Final answer:
The volume before dead center (V_BDC) and volume at top dead center (V_TDC) of a cylinder in an internal combustion engine, assuming zero pump work and no internal/external exhaust residual, are 1.8 m³ and 0.8 m³ respectively.
Step-by-step explanation:
The question refers to the volumes before dead center (VBDC) and at top dead center (VTDC) of a cylinder in an internal combustion engine. Assuming zero pump work and no internal/external exhaust residual, the answer is option d) 1.8 m³, 0.8 m³.
These volumes represent the positions of the piston within the cylinder during the engine cycle. VBDC is the volume when the piston is at its lowest point, and VTDC is the volume when the piston is at its highest point. The given options d) 1.8 m³, 0.8 m³ correspond to these volumes.