What would happen if the intake valve in a diesel engine is too small?
Less air would enter the cylinder
The intake valve controls how much air can flow into the cylinder during the induction stroke, and its opening size limits that flow.
A smaller intake valve restricts the passage, so the volume of air that can enter the cylinder in the available time is reduced.
With less air drawn in, the cylinder is poorly filled, which lowers the oxygen available for combustion and hurts engine performance.
A small valve does not admit more fuel, raise exhaust, or cool the engine, so those effects do not follow.
Hence, the answer is Less air would enter the cylinder.
What would most likely happen if the carburettor-type air cleaner is clogged with dirt?
During maintenance, a supervisor asks the role of a turbocharger when atmospheric pressure is low. How does it help the engine?
A customer complains about sluggish acceleration at low speeds in a diesel vehicle with a fixed-geometry turbocharger. How does a variable geometry turbocharger address this issue?
What is the main advantage of using superchargers in marine engines?
An engine exhibits erratic idling and excessive smoke after the induction manifold was
reinstalled. What should be evaluated first regarding the diesel induction system's
function?
If a supercharger is driven directly by the engine through gears and shafts, what will
happen for engine operation at higher speeds?
Which ECU-controlled feature adjusts the intake air path into the engine?
Supercharging in marine engines is done to:
Which filter is used in the intake manifold of an engine?
Which of the following is tightened with wing nuts?
Which of the following filters is fitted on the intake manifold?