Crankshaft c. Valves d. Oil pumparrow_forwardWhy must hydraulic line pressures increase when there is an increase of load on the engine?arrow_forwardWhat device in the valve train changes rotary motioninto reciprocating motion?a. Eccentricb. Camc. Bushingd. Mandrelarrow_forward
- A valve may be operated by any of the following except? a. none of the choices b. electronically c. mechanically d. manuallyarrow_forwardHow does a servo valve work?arrow_forwardWhich of the following statements is not true? A direct acting PRV: Is complex in construction, therefore can malfunction if a very small dirt gets trapped inside the valve, which may result in safety hazard Offers uneven flow Does not provide precise pressure control Causes more wastage of HP compared to a compound one Which of the following basic system components has the primary function of removing the heat of compression from the air? Receiver Relief valve Pressure regulator Dryer Aftercooler Which of the following statements is true? A single acting cylinder may have two ports at two different ends and pressurized fluid can be directed to both of them A single acting cylinder with two ports will can be used as a double acting cylinder A single acting cylinder may have two ports at two different ends but into only one of the ports pressurized fluid is being directed A single acting cylinder…arrow_forward
- Carbon deposits on the intake valve or seat may cause the valve not to close properly. Tech a says that the flywheel will be harder to spin when starting the engine. Tech b says that the engine will loose power. Who is correct?arrow_forwardWhat is the function of On/Off valve?arrow_forwardWhat is 5 and 2 in 5/2 two way valve?arrow_forward
- Identify the D.C. valve employed to reverse the direction of flow and explain its working withneat diagramarrow_forwardTrue or False? Valve lash is adjusted in many different ways; however, on many OHC engines, the clearance is set by replacing a shim.arrow_forwardWhy must the reverse flow valve and the flashback arrestor be checked on a regular basis?arrow_forward
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