Exam Details
| Subject | Power Transmitting Elements | |
| Paper | ||
| Exam / Course | Diploma in Mechanical Engineering (DMEVI)& B.Tech. MECHANICAL ENGINEERING 1-4 (BTMEVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2016 | |
| City, State | new delhi, |
Question Paper
Explain with sketch how the velocities of different points on-a link are calculated with instantaneous centre method.
Discuss the merits and demerits of belt, rope, chain and gear drives for the transmission of power.
A solid circular shaft of diameter is subjected to a torsional moment Mt and a bending moment Mb. Find the various types of stresses induced in it.
What is the difference between the open belt drive and crossed belt drive Derive the expression for the length of belt in terms of diameter of pulleys and the centre distance between them.
What is the effect of initial tension in belts on maximum power transmitted by them?
How are different types of chains classified ?Describe with sketches.
4. Discuss the constructional features of ropes used for power transmission. What type of stresses are induced in wire ropes?
5. Give the classification of gears.
What are the various forms of gear tooth profiles? Compare them.
What are the desirable properties of gear materials Discuss the necessity and methods of gear lubrication.
Discuss the different types of worms and worm gears. What are spiral and hypoid gears?
For a single speed spur gear drive, gear ratio is 10: 1 and centre distance is 27·5 cm. The pinion transmits 500 HP at 1800 rpm. Assume involute teeth with standard addendum of one module and pressure angle of 22.5°. If normal tooth pressure is not to exceed 1000 kg/cm^2 of width, find:
Diametrical pitch, if no interference
The number of teeth in each wheel
The width of pinion
7. Write short notes on the following:
Types of keys
Flexible bushed pin coupling
Gear hobbing
Types of failures in gears
8. What is the condition for the maximum. power transmitted by a belt in terms of centrifugal tension and belt strength
A shaft which rotates at a constant speed of 160 rpm is connected by belting to a parallel shaft 72 cm apart which has to run at 60, 80 and 100 rpm. The smallest pulley on the driver shaft is 4 cm in radius. Determine the remaining radii of two stepped pulleys for.
a crossed belt
an open belt
Neglect belt thickness and slip.
Discuss the merits and demerits of belt, rope, chain and gear drives for the transmission of power.
A solid circular shaft of diameter is subjected to a torsional moment Mt and a bending moment Mb. Find the various types of stresses induced in it.
What is the difference between the open belt drive and crossed belt drive Derive the expression for the length of belt in terms of diameter of pulleys and the centre distance between them.
What is the effect of initial tension in belts on maximum power transmitted by them?
How are different types of chains classified ?Describe with sketches.
4. Discuss the constructional features of ropes used for power transmission. What type of stresses are induced in wire ropes?
5. Give the classification of gears.
What are the various forms of gear tooth profiles? Compare them.
What are the desirable properties of gear materials Discuss the necessity and methods of gear lubrication.
Discuss the different types of worms and worm gears. What are spiral and hypoid gears?
For a single speed spur gear drive, gear ratio is 10: 1 and centre distance is 27·5 cm. The pinion transmits 500 HP at 1800 rpm. Assume involute teeth with standard addendum of one module and pressure angle of 22.5°. If normal tooth pressure is not to exceed 1000 kg/cm^2 of width, find:
Diametrical pitch, if no interference
The number of teeth in each wheel
The width of pinion
7. Write short notes on the following:
Types of keys
Flexible bushed pin coupling
Gear hobbing
Types of failures in gears
8. What is the condition for the maximum. power transmitted by a belt in terms of centrifugal tension and belt strength
A shaft which rotates at a constant speed of 160 rpm is connected by belting to a parallel shaft 72 cm apart which has to run at 60, 80 and 100 rpm. The smallest pulley on the driver shaft is 4 cm in radius. Determine the remaining radii of two stepped pulleys for.
a crossed belt
an open belt
Neglect belt thickness and slip.
Other Question Papers
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Subjects
- Advanced Dynamics Of Machine
- Automobile Engineering
- Combustion Engineering
- Computer Aided Manufacturing
- Computing Aided Design
- Design of Machine Elements
- Engineering Metallurgy
- Engineering Thermodynamics
- Experimental Stress Analysis
- Finite Element Analysis
- Fluid Mechanics
- Heat And Mass Transfer
- Heat Transfer
- I.C. Engines
- Industrial Engineering
- Industrial Ergonomics
- Industrial Measurement And Quality Control
- Industrial Organization And Management
- Kinematics and Dynamics of Machines
- Machine Design - I
- Machine Design-Ii
- Machine Drawing
- Machines Tools
- Maintenance Engineering
- Material Science
- Materials Handling
- Mechanical System Design
- Mechanical Vibration
- Mechanics Of Materials
- Mechatronics
- Metrology
- Metrology And Quality Control
- Non-Conventional Energy Resources
- Non-Destructive Testing
- Nuclear Power Engineering
- Optimisation Techniques In Engineering
- Optimization For Engineering Design
- Power Plant Engineering
- Power Transmitting Elements
- Product Development And Design
- Production And Operations Management
- Production Technology - Ii
- Production Technology-I
- Refrigeration And Air Conditioning
- Refrigeration System
- Robotics
- Safety Engineering
- Technical Entrepreneurship
- Thermal Engineering
- Thermal Engineering - I
- Thermofluid Engineering
- Total Quality Management (Tqm)
- Tribology
- Turbo Machines
- Unconventional Manufacturing Processes
- Welding Engg.