About Chain Drives

Chain drives are a common choice for many industrial and commercial applications. They are durable, efficient, and can handle large loads. But how do you know which chain drive is right for your specific application?

There are a few things to consider when choosing a chain drive. First, you need to determine the type of chain drive that best suits your needs. There are two main types of chain drives: roller chain drives and V-belt drives.

Roller chain drives are more common in industrial applications. V-belt drives are more common in commercial applications. They are less durable but more efficient. Second, you need to determine the size of chain drive you need. Chain drives come in a variety of sizes, from small to large. The size you need will depend on the load you are trying to move and the amount of space you have to work with.

Wrapping Up

Third, you need to determine the chain drive's speed. chain drives can operate at a variety of speeds, from slow to fast. The speed you need will depend on the application you are using it for.

Following are some of the multiple choice questions on the Chain Drives with answers that will help the students in developing their knowledge.

Chain Drives MCQ

1. The three basic components of a chain drive are?

  • Chain, roller, and pin
  • Chain, driver sprocket, and driven sprocket
  • Chain, master link, and roller
  • Pins, rollers, and bushings

2. It is a way of transmitting mechanical power from one place to another which is common in motorcycles and bicycles.

  • Gear
  • Cam Follower
  • Belt
  • Chain Drive

3. Which of the following is NOT a type of shaft-to-adjacent-shaft power transmission?

  • Belt drive
  • Chain drive
  • Clutch
  • Gears

4. Power is transferred between an electric motor and a pump with a chain drive. Calculate the required number of driven sprocket teeth and chain length if the motor and pump are 20 inches apart, and the driven shaft must rotate at 1800 r/min. The driving sprocket is installed directly on the motor shaft and has 30 teeth. The plate on the motor indicates a nominal speed of 1000 r/min. The chain has a pitch of 0.5 inches.

  • The driven sprocket has 17 teeth and the chain length is 51.3 inches
  • The driven sprocket has 54 teeth and the chain length is 57.7 inches
  • The driven sprocket has 17 teeth and the chain length is 57.7 inches
  • The driven sprocket has 54 teeth and the chain length is 51.3 inches

5. Which of the mechanical drive has higher power transmission efficiency

  • Belt drives
  • Chain drives

6. A chain should be replaced when its length becomes _______ longer than the original

  • 20 mm
  • 40 mm
  • 3%
  • 10%

7. Which of the following is NOT a material commonly used for making keys?

  • Cold rolled steel
  • Zinc-plated cold rolled steel
  • Copper
  • High carbon steel

8. Which of the devices below is used for measuring the speed of rotation of a shaft?

  • Dial indicator
  • Shims
  • Spirit level
  • Tachometer

9. Which of the following materials is most commonly used for making shafts suitable for the food processing industry equipment?

  • Cold steel
  • Chrome plated steel
  • Hardened steel
  • Stainless steel

10. What is the purpose of the lockout / tag out system?

  • To allow others to operate the system at any time
  • To avoid powering up the equipment while working on it
  • To make it easy to recognize who is in charge of the machine
  • To give the operator enough time to read the operating instructions

11. What is the type of key tolerance if you were able to push the key into its key seat with your thumb?

  • Free
  • Normal
  • Close
  • Interference

12. Which type of key is used for repair and rescue of key seats that have become larger due to wear?

  • Square
  • Rectangular
  • Gib-head key
  • Offset key

13. Which of the tools below is used to measure the level of a surface and parallelism of a surface with the ground?

  • Bed plate
  • Dial indicator
  • Shims
  • Spirit level

14. Which of the following is NOT a standard way for mounting a driving motor to a bedplate?

  • Foot mount
  • Back plate mount
  • C-face mount
  • Adjustable mount

15. What is the component used to protect the bedplate from damage when mounting a motor?

  • Flat washer
  • Lock washer
  • Bolt head
  • Shim

16. What kind of energy transformation happens inside an electric motor?

  • Electrical to mechanical
  • Mechanical to electrical
  • Electrical to chemical
  • Mechanical to chemical

17. Compared to chain drives, belt drives

  • require lubrication
  • are quieter
  • can transmit higher torques levels
  • can be dismounted without dismantling other machine parts

18. The sag on a chain is measured with

  • a photo reflective tachometer
  • a dial caliper
  • a tape rule
  • a rule

19. Chain drives should receive maintenance

  • once a year
  • every 500 hours of operation
  • only when a problem occurs
  • every 1000 hours of operation

20. If the driving sprocket of a chain drive has 30 teeth and the driven sprocket has 20 teeth, the driven sprocket rotates

  • 0.67 times faster than the driving sprocket
  • 1.5 times as fast as the driving sprocket
  • slower than the driving sprocket
  • at the same speed as the driving sprocket

21. This component is used to connect the two ends of a chain with an even number of links

  • roller
  • connecting link
  • chain extension
  • chain locker

22. It is desirable that the chain wrap around the smaller sprockets be

  • exactly 60 degrees
  • less than 90 degrees
  • approximately 120 degrees
  • any amount of chain wrap is acceptable

23. The tool used to break a chain is called a

  • chain breaker
  • chain puller
  • chain link
  • no tool is available

24. A number 40-3 chain has the following characteristics:

  • a pitch of 0.5 inches and three strands
  • a pitch of 4 inches and three strands
  • a pitch of 0.5 inches and is of the heavy duty type
  • a pitch of 4 inches and is of the heavy duty type

25. This type of chain is suited for light weight, low speed applications.

  • roller chain
  • silent chain
  • rollerless chain
  • heavy duty chain

26. What is the chain ratio if the drive chain has 12 teeth and the driven chain has 60?

  • 1:5
  • 7:1
  • 1:7
  • 5:1

27. Application of oil with a brush to lubricate the chain is

  • Oil bath lubrication
  • Oil stream lubrication
  • Manual lubrication
  • None of these

28. Which type of chain has greater strength

  • Square link chain
  • Stud link chain
  • Oval link chain
  • All of above

29. Chain drives required frequent lubrication

  • Yes
  • No

30. In a chain drive, chains are passed over

  • Circular disc
  • Pulley
  • Sprockets
  • All of above

31. A bicycle contains 60 tooth in the driving sprocket and 40 tooth in the driven, the sprocket ratio will be

  • 3/2
  • 2/3
  • 1
  • None of these

32. If the driven sprocket rotates by 3 rotation upon giving one rotation to the driving sprocket, sprocket ratio will be

  • 1
  • 3
  • 1/3
  • Not defined

33. Which chain is most suitable for noiseless running

  • Block Chain
  • Bush roller chain
  • Silent chain
  • None of these

34. Chain drives required precise alignment compared to belt drives

  • True
  • False

35. Chain drives can be used for

  • Short drives
  • Long drives
  • Both short and long drives
  • None of the above

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