Question

Chattering or rumbling of a safety valve may be due to:

a) steam too wet
b) broken spring
c) dirt or scale on a valve seat or disc
d) valve coming loose from boiler

Answer 1

The chattering or rumbling of a safety valve may be due to steam too wet, a broken spring, dirt or scale on a valve seat or disc, or the valve coming loose from the boiler.

Step-by-step explanation:

The chattering or rumbling of a safety valve may be due to several factors. These include:

1. Steam too wet: If the steam contains excessive moisture, it can cause the safety valve to chattering or rumble.
2. Broken spring: A broken or weakened spring in the safety valve can lead to abnormal noises.
3. Dirt or scale on a valve seat or disc: If there is dirt or scale buildup on the valve seat or disc, it can cause the safety valve to make noise.
4. Valve coming loose from boiler: If the safety valve becomes loose from the boiler, it can result in chattering or rumbling noises.