Which of the following types of belts can be used to transmit motion between two wheels? Select the single best answer:
A. a V-type belt only
B. a timing belt only
C. a V-type, a multi-V-type, and a timing belt
D. Belts are used for other purposes than motion transmission.
E. a multi-V-type belt only
The correct answer and explanation is :
The correct answer is C. a V-type, a multi-V-type, and a timing belt.
Explanation:
Belts are commonly used to transmit motion between two wheels or pulleys, and there are several types of belts designed specifically for this purpose. Let’s break down each of the options:
- V-type belt:
A V-type belt is one of the most widely used belts for motion transmission. It has a V-shaped cross-section, which allows it to fit snugly into a corresponding groove on the pulley. This shape increases the contact area between the belt and the pulley, providing a greater grip and reducing the chance of slippage. V-type belts are commonly used in many mechanical systems like automotive engines, HVAC systems, and industrial machinery. - Multi-V-type belt:
A multi-V-type belt, also known as a serpentine belt, is essentially a series of V-shaped grooves that are used in parallel, allowing the belt to handle higher loads and provide more power transmission than a single V-belt. This type of belt is typically used in applications where space constraints exist or where multiple pulleys are being driven by a single belt. It’s commonly used in automotive systems where multiple components (like alternators, power steering pumps, etc.) need to be driven by one belt. - Timing belt:
A timing belt has teeth along its inner surface, which interlock with corresponding grooves on the pulleys. This belt is designed for precise synchronization of rotating shafts. Timing belts are typically used in applications where accurate timing is required, such as in engine timing systems, conveyor belts, or machines requiring precise motion control. The teeth prevent slippage, ensuring the synchronization between gears or pulleys.
Conclusion:
All three of these belt types—V-type, multi-V-type, and timing belts—are used to transmit motion between wheels or pulleys. Therefore, the best answer is C, as it includes all the appropriate belt types for motion transmission.