Gears MCQs Quiz Multiple Choice Questions & Answers

1. Gear shaping is related to

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

2. Gear teeth formed on a flat surface are called

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

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

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

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

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

5. In gears, arc of contact is

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

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

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

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

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

8. Intersecting shafts are connected by

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

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

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

10. Spur gear design normally begins with selecting this

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

11. The clearance in toothed gear is kept as

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

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

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

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

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

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

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

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

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

16. The module of a gear is given by ............ in terms of d diameter of pitch circle, and t number of teeth

1. d/2t
2. d/3t
3. d/t
4. 2d/t

17. The most common geometric form used in gears today is this

1. Base circle
2. Spur circle
3. Involute profile
4. Convolute profie

18. The point of contact of two pitch circles of mating gears is called

1. Module
2. Contact point
3. Pressure point
4. Pitch point

19. These gears are used to transmit power between nonintersecting shafts that are at right angles to each other

1. Spur gears
2. Bevel gears
3. Racks
4. Worm gears

20. These gears transmit power between shafts whose axes intersect at any angle

1. Bevel gears
2. Racks
3. Worm gears
4. Spur gears

21. To connect two intersecting shafts we use

1. Worm and wheel
2. Bevel gears
3. Spur gear
4. Helical gear

22. What are the advantages of smaller pressure angles?

1. High contact ratio
2. All of the above
3. High radial force
4. High separating force

23. Which gear is used if the axes of two shafts are neither intersecting nor parallel?

1. Both a and b
2. None of the above
3. Hypoid gears
4. Worm gears

24. Which of the following is a form of teeth?

1. Helical
2. All of the above
3. Cycloidal
4. Spherical

25. Which of the following is a gear finishing operation

1. Shaping
2. Shaping and brushing
3. Milling
4. Hobbing

26. Which of the following methods produces gear by generating process

1. Punching
2. Milling
3. Hobbing
4. Casting

27. Which of the following operation is different from the rest

1. Punching
2. Coining
3. Rivetting
4. Embossing

28. Which of the following pressure angle (in degrees) is commonly used for gears?

1. 25
2. 30
3. 15
4. 20

29. Which of the following type of gear has inclined teeth?

1. Spiral gear
2. All of the above
3. Spur gear
4. Helical gear