Exam Details
| Subject | Design of Machine 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
1. Choose the correct answer.
Following is not one of the failures
Fracture
Elastic deflection
Yielding
Fatigue
As per Morgan, the meaning of 'orange' colour is
Danger-hazard
Caution
Safety
Possible danger
Following is not a mechanical property:
Resilience
Plasticity
Hardening
Hardness
The value of surface roughness for cylinder bores and pistons is
0.50 micron
0.40 micron
0.30 micron
0.20 micron
The thickness of cotter, when diameter of rod is given, is
t d
t 0·21 d
t 0.31 d
t d
Following is a sunk key in the form of semi-circular disk of uniform thickness
Saddle key
Woodruffkey
Gib head taper key
Saddle key
The S-N diagram is also called as
Morgan's diagram
Wohler diagram
Euler's diagram
Goodman diagram
2. Explain the construction of clamp coupling (Split-Muff Coupling) with a neat diagram and brief the design procedure for the same.
3. A rod of linkage mechanism, made of steel 40Crl (Sut 550 is subjected to a completely reversed axial load of 100 kN. The rod is machined on the lathe and the expected reliability is 95%. There is no stress concentration. Determine the diameter of the rod using a factor of safety of 2 for an infinite life condition.
4. The standard cross-section for a flat key, which is fitted on a 50 mm diameter shaft, is 16 x 10 mm. The key is transmitting 475 N-m torque from the shaft to the hub. The key is made of commercial steel (Syt Syc 230 Determine the length of the key, if the factor of safety is 3.
5. Write short notes with diagrams:
Knuckle joint
Different types of keys
6. A helical compression spring of a cam mechanism is subjected to an initial preload of 50 N. The maximum operating force during the load cycle is 150 N. The wire diameter is 3 mm, while the mean coil diameter is 18 mm. The spring is made of oil-hardened and tempered valve spring wire of grade-VW (Sut 1430 Determine the factor of safety used in the design on the basis of fluctuating stresses.
7. Explain with diagram, the 'piston' of an IC engine and also mention the design requirements for the piston.
8. Write short notes on any four of the following:
Creativity in Design
Aesthetic Design Principles
S-N Curve
Shafts and their types
Compression and Torsion Springs
Limits, Fits and Tolerances
Following is not one of the failures
Fracture
Elastic deflection
Yielding
Fatigue
As per Morgan, the meaning of 'orange' colour is
Danger-hazard
Caution
Safety
Possible danger
Following is not a mechanical property:
Resilience
Plasticity
Hardening
Hardness
The value of surface roughness for cylinder bores and pistons is
0.50 micron
0.40 micron
0.30 micron
0.20 micron
The thickness of cotter, when diameter of rod is given, is
t d
t 0·21 d
t 0.31 d
t d
Following is a sunk key in the form of semi-circular disk of uniform thickness
Saddle key
Woodruffkey
Gib head taper key
Saddle key
The S-N diagram is also called as
Morgan's diagram
Wohler diagram
Euler's diagram
Goodman diagram
2. Explain the construction of clamp coupling (Split-Muff Coupling) with a neat diagram and brief the design procedure for the same.
3. A rod of linkage mechanism, made of steel 40Crl (Sut 550 is subjected to a completely reversed axial load of 100 kN. The rod is machined on the lathe and the expected reliability is 95%. There is no stress concentration. Determine the diameter of the rod using a factor of safety of 2 for an infinite life condition.
4. The standard cross-section for a flat key, which is fitted on a 50 mm diameter shaft, is 16 x 10 mm. The key is transmitting 475 N-m torque from the shaft to the hub. The key is made of commercial steel (Syt Syc 230 Determine the length of the key, if the factor of safety is 3.
5. Write short notes with diagrams:
Knuckle joint
Different types of keys
6. A helical compression spring of a cam mechanism is subjected to an initial preload of 50 N. The maximum operating force during the load cycle is 150 N. The wire diameter is 3 mm, while the mean coil diameter is 18 mm. The spring is made of oil-hardened and tempered valve spring wire of grade-VW (Sut 1430 Determine the factor of safety used in the design on the basis of fluctuating stresses.
7. Explain with diagram, the 'piston' of an IC engine and also mention the design requirements for the piston.
8. Write short notes on any four of the following:
Creativity in Design
Aesthetic Design Principles
S-N Curve
Shafts and their types
Compression and Torsion Springs
Limits, Fits and Tolerances
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.