Assignment on Engg

1. 22/06/2021 Quality Control and Improvement with MINITAB - - Unit 10 - Week 8
https://onlinecourses.nptel.ac.in/noc21_mg47/unit?unit=100&assessment=101 1/4
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NPTEL (https://swayam.gov.in/explorer?ncCode=NPTEL) » Quality Control and Improvement with
MINITAB (course)
(https://swayam.gov.in) (https://swayam.gov.in/nc_details/NPTEL)
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Course
outline
How does an
NPTEL online
course work?
Week 0
Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Lecture 36:
Factorial
Experiments
(Contd.) (unit?
unit=100&lesson=103)
Lecture 37:
Blocking in
1 point
1)
1 point
2)
1 point
3)
Objective Assignment 8
The due date for submitting this assignment has passed.
Due on 2021-04-14, 23:59 IST.
As per our records you have not submitted this assignment.
The value of composite desirability in MRO solution will be
between 0 and 1
between -1 and 1
between -1 and 0
greater than 1
No, the answer is incorrect.
Score: 0
Accepted Answers:
between 0 and 1
When there are several control variables, the system or process is likely to be
driven primarily by some of the main effects and lower-order interactions. This idea is referred to
as:
The blocking principal
The projection property
The sparsity of effects principle
Hierarchy principal
No, the answer is incorrect.
Score: 0
Accepted Answers:
The sparsity of effects principle
In a factorial experiment, 3 design means,
3 control factors, each at p level
p

2. 22/06/2021 Quality Control and Improvement with MINITAB - - Unit 10 - Week 8
https://onlinecourses.nptel.ac.in/noc21_mg47/unit?unit=100&assessment=101 2/4
Factorial
Design (unit?
unit=100&lesson=104)
Lecture 38:
Multiple
response
Optimization &
RSM (unit?
unit=100&lesson=105)
Lecture 39:
Fractional
Factorial
Design (unit?
unit=100&lesson=106)
Lecture 40:
Taguchi
Method (unit?
unit=100&lesson=107)
Quiz :
Objective
Assignment 8
(assessment?
name=101)
Subjective
Assignment 8
(/noc21_mg47/subjective?
name=102)
Assignment
solutions-8
(unit?
unit=100&lesson=112)
Weekly
Feedback
(unit?
unit=100&lesson=108)
Download
Videos (unit?
unit=100&lesson=109)
1 point
4)
1 point
5)
1 point
6)
1 point
7)
p control factors, each at 3 level
3 parameters to estimate in response surface
p noise factors, each at 3 level
No, the answer is incorrect.
Score: 0
Accepted Answers:
p control factors, each at 3 level
The value of desirability function when a response matches with target value is
0
1
-1
Between 0 and 1
No, the answer is incorrect.
Score: 0
Accepted Answers:
1
Taguchi’s loss function is defined by L(x) = k(Y-N) . What does ‘N’ stand for?
Tolerance
Quality loss coefficient
Nominal value of the given response
Specification limit(s)
No, the answer is incorrect.
Score: 0
Accepted Answers:
Nominal value of the given response
In a Resolution IV fractional factorial design,
Main effects are generally aliased with three-factor interactions.
Main effects are aliased with two-factor interactions.
Main effects are confounded with each other.
All of the above statements are true.
No, the answer is incorrect.
Score: 0
Accepted Answers:
Main effects are generally aliased with three-factor interactions.
When a lower value of response is the performance criteria, then the corresponding
S/N ratio is expressed as
2

3. 22/06/2021 Quality Control and Improvement with MINITAB - - Unit 10 - Week 8
https://onlinecourses.nptel.ac.in/noc21_mg47/unit?unit=100&assessment=101 3/4
1 point
8)
1 point
9)
1 point
10)
1 point
11)
No, the answer is incorrect.
Score: 0
Accepted Answers:
The key to the Taguchi method is,
Orthogonal array
Interaction between Control and Noise Factors
The sparsity of Effects Principal
All of the above
No, the answer is incorrect.
Score: 0
Accepted Answers:
All of the above
The fundamental concept of the phrase “Block if you can, randomize if you can’t.”
means that:
It is usually better to randomize within blocks.
If you cannot block the nuisance variable, this will violate the assumption of constant
variance.
Create blocks if the nuisance factor is known and controllable, and randomize
experiments if the nuisance factor is unknown.
Randomize the runs when you block a controllable factor
No, the answer is incorrect.
Score: 0
Accepted Answers:
Create blocks if the nuisance factor is known and controllable, and randomize experiments if
the nuisance factor is unknown.
It is possible to combine two or more fractional factorials to assemble a large design
sequentially to estimate the factor effects and interactions of interest. This is referred as,
The projection property
Sequential experimentation
The sparsity of effects principle
Design resolution
No, the answer is incorrect.
Score: 0
Accepted Answers:
Sequential experimentation
Center points are added to a factorial design to determine
linearity in response surface
curvature in response surface
optimal setting using response surface
quadratic equation of response surface
h i i

4. 22/06/2021 Quality Control and Improvement with MINITAB - - Unit 10 - Week 8
https://onlinecourses.nptel.ac.in/noc21_mg47/unit?unit=100&assessment=101 4/4
1 point
12)
1 point
13)
1 point
14)
No, the answer is incorrect.
Score: 0
Accepted Answers:
curvature in response surface
Which of these can be achieved in a process by using the statistical design of
experiments?
Increased process capability
Reduced variability
Increase Sigma Level
All of the above
No, the answer is incorrect.
Score: 0
Accepted Answers:
All of the above
It is given that the individual optimal desirability values for the three responses are
0.5, 0.67, and 0.55. What will be the composite desirability value (rounded up to two places of
decimal) considering the geometric mean approach?
0.67
0.50
0.57
0.18
No, the answer is incorrect.
Score: 0
Accepted Answers:
0.57
How many experiments will be done for a 2 fractional factorial design?
128
16
8
64
No, the answer is incorrect.
Score: 0
Accepted Answers:
8
7-4