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b) small and portable:
c) tall and light;
d) light and portable.

21. What does the Rotating equipment perform?
a) rotates the mast;
b) turns the bit;
c) turns the drawworks;
d) rotates the crown block.

22. 3 ways of rotating the bit include: rotary table, top-drive system and:
a) the hydraulic motor;
b) rotating crown block;
c) down hole motor;
d) up hole motor.

23. What are the main 5 parts of the rotary-table system?
a) (1) a rotary table with a turntable, (2) a crown block, (3) a kelly drive bushing,
(4) a kelly, and (5) a swivel;
b) (1) a rotary table with a turntable, (2) a master bushing, (3) a drawworks
bushing, (4) a kelly, and (5) a swivel;
c) (1) a rotary table with a turntable, (2) a master bushing, (3) a kelly drive
bushing, (4) a kelly, and (5) a dead line anchor;
d) (1) a rotary table with a turntable, (2) a master bushing, (3) a kelly drive
bushing, (4) a kelly, and (5) a swivel.

24. What does the turntable produce?
a) the momentum created by the load being raised or lowered;
b) the turning motion that machinery transfers to the pipe and bit;
c) the turning motion that machinery transfers to the drawworks;
d) the momentum created by the machinery;

25. What is a bushing?
a) the fitting that goes inside an opening in a machine;
b) the heat generated by the reeling of the drum;
c) the power swivel that rotates the drill string and bit;
d) the motor that strikes a spiral shaft.

26. What are the components of drill string?
a) drill pipe and special, heavy-walled pipe called drill collars;
b) a kelly and a bit;
c) a bit and a crown block;
d) drill pipe and special pipe called kelly.

27. Drill collars are heavy because:

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