What mechanical factors determine the horse power transmitted by a belt drive_________________?
Show answer Hide answer
Answer: E. all of the above
Explanation
The power transmitted by a belt drive depends on belt tensions and pulley speed. Tight side tension and slack side tension determine the net effective pulling force. Pulley radius and rotational speed combine to calculate the total delivered mechanical power. Power in rotating systems equals the product of transmitted torque and angular velocity. Effective tension in a belt is the difference between tight side and slack side forces. Centrifugal tension at high speeds can reduce the actual power transmission capacity.
Mechanical engineers calculate belt parameters to ensure machinery operates without slipping. Industrial fans and compressors require properly tensioned belts to avoid energy losses. Optimizing drive geometry extends belt lifespan and maintains high system efficiency. Option A is incomplete because tight side tension alone does not determine total power. Option B is insufficient since slack tension must be compared against tight side tension. Option C focuses only on geometry without accounting for tension and rotational speed.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. What is the primary advantage of a piston valve over a traditional D-slide valve____________________?
Show answer Hide answer
Answer: C. both wear and power absorbed are low
Piston valves utilize balanced cylindrical plugs that eliminate the high friction forces experienced by flat slide valves. This balanced pressure design significantly reduces both mechanical wear on sealing surfaces and...
Q2. What is the directional orientation of tangential acceleration_________________?
Show answer Hide answer
Answer: C. may be any one of these
Tangential acceleration acts perpendicularly to the radial direction of a rotating mechanical link. Its directional orientation relative to angular velocity depends entirely on whether the body speeds up or slows down. T...
Q3. A rectangular bar fitted inside a matching rectangular hole is an example of what pair type__________________?
Show answer Hide answer
Answer: A. completely constrained motion
A rectangular bar fitted inside a matching hole can only move back and forth linearly. The geometry of the mating rectangular surfaces completely prevents any rotation or lateral drift. Since motion is restricted to a si...
Q4. Which mechanism converts reciprocating piston motion into continuous rotary motion_______________?
Show answer Hide answer
Answer: B. slider crank
Slider-crank mechanisms consist of a crank, a connecting rod, and a sliding piston forming a closed kinematic chain. This specific geometric arrangement converts linear reciprocating motion into continuous rotational mov...
Q5. Which of the following serves as an example of a higher pair_________________?
Show answer Hide answer
Answer: D. all of the above
Gears, cams, belt drives, and rolling element bearings all feature point or line contact between working surfaces. These concentrated contact interfaces classify all these common mechanical elements as higher kinematic p...
Q6. Which of the following represents an example of a rolling pair________________?
Show answer Hide answer
Answer: D. ball bearing and roller bearing
Ball bearings and roller bearings incorporate rolling elements that move across raceways. This rolling action replaces sliding friction with rolling friction to improve mechanical efficiency. The contact between the roll...