Engine: General Subjects

1. A The actuator closing spring on a relief valve is in a compressed state whereas the actuator closing spring on a safety valve acts in tension.
2. B Relief valves are capable of being gagged whereas safety valves are not.
3. C A relief valve gradually opens as pressure increases above set point pressure whereas a safety valve fully opens at the set point pressure.
4. D The blow down of a relief valve is greater than the blow down of a safety valve.

Tip: press A-D to answer