Seat No.: ________ Enrolment No.
___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER–VII (NEW) EXAMINATION – WINTER 2023
Subject Code:3171929 Date:01-12-2023
Subject Name: Quality and Reliability Engineering
Time: 10:30 AM TO 01:00 PM Total Marks:70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Simple and non-programmable scientific calculators are allowed.
Q.1 (a) How Juran, Deming and Crosby define Quality? 03
(b) Enlist the dimensions of Quality and explain any three dimensions of Quality 04
in detail.
(c) Explain in brief house of quality – Product Planning matrix with suitable 07
example.
Q.2 (a) Describe 80/20 rule of Pareto diagram in detail. 03
(b) Illustrate the purpose of implementation of ISO 14000 in industries for India. 04
(c) Explain how FMEA helps in ensuring quality of a product. Draw a typical 07
format of FMEA and explain the influence of RPN number in FMEA.
OR
(c) What is Total Employee involvement? How leader can improve the total 07
employee involvement?
Q.3 (a) Enlist the steps of Experimental design process. 03
(b) Why Poka-Yoke is known as error-proofing techniques? 04
(c) Briefly explain Toyota’s seven deadly wastes. 07
OR
Q.3 (a) What is Design of Experiments (DOE)? Enlist the types of Experimental 03
Design.
(b) What is fishbone diagram? Construct fishbone diagram for poor mileage of 04
two-wheeler.
(c) Explain briefly seven principles of JIT in detail. 07
Q.4 (a) Briefly explain Autonomous Maintenance? 03
(b) Explain the Cost of Quality in detail. 04
(c) Explain Lean manufacturing and World class manufacturing in detail. 07
OR
Q.4 (a) Discuss the differences between a traditional push system and a JIT demand- 03
pull system.
(b) Illustrate Agile manufacturing with suitable example. 04
(c) Briefly explain the concept of Six sigma with its advantages and limitations. 07
Q.5 (a) Define Maintainability and availability and compare it with reliability. 03
(b) Define the terms in context of reliability 1) MTTF 2) Reliability function 3) 04
Failure rate 4) Active redundancy
(c) What is inspection and repair availability model? Explain a case for it. 07
1
OR
Q.5 (a) Enlist types of Reliability and explain any three. 03
(b) Derive equation for hazard rate function using reliability, probability density 04
function and cumulative distribution function.
(c) What are the four types of benchmarking? How it is useful in industries? 07
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