The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)

A

$${\text{p}} = {\text{D}}\sin \frac{{{{90}^ \circ }}}{{\text{T}}}$$

B

$${\text{p}} = {\text{D}}\sin \frac{{{{120}^ \circ }}}{{\text{T}}}$$

C

$${\text{p}} = {\text{D}}\sin \frac{{{{180}^ \circ }}}{{\text{T}}}$$

D

$${\text{p}} = {\text{D}}\sin \frac{{{{360}^ \circ }}}{{\text{T}}}$$

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

In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be

A

15

B

17

C

21

D

25

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

$$\sin \theta \cos \theta $$

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

Which of the following property sets pitch or tone (high or low) for the synthesized speech when reading an element; the pitch may be specified absolutely or relative to the normal pitch for the voice-family used to read the text?

A

voice-check

B

voice-format

C

voice-pitch

D

voice-volume

Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is

A

Nylon-66

B

Teflon

C

Polyester

D

Bakelite

The ratio of the number of teeth to the pitch circle diameter in millimeters, is called

A

circular pitch

B

diametral pitch

C

module

D

none of the mentioned

The ratio of pitch circle diameter in millimeters to the number of teeth, is called

A

Circular pitch

B

Diametral pitch

C

Module

D

None of these

The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.

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