Does the Briggs & Stratton XR950 engine an overhead valve (OHV) or overhead cam (OHC) design? OHC OHV None of these answers are correct O Neither, VTEC
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- Draw the p-V diagram and typical valve timing diagram for a two stroke IC engine.A engine develops power output for each two engine revolution. * Your answer It is the difference in expansion amounts between the cylinder head and pushrod that effectively increases the space between the valve stem and the rocker's arm. * Your answer On a four-stroke cycle reciprocating engine, which strokes are both valves close? * Intake Power Ignition Compression Exhaust It represents the net power output of the engine at the crankshaft. * Your answer If the fuel/air ratio is proper and ignition timing is correct, the combustion process should be completed just after center at the beginning of the power stroke. * Your answerHow does a 2 stroke engine run?
- Explain the operation of the variable intake manifold, including the benefits provided for low and high rpm? (50 – 70 words)th OHC engine affect valve timing and what should of an 5. M be done when the head needs resurfacing? 4. What usually causes warpage in an aluminum 2. Ho 3. Define valve margin. cylinder head? 5. What are the two ways pushrods can be checked for straightness? 6. True or False 1. True False? Fiat's MultiAir system relies on mechanical, hydraulic, and electronic technol- ogies. 2 True False? Camshaft straightness is checked using V-blocks and a feeler gauge? driel bonir Multiple Choice 1. Which of the following is not true of knurling? a. It is one of the fastest techniques for restor- ing the ID dimensions of a worn valve guide. b. It reduces the amount of work necessary to reseat the valve. C. It is useful for restoring badly worn guides to their original condition. d. Nond• Explain turbo-charged and super-charged engine in comparison to naturally-aspirated engine. • Explain different mechanism between turbo-charging and super-charging. Describe pros and con of both turbo-charged and super-charged engine.
- What defines the combustion chamber of afour-stroke engine?engine and why? 04/ Write a notes on heat balance sheet, draw that on the energy flow and enhance your answers with equations. Quiz a were recorded during a test on a smgo Feder four stroke oi enoineGive 5 operating conditions that affect the volumetric efficiency of SI engine?