Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 12, Problem 8MC
To determine
The device in the valve train changes rotary motion into reciprocating motion.
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What device in the valve train changes rotary motioninto reciprocating motion?a. Eccentricb. Camc. Bushingd. Mandrel
What is the main difference between a crankshaft and a cam shaft
A six cylinder engine has a 1 5 3 6 2 4 firing order. Technician A says that after cylinder number 1 begins its intake stroke, the crankshaft will have to travel 240° before cylinder number 3 begins its intake stroke. Technician B says that when cylinders number 3 and 4 are at TDC, cylinders number 5 and 2 are at BDC. Who is right? And explain why.
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B
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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- Tech a says that the push on the piston top during the power stroke is transferred to the crank shaft through the connecting rod. Tech b states that the power is transferred from the piston through the valve train to the camshaft. Who is correct?arrow_forwardcan be used to adjust the advance-stroke speed. Select one: O a. 5/2 way valve O b. Double acting cylinder O . One way flow control valve O d. Solenoid valvearrow_forwardQ1- Explain the duties of camshaft, distributor and alternator, which are among the engine partsarrow_forward
- 4. How fast must a gear pump be run to produce a flowrate of 4.0 GPM if the displacement is 0.4 in³? 0 5. Draw the schematic symbol for a check-valve. 6. Draw the schematic symbol for a pressure relief valve. 7. Draw the schematic symbol for a 4-way, 3-position, manual control, spring-centered, closed-center directional control valve. 8. Draw a schematic diagram for a hydraulic system that controls a double-acting cylinder for a log-splitter. Your design must include the following components: a. Electric Motor b. Hydraulic Pump c. Foot Valve d. Pressure relief valve e. 4-way, 2-position, manually activated, detented directional control valve f. Double-acting cylinderarrow_forwardAn offset type of follower in which the motion follower is along an axis from the axis of the cam center.arrow_forwardWhich of the following ensures proper timing of the intake and exhaust valve events? The length of the tappets relative to the pushrods. Proper pairing of the gear set joining the crankshaft to the camshaft. The pulse timer mounted in series with the piston. The installation of the flywheel key.arrow_forward
- Number of explosions of piston on a single cylinder, four stroke cycle engine in 100 revolutions of the crankshaft. Ans. 50 explosionsarrow_forwardThe Cam an to mobile enginesis o follower generally used inarrow_forwardA six-cylinder engine has a 1 5 3 6 2 4 firing order. Technician A says that after cylinder number 1 begins its intake stroke, the crankshaft will have to travel 240° before cylinder number 3 begins its intake stoke. Technician B says that when cylinder number 3 and 4 are at TDC, cylinders number 5 and 2 are at BDC. Who is correct and explain why? Technician A Technician B Both A and B Neither A nor Barrow_forward
- In IC engines,the connecting rod converts reciprocating motion to rotary motion a. FALSE b. TRUEarrow_forwardFor developing high head, the impellers are mounted in _________ a. series and parallel b. parallel c. parallel in different shaft d. seriesarrow_forwardIn most of internal combustion engines, crankshaft bearing is Select the correct answer below: A. Ball bearings B. Hydrodynamic journal bearing C. Roller Bearings D. Hydrostatic journal bearingarrow_forward
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