Docsity
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Docsity AI
Docsity AI
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search for your university

Find the specific documents for your university's exams

Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

Tolerance - Materials and Manufacturing Process - Exam, Exams of Materials science

Birla Institute of Technology and ScienceMaterials science

Major Points are give below: Tolerance, Diagram Sketch, Might Align, Pulleys, Meter Apart, Belts Drive, Pitch Circle Diameter, Maintenance, Condition Based Maintenance, Abbreviation

Typology: Exams

2012/2013

Uploaded on 04/13/2013

pankhadi
pankhadi 🇮🇳

4.7

(3)

48 documents

1 / 3

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Cork Institute of Technology
Bachelor of Engineering in Biomedical Engineering – Stage 1
(NFQ Level 7)
Summer 2007
Materials & Manufacturing Process
(Time: 3 Hours)
Instructions
Answer One question, from Section A and Two
questions from Section B.
Use separate answer books for each Section.
Examiners: Mr. D.Sullivan
Mr. T. Kelly
Mr. M. Murphy
Mr. P. McHugh
Section A (20 marks) Answer 1 Question
Q1. (a) With the aid of a diagram sketch how you might align a set of pulleys on two parallel
shafts one meter apart. (8 marks)
(b) 4 matched vee belts drive a machine, if one breaks, should you replace just one or all
four? Why? (4 marks)
(c) A gear has a Pitch Circle Diameter of 180 millimeters and a module of 3 millimeters,
how many teeth does the gear have? (4 marks)
(d) Name three different types of gears. Make a sketch of one. (4 marks)
Q2. (a) Describe 3 different types of maintenance and give one example of each type. (9 marks)
(b) What is Condition Based Maintenance? (3 marks)
(c) List three different types of Condition Monitoring. (3
marks)
(d) In a pneumatic system what does the abbreviation F.R.L stand for? (2 marks)
(e) Break the following sequence up into groups A+B+B-A-C+C-
What is the least amount of groups needed? (3 marks)
pf3

Partial preview of the text

Download Tolerance - Materials and Manufacturing Process - Exam and more Exams Materials science in PDF only on Docsity!

Cork Institute of Technology

Bachelor of Engineering in Biomedical Engineering – Stage 1

(NFQ Level 7)

Summer 2007

Materials & Manufacturing Process

(Time: 3 Hours)

Instructions Answer One question, from Section A and Two questions from Section B. Use separate answer books for each Section.

Examiners: Mr. D.Sullivan Mr. T. Kelly Mr. M. Murphy Mr. P. McHugh

Section A (20 marks) Answer 1 Question

Q1. (a) With the aid of a diagram sketch how you might align a set of pulleys on two parallel

shafts one meter apart. (8 marks) (b) 4 matched vee belts drive a machine, if one breaks, should you replace just one or all four? Why? (4 marks) (c) A gear has a Pitch Circle Diameter of 180 millimeters and a module of 3 millimeters, how many teeth does the gear have? (4 marks) (d) Name three different types of gears. Make a sketch of one. (4 marks)

Q2. (a) Describe 3 different types of maintenance and give one example of each type. (9 marks) (b) What is Condition Based Maintenance? (3 marks) (c) List three different types of Condition Monitoring. ( marks) (d) In a pneumatic system what does the abbreviation F.R.L stand for? (2 marks) (e) Break the following sequence up into groups A+B+B-A-C+C- What is the least amount of groups needed? (3 marks)

Section B (55 marks) Answer 2 Questions

Q3. (a) In an exercise to measure the included angle of an Internal Taper using precision spheres and a depth micrometer, the following information was obtained. D = 40 mm (Diameter of the Larger sphere) d = 8 mm (diameter of the smaller sphere) h = 3 mm (refer to Figure Q3 (a) attached) H = 85 mm. Calculate the included angle of the taper. (10 marks) (b) Define the following terms as used in (^) BS4500 - Limits and Fits i. Nominal Size ii. Limits of Size iii. Tolerance (6 marks) (c) When using slip gauges, certain rules must be observed to ensure maximum accuracy. What are these rules? (5 marks) (d) State clearly the slip gauges required to make a stack of 63.8275mm using a standard Metric Set. Two 2.5mm protector slips must be included in your stack. Refer to figure Q3(d) attached. (6.5 marks)

Q4. (a) A lathe running at 2000rpm is used to reduce a bar of diameter 30mm to a diameter of 29mm. The force on the cutting tool is 350N at a feedrate of 0.05mm/rev. Calculate: (i) Power Consumption during the operation. (ii) Rate of Metal Removal. (8 marks) (b) Describe the forces acting on a single point cutting tool during a cutting operation. State clearly how each force relates to the power consumption as cutting proceeds. (9 marks) (c) Sketch a graph to illustrate the relationship between force , power consumption and cutting speed during a typical machining operation. Comment on your graph. (6 marks)

(d) What is the main limitation of Diamond as a cutting tool material? (4.5 marks)