Speed reduction in a gear box is achieved using a worm and worm wheel. – McqOptions

MCQOPTIONS

1.	Speed reduction in a gear box is achieved using a worm and worm wheel. The worm wheel has 30 teeth and a pitch diameter of 210 mm. If the pressure angle of the worm is 20o, what is the axial pitch of the worm?
A.	7 mm
B.	22 mm
C.	14 mm
D.	63 mm
Answer» C. 14 mm

Discussion

No Comment Found

Related MCQs

A pair of helical gears has fewer teeth in contact as compared to an equivalent pair of spur gears.
In the case of spur gears, the mating teeth execute pure rolling motion with respect to each other from the commencement of engagement to its termination.
Gears with involute tooth profile transmit constant velocity ratios between shafts connected by them.
Spiral bevel gears designed to be used with an offset in their shafts are called ‘hypoid gears’
Speed reduction in a gear box is achieved using a worm and worm wheel. The worm wheel has 30 teeth and a pitch diameter of 210 mm. If the pressure angle of the worm is 20o, what is the axial pitch of the worm?
A_PAIR_OF_HELICAL_GEARS_HAS_FEWER_TEETH_IN_CONTACT_AS_COMPARED_TO_AN_EQUIVALENT_PAIR_OF_SPUR_GEARS.?$
In the case of spur gears, the mating teeth execute pure rolling motion with respect to each other from the commencement of engagement to its termination?
Gears with involute tooth profile transmit constant velocity ratios between shafts connected by them?
Spiral bevel gears designed to be used with an offset in their shafts are called ‚Äö√Ñ√∂‚àö√ë‚àö‚â§hypoid gears‚Äö√Ñ√∂‚àö√ë‚àö¬•$
A pair of gears forms a rolling pair.