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In involute gears, the pressure angle is

Q.  
In involute gears, the pressure angle is


Answer & Explanation

In involute gears, the pressure angle is always constant, which is the angle between center line and tangent to base circles

Thus correct option is: C.

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More Questions Theory of Machines:

Q.  
Which one of the following is true for involute gears?

A. Interference is inherently absent

B. Variation in center distance of shafts increases radial force

C. A convex flank is always in contact with concave flank

D. Pressure angle is constant throughout the teeth engagement


Answer & Explanation

Q.  
An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

A. Tip of the gear and flank of pinion

B. Tip of the pinion and flank of gear

C. Flanks of both gear and pinion

D. Tips of both gear and pinion


Answer & Explanation

Q.  
The work surface above the pitch surface of the gear tooth is termed as

A. Addendum

B. Dedendum

C. Flank

D. Face


Answer & Explanation

Q.  
In a simple gear train, if the number of idler gears is odd, then the direction of motion of driven gear will

A. Be same as that of the driving gear

B. Be opposite to that of the driving gear

C. Depend upon the number of teeth on the driving gear

D. Depend upon the total number of teeth on all gears of the train


Answer & Explanation
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