answersLogoWhite

0

A nonunion purchase derrick is a type of crane used in construction and heavy lifting operations that operates without the involvement of unionized labor. This system is typically utilized by companies seeking to minimize labor costs or avoid union regulations. Nonunion purchase derricks can vary in design and capacity, but they generally assist in hoisting materials and equipment at construction sites. Their use can sometimes be controversial, as it may lead to labor disputes or concerns over worker rights and safety standards.

User Avatar

AnswerBot

2mo ago

What else can I help you with?

Continue Learning about Other Engineering

What is another name for a digger derrick?

A digger normally used to dig earth for many purposes. Such as for mining and industrial purposes.A digger derrick is normally is known as digger truck.


Is an oil rig and oil derrick the same?

Yes and No The "derrick" is the drilling tower which is part of the complete oil platform (which could be moored at sea and have crew quarters etc) which is the "oil rig"


Why Two spurs and Two pinions are provided in Double Purchase Crab Machine?

In double Purchase crab machine, If it is required to increase V.R of the machine, What minimum changes are to be made?


What is a tower that holds drilling equipment?

A tower that holds drilling equipment is commonly referred to as a "drilling rig" or "derrick." These structures are used in oil and gas exploration to support the drilling apparatus, including the drill string and other necessary tools. The rig provides stability and height for the drilling process, allowing operators to penetrate deep into the earth to access resources. Drilling rigs can be found on land or offshore, depending on the location of the resources being extracted.


What are tongs used for on an oil rig?

making and or serving dinner, just like anywhere else That was a pretty inane answer. Tongs are the very large tools used on a derrick to tighten and loosen the drill pipes and collars etc . They are usually manipulated by the roustabouts during pipe changes or additions. Imagine a pair of grips that are at least 5 feet long and are tensioned by a winch operated by the driller on an oil rig "floor" . Most times a chain is used to do the initial tightening of the pipe joint but Tongs are needed for the final pinch up torques need to keep the keep the joint toght.