Question #680
The component that generates pressure in a crane's hydraulic system is:
Elementem wytwarzającym ciśnienie w układzie hydraulicznym żurawia jest:
a
a hydraulic motor
silnik hydrauliczny
b
a hydraulic pump
pompa hydrauliczna
Correct answer
c
a compressor (kompresor)
kompresor
d
a compressor (sprężarka)
sprężarka
Why?
The hydraulic pump (pompa hydrauliczna) supplies oil flow, and pressure develops against resistance caused by the load. A hydraulic motor (silnik hydrauliczny) receives energy from the oil and converts it into rotation. The Polish words kompresor and sprężarka both refer to a device for compressing gas, not for supplying this system with oil.