Which inefficiency occurs due to exhaust throttling in diesel engines?

💡 Explanation

Reduced turbine work arises because exhaust backpressure from throttling decreases the pressure differential across the turbine, reducing its power extraction via the Rankine cycle; therefore, option A is valid, rather than elevated temperatures or fuel changes.

• Which outcome increases as fluid enters established turbulence?
• Which phenomenon causes signal degradation as electromagnetic wave propagates through a lossy dielectric material?
• Which consequence results when excessive mass accumulates at galactic centers?
• Which outcome occurs when the concentration of a reactant in a continuously stirred tank reactor (CSTR) oscillating reaction approaches zero?
• Which outcome signifies flow regime transition according Reynolds number increase within porous media?
• Which consequence results when the Thiele modulus exceeds unity in a catalyst pellet?