Related Questions

The size of a cam depends upon
A base circle
B pitch circle
C prime circle
D pitch curve
The size of cam depends upon
A Base circle
B Pitch circle
C Prime circle
D Pitch curve
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 depends upon
A offset between centre lines of cam and follower
B lift of follower
C angle of ascent
D all of the mentioned
In a circular arc cam with roller follower, the acceleration in any position of the lift will depend only upon
A Total lift, total angle of lift, minimum radius of cam and cam speed
B Radius of circular arc, cam speed, location of centre of circular arc and roller diameter
C Mass of cam follower linkage, spring stiffness and cam speed
D Total lift, centre of gravity of the cam and cam speed
The size of abrasive grain required in a grinding wheel depends upon the
A Amount of material to be removed
B Hardness of material being ground
C Finish desired
D All of these
Size of the combustion chamber of a furnace depends upon the
A Heat release rate of the fuel
B Preheat temperature of fuel & air
C Method of mixing the fuel & air
D All of the above
Crystal size in a continuous crystalliser depends upon the
A Rate of heat transfer
B Degree of turbulence
C Degree of supersaturation
D All of the above

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