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Question #508

Travel directions on a radio-controlled crane should be marked:

Kierunki jazdy w suwnicy sterowanej radiowo powinny być oznaczone:

a
on the crane structure where the operator can see them and on the radio remote control

na konstrukcji suwnicy w miejscu widocznym dla operatora i na pilocie sterowania radiowego

Correct answer

b
inside the crane cab

w kabinie suwnicy

c
before the entrance to the hall where the crane operates

przed wejściem na halę, w której pracuje suwnica

d
on every visible runway support column

na każdym widocznym słupie podporowym torowiska

Why?

Travel direction markings (kierunki jazdy) on the crane and remote clearly match the buttons to crane movements. The operator can change position, so their left does not always correspond to the same travel direction. Markings only inside the cab are insufficient when operating from the workshop floor.

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