21.
Spiral gears are used only if the axes of two shafts are non-intersecting, non-parallel and ............
A
parallel
B
non-perpendicular
C
none of the above
D
perpendicular
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Spiral gears are used only if the axes of two shafts are non-intersecting, non-parallel and ............
parallel
non-perpendicular
none of the above
perpendicular
Intersecting shafts are connected by
Friction gears
Cams
None of the above
Bevel gears
In worm and wheel, the shaft axes are at
45 degrees
180 degrees
270 degrees
90 degrees
In which of the following processes, tooth ends are made thinner?
Crowing of gear tooth
Hunting of gear tooth
None of the above
Backlash effect
In gears, arc of contact is
Arc of approach – Arc of recess
Arc of approach / Arc of recess
Arc of approach x Arc of recess
Arc of approach + Arc of recess
In force analysis of spur gears which component of force assists the rotation on driven gear?
Radial component
Tangential component
All of the above
Axial component
Gear teeth formed on a flat surface are called this
Rack
Spur
Teeth
Pinion
Gear teeth formed on a flat surface are called
Pitch
Spur
Hub
Rack
Gear shaping is related to
Form tooth process
Hob
Generating
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