Oilers/Plant Tenders (HHC) Civil Service Practice Exam

In which type of engine is the slide valve gear typically used to control steam flow?

1. Tilting engines

2. Reciprocating engines

3. Rotary engines

4. Jet engines

The correct answer is: Reciprocating engines

The slide valve gear is commonly associated with reciprocating engines, which utilize piston movements to convert steam pressure into mechanical work. In these engines, steam enters the cylinder and is controlled by the slide valve, which opens and closes to regulate the flow of steam. This mechanism ensures that steam is directed into the cylinder at the appropriate time in the cycle, allowing for efficient energy conversion as the pistons move back and forth. Reciprocating engines are characterized by their use of pistons that move in a linear motion, and the operation of the slide valve is crucial for synchronizing the steam admission and exhaust processes during each cycle, thus contributing to the engine's overall performance and efficiency.