Question

89. One effect of detonation is
(A) delay in ignition
(B) interruption in lubrication
(C) loss of power
(D) deterioration in the quality of air-fuel mixture​

Answer 1

(c) loss of power

One effect of detonation is loss of power.

Explanation:

When detonation occurs, the fuel charge ignites quickly in an uncontrolled explosion,causing a pounding force or hammering force on the piston rather than a steady push.

Moderate to severe detonation could be noticed as engine roughness, vibration or loss of power and eventually engine damage.

Loss of power makes some damage in engine part.

other options are not to make any major effect in detonation compared to option (c)

So,loss of power is main effect of detonation.