Exam Details
| Subject | Production Technology - Ii | |
| 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 | December, 2015 | |
| City, State | new delhi, |
Question Paper
What do you mean by the term Name the methods by which taper turning can be carried out on lathes. What are the advantages of using a taper turning attachment?
What do you mean by continuous and discontinuous chips? List the conditions that are favourable for the formation of
Continuous chips, and
Discontinuous chips.
What are the main differences between a turret lathe and a capstan lathe?
A work-piece of 250 mm diameter and 500 mm length is to be turned down to 235 mm diameter for the entire length. The recommended feed is 1 mm/revolution and the cutting speed is 135 m/min. The maximum allowable depth of cut is 5.0 mm.
Calculate:
Spindle rpm
Feed speed
Material removal rate
Cutting time
What factors are likely to give rise to excessive heat during a metal-cutting operation?
Calculate the machining time required for machining a surface 600 mm x 800 mm on a shaping machine. Assume cutting speed as 8 m/min. The return-to-cutting time ratio is 1:4 and the feed is 2 mm/double-stroke. The clearance at each end is 70mm.
List down the factors on which the performance of a grinding wheel depends.
A hole of 25 mm diameter and 62.5 mm depth is to be drilled. The suggested feed is 1.25mm/revolution and the cutting speed is 60 m/min. Assuming tool approach and tool overtravel as 5 mm, calculate the
Spindle rpm,
Feed speed,
Cutting time, and
Material removal rate.
What is the fundamental difference between a planner and a shaper
Tool life testing on a lathe under dry condition gave n and C of Taylor's tool life equation as 0.12 and 130 m/min respectively. When a coolant was used, C increased by 10%. Find the percentage increase in tool life with the use of coolant at a cutting speed of 90 m/min.
Discuss the advantages and disadvantages of CNC.
What are the applications of NC systems? Also differentiate between NC and CNC.
How are boring machines classified Discuss briefly, with a neat sketch, a horizontal boring machine.
Calculate the time taken to turn a brass component 60 mm diameter by 84 mm long, if the cutting speed is 50 m/min and the feed is 0.4 mm/revolution. Only one cut is to be considered. Neglect tool approach and tool travel.
How are milling machines broadly classified Name the various operations which can be performed on a milling machine.
Write short notes on any two of the following:
NC Part Programming
APr Programming
Universal Chuck
Centreless Grinding Machine
Adaptive Control System
What do you mean by continuous and discontinuous chips? List the conditions that are favourable for the formation of
Continuous chips, and
Discontinuous chips.
What are the main differences between a turret lathe and a capstan lathe?
A work-piece of 250 mm diameter and 500 mm length is to be turned down to 235 mm diameter for the entire length. The recommended feed is 1 mm/revolution and the cutting speed is 135 m/min. The maximum allowable depth of cut is 5.0 mm.
Calculate:
Spindle rpm
Feed speed
Material removal rate
Cutting time
What factors are likely to give rise to excessive heat during a metal-cutting operation?
Calculate the machining time required for machining a surface 600 mm x 800 mm on a shaping machine. Assume cutting speed as 8 m/min. The return-to-cutting time ratio is 1:4 and the feed is 2 mm/double-stroke. The clearance at each end is 70mm.
List down the factors on which the performance of a grinding wheel depends.
A hole of 25 mm diameter and 62.5 mm depth is to be drilled. The suggested feed is 1.25mm/revolution and the cutting speed is 60 m/min. Assuming tool approach and tool overtravel as 5 mm, calculate the
Spindle rpm,
Feed speed,
Cutting time, and
Material removal rate.
What is the fundamental difference between a planner and a shaper
Tool life testing on a lathe under dry condition gave n and C of Taylor's tool life equation as 0.12 and 130 m/min respectively. When a coolant was used, C increased by 10%. Find the percentage increase in tool life with the use of coolant at a cutting speed of 90 m/min.
Discuss the advantages and disadvantages of CNC.
What are the applications of NC systems? Also differentiate between NC and CNC.
How are boring machines classified Discuss briefly, with a neat sketch, a horizontal boring machine.
Calculate the time taken to turn a brass component 60 mm diameter by 84 mm long, if the cutting speed is 50 m/min and the feed is 0.4 mm/revolution. Only one cut is to be considered. Neglect tool approach and tool travel.
How are milling machines broadly classified Name the various operations which can be performed on a milling machine.
Write short notes on any two of the following:
NC Part Programming
APr Programming
Universal Chuck
Centreless Grinding Machine
Adaptive Control System
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
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.