Related Questions

In a gear having involute teeth, the normal to the involute is a tangent to the
A pitch circle
B base circle
C addendum circle
D dedendum circle
A certain dentist specializes in implanting gold and silver teeth in his patients mouths .He charges $ 650 for a gold tooth an $ 325. for a silver tooth. If his told fees for implanting gold and silver teeth last week were $ 15, 925 in total and he implanted five more gold teeth that silver teeth, how many teeth in total did he implant over the week?
A 33
B 32
C 31
D 34
If T is the actual number of teeth on a helical gear and $$\varphi $$ is the helix angle for the teeth, then formative number of teeth is written as
A $${\text{T}}{\sec ^3}\varphi $$
B $${\text{T}}{\sec ^2}\varphi $$
C $$\frac{{\text{T}}}{{{{\sec }^3}\varphi }}$$
D $${\text{Tcosec}}\varphi $$
For a bevel gear having the pitch angle $$\theta $$, the ratio of formative number of teeth (TE) to actual number of teeth (T) is
A $$\frac{1}{{\sin \theta }}$$
B $$\frac{1}{{\cos \theta }}$$
C $$\frac{1}{{\tan \theta }}$$
D $$\sin \theta \cos \theta $$
If the centre distance of the mating gears having involute teeth is increased, then the pressure angle
A increases
B decreases
C remains unchanged
D none of the mentioned
If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio
A Increases
B Decreases
C Remains unchanged
D None of these
In which of the following type of gear train the first gear and the last gear are co-axial.
A Simple gear train
B Compound gear train
C Reverted gear train
D None of the mentioned
In helical gears, the distance between similar faces of adjacent teeth along a helix on the pitch cylinders normal to the teeth, is called
A normal pitch
B axial pitch
C diametral pitch
D module
The length of a meander is the distance along the river between the tangent point of one curve to the tangent point of
A Reverse curve
B Next curve of the same order
C Reverse curve plus the width of the river
D None of these
In full depth involute system, the smallest number of teeth in a pinion which meshes with rack without interference is
A 12
B 16
C 25
D 32

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