Vegetations are most common on
A: the tricuspid valves
B: the pulmonary valves
C: the mitral and aortic valves
D: the right atrial appendage
A: the tricuspid valves
B: the pulmonary valves
C: the mitral and aortic valves
D: the right atrial appendage
举一反三
- Overload protection on hydraulic system is provided by the use of （）. A: stop valves B: pressure relief valves C: balance valves D: regulating speed valve
- The period when both inlet valves and exhaust valves are open is referred to as （）.
- The starting air system usually has （） to prevent starting if anything is not in order. A: stop valves B: interlocks C: non-return valves D: air vent
- The purpose of the safety relief valves installed on an auxiliary boiler is to （）.
- What is the purpose of the intake/exhaust valves in a diesel engine? （）