Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 12, Problem 3MC
To ensure proper seating of the valve, the valve seat must be.
- the correct width
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The spool is sealed along the
clearance between moving spool
and
O housing (valve body)
case
cylinder
O pipe
The velocity of flow increases when valve openings decreases
Select one:
O True
O False
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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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Which of the following statements is not true? Normally the desired valve face-to-seat contact area for intake valves is 1 inch. Normally the desired valve face-to-seat contact area for exhaust valves is 1 inch. The average valve seat width is 0.060 inch and the average seat begins 0.030 inch from the valve margin. A properly reconditioned seat has the correct seat width and sealing position on the valve face.arrow_forwardWhat should you do if a valve does not move freely in its bore in the valve body?arrow_forwardWhen fitting a freshly ground valve into a freshly ground seat: Technician A says that the seat should be ground more with the same stone if the margin is too small. Technician B says that the seat should be ground more with the same stone if the valve seat is too high. Who is correct?arrow_forward
- What device in the valve train changes rotary motion into reciprocating motion? a. Eccentric Cam Bushing Mandrelarrow_forwardAn AND valve can allow flow alternatively from its inlets. Select : true or Falsearrow_forwardHow to operate single acting cylinder by using 3/2 direction control valve? EXTEND RETRACT M Pump (b) Piston 2 Filter Oil Tank (a) Piston 1arrow_forward
- Which of the following is not true of knurling? It is one of the fastest techniques for restoring the ID dimensions of a worn valve guide. It reduces the amount of work necessary to reseat the valve. It is useful for restoring badly worn guides to their original condition. None of the above.arrow_forwardTechnician A says that positive valve stem seals fit tightly around the top of the valve guide. Technician B says that positive stem seals scrape oil off the valve as it moves up and down. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhat is purpose of Pressure relief valve?arrow_forward
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