HORTICULTURE

Detailed explanation-1: -Position C: When the piston reaches Point 3 it has traveled to the upper end of its stroke (top dead center). Physically, at this point in the stroke, there is a space between the piston face and the head. The space results in a trapped volume and is called clearance volume.

Detailed explanation-2: -Definition of ‘clearance volume’ The clearance volume is the volume remaining above the piston of an engine when it reaches top dead center. The maximum compression pressure in the piston is controlled by the clearance volume. When the piston is at top dead center, the clearance volume is at a minimum.

Detailed explanation-3: -(a) The “Displacement volume” is the volume displaced by the piston as it moves between top dead center (tdc) and bottom dead center (bdc). This volume determines the capacity of the engine. (b) The “Clearance volume” of the engine is the volume between the cylinder head and the piston when the piston is at tdc.

Detailed explanation-4: -Quench is the distance between the piston and cylinder head when the piston is at top dead center (TDC). Ultimately it can be thought of as piston to head clearance.

Detailed explanation-5: -This is the total volume remaining in the cylinder at the end of the piston stroke. This consists of the volume between the end of the piston and the cylinder head, in the valve ports and the volume in the suction valve guards and the discharge valve seats [26].