Question 317Deck General70% to pass
Which statement is TRUE regarding the operation of a crane?
AI Explanation
The correct answer is C) The crane jib is raised and lowered by the luffing winch.
The crane jib, which is the arm of the crane, is raised and lowered by the luffing winch. This is in accordance with standard crane operation procedures and regulations. The hoisting winch is used to raise and lower the cargo block, while the jibing winch is not a standard crane component and is not used to operate the crane jib.
The other answer choices are incorrect because A) the hoisting winch raises and lowers the cargo block, not the crane jib, B) the cargo block is raised and lowered by the hoisting winch, not the luffing winch, and D) there is no "jibing winch" on a crane.
Related Questions
#315 Which of the following statement(s) is/are TRUE regarding twin pedestal cranes? #316 Using the available references, if the dry bulb temperature is 80°F (27°C) and the wet bulb temperature is 70°F (21°C), what is the relative humidity in a cargo hold? #318 You are loading epichlorohydrin onto your barge. According to the Chemical Data Guide, you could expect to detect a leak by smell if the concentration in air was at least _______________. #319 Maritime Administration personnel may be allowed in the pilothouse upon the responsibility of the _______________.#320 Which action(s) is/are included in crane operations?