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Question #341

Hydraulic safety components include:

Hydrauliczne elementy bezpieczeństwa to:

a
a pressure relief valve and throttle-check valves

zawór przelewowy, zawory zwrotno - dławiące

Correct answer

b
a pump, a directional control valve and a telescoping cylinder

pompa, rozdzielacz, siłownik teleskopowania

c
a slew motor, a zero-position interlock and a ball valve

silnik obrotu, blokada zerowa, zawór kulowy

d
a directional control valve, ball valves and buffers

rozdzielacz, zawory kulowe, odboje

Why?

A pressure relief valve (zawór przelewowy) limits pressure, while throttle-check valves (zawory zwrotno-dławiące) restrict flow in one direction and help control movement speed. A pump and cylinder power the mechanisms, so a set containing them is not a set of safety components.

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