Which of the following gears is conical in shape?
A. Worm gear
B. Helical gear
C. Spur gear
D. Bevel gear
Question 2
The V-belt designation 3V-480 means of an inch in length.
A. narrow groove V-belt, 3/8 inch wide, and 480 tenths
B. narrow groove V-belt, 3/8 inch wide, and 480 hundredths
C. classical V-belt, 3/8 inch wide, and 480 tenths
D. none of the above