Gears MCQ Questions and Answers for Practice

1. Gear shaping is related to

1. Form tooth process
2. Hob
3. Generating
4. Template

2. Gear teeth formed on a flat surface are called

1. Pitch
2. Spur
3. Hub
4. Rack

3. Gear teeth formed on a flat surface are called this

1. Rack
2. Spur
3. Teeth
4. Pinion

4. In force analysis of spur gears which component of force assists the rotation on driven gear?

1. Radial component
2. Tangential component
3. All of the above
4. Axial component

5. In gears, arc of contact is

1. Arc of approach – Arc of recess
2. Arc of approach / Arc of recess
3. Arc of approach x Arc of recess
4. Arc of approach + Arc of recess

6. In which of the following processes, tooth ends are made thinner?

1. Crowing of gear tooth
2. Hunting of gear tooth
3. None of the above
4. Backlash effect

7. In worm and wheel, the shaft axes are at

1. 45 degrees
2. 180 degrees
3. 270 degrees
4. 90 degrees

8. Intersecting shafts are connected by

1. Friction gears
2. Cams
3. None of the above
4. Bevel gears

9. Spiral gears are used only if the axes of two shafts are non-intersecting, non-parallel and ............

1. parallel
2. non-perpendicular
3. none of the above
4. perpendicular

10. Spur gear design normally begins with selecting this

1. Tooth size
2. Gear size
3. Pitch diameter
4. Rack size

11. The clearance in toothed gear is kept as

1. 1.57 module
2. 1.60 module
3. 1.67 module
4. 1.50 module

12. The gear used to convert rotary motion into translating motion is

1. Crown gear
2. Rack and pinion
3. Spiral Bevel gear
4. Worm and wheel

13. The gears are used to connect two parallel shafts except

1. Helical gear
2. Double helical gears
3. Bevel gears
4. Spur gear

14. The gears used to connect non-parallel and non-intersecting shafts is

1. Spiral bevel gears
2. Spiral gears
3. Double helical gears
4. Straight bevel gears

15. The minimum number of teeth on pinion to avoid interference in rack and pinion is

1. 18
2. 21
3. 24
4. 15