The maximum value of the pressure angle in case of cam is kept as

The difference between CAD and CAM is that CAD software is directed at product design while CAM software is:

A

concerned with production and control of tool design

B

concerned with management programs

C

designed for communications

D

specifically for PC-board design

E

None of the above

The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where $$\omega $$ = Angular velocity of the cam shaft)

A

$$\omega \left( {{{\text{r}}_1}{{\text{r}}_2}} \right)\sin \theta $$

B

$$\omega \left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)\sin \theta \sec 2\theta $$

C

$$\omega \left( {{{\text{r}}_1}{{\text{r}}_2}} \right)\cos \theta $$

D

$$\omega \left( {{{\text{r}}_1} + {{\text{r}}_2}} \right)\cos \theta \,{\text{cosec2}}\theta $$

The period during which the cam follower remains at rest, when cam moves, is known as

A

Constant period

B

Fixed period

C

Dwell period

D

Idle period

The pressure angle of a cam is the angle between the direction of the follower motion and a normal to the

A

Pitch circle

B

Base circle

C

Pitch curve

D

Prime circle

Angle of ascent of cam is defined as the angle

A

during which the follower returns to its initial position

B

of rotation of the cam for a definite displacement of the follower

C

through which the cam rotates during the period in which the follower remains in highest position

D

moved by the cam from the instant the follower begins to rise, till it reaches its highest position

Angle of action of cam is defined as the angle

A

of rotation of the cam for a definite displacement of the follower

B

through which the cam rotates during the period in which the follower remains in the highest position

C

moved by the cam from the instant the follower begins to rise, till it reaches its highest position

D

moved by the cam from beginning of ascent to the termination of descent

Cam angle is defined as the angle

A

during which the follower returns to its initial position

B

of rotation of the cam for a definite displacement of the follower

C

through which, the cam rotates during the period in which the follower remains in the highest position

D

moved by the cam from the instant the follower begins to rise, till it reaches its highest position

Angle of descent of cam is defined as the angle

A

During which the follower returns to its initial position

B

Of rotation of the cam for a definite displacement of the follower

C

Through which the cam rotates during the period in which the follower remains in the highest position

D

Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

Angle of dwell of cam is defined as the angle

A

During which the follower returns to its initial position

B

Of rotation of the cam for definite displacement of the follower

C

Through which the cam rotates during the period in which the follower remains in the highest position

D

Moved by the cam from the instant the follower begins to rise, till it reaches its highest position

The pressure angle of a cam depends upon

A

offset between centre lines of cam and follower

B

lift of follower

C

angle of ascent

D

all of the mentioned

The maximum value of the pressure angle in case of cam is kept as

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