FORESTRY
GENERAL FORESTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Of the below choices, which is the most common reason for seizure (cylinder/piston failure) of a chainsaw?
|
|
Hole in the fuel line
|
|
|
Dirty air filter
|
|
|
Letting the saw run as fast idle with the chain brake on
|
|
|
Using a non-resistor spark plug
|
Explanation:
Detailed explanation-1: -The most common causes of piston failures include: their insufficient cooling, insufficient lubrication of the piston guiding part, thermal fatigue of the piston head surface, failures due to an incorrect combustion process, and mechanical damage.
Detailed explanation-2: -Bright spots in the upper cylinder area Excessive ingress of oil into the combustion chamber due to defective components. Increased emissions of blow-by gases with oil entering the intake air system. Insufficient separation of oil vapour from the blow-by gases. Frequent idling or short-distance drives.
Detailed explanation-3: -Cracked Piston Detonation is the most likely cause of a cracked or broken piston.
There is 1 question to complete.