Question 109Motor Plants - QMED

The correct answer is B) loss of engine power. A clogged dry-type exhaust silencer can restrict the flow of exhaust gases, leading to an increase in back pressure in the engine's exhaust system. This increased back pressure will cause a loss of engine power, as the engine has to work harder to expel the exhaust gases. The other options are incorrect - a clogged silencer would not lead to low exhaust temperature (A), burned intake valves (C), or engine racing (D).