Page 85 - 6200

a) winch
b) drill ships
c) windlass
d) barges

8. The first MODU was …
a) not portable
b) a semisubmersible
c) a submersible
d) no correct variant

9. The first MODU drilled its initial well in …
a) 1943
b) 1955
c) 1949
d) no correct variant

10. In their heyday in the early 1960s, the biggest bottle-type submersibles drilled in … water
depths
a) 55-metre
b) 33-metre
c) 45-metre
d) no correct variant

11. A special type of submersible rig is …
a) an ice submersible
b) an arctic submersible
c) a cold submersible
d) no correct variant

12. A jackup's legs can be … columns
a) oval
b) squre
c) cylindrical
d) no correct variant

13. Floating offshore drilling rigs include semisubmersibles and …
a) drill ships
b) submersible
c) jackup
d) no correct variant

14. Most semisubmersible rigs have two or more … on which the rig floats.
a) masts
b) floors
c) pontoons
d) no correct variant

15.What is a long, relatively narrow, and hollow steel float with a rectangular or round cross
section called?
a) pontoon
b) jackup

61