Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.

Two shafts A and B are made of the same material. The diameter of shaf

1.	Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.
A.	twice
B.	four times
C.	eight times
D.	sixteen times
Answer» D. sixteen times