33 Questions 27 Answers 0 Followers
Questions related from Parag Sen
In my data envelopment analysis (DEA) model, I have 3 outputs, namely (i) No. of Sponsored Projects, (ii) No. of Consultancies and (iii) Total Revenue generated from Sponsored Projects and...
14 September 2022 9,186 2 View
If noise factors are uncontrollable factors, then how can we fix the levels of the noise factors (outer array) while conducting Taguchi experiments?
14 May 2020 2,685 0 View
In book it is written that “Acceptable Quality Limit (AQL) is the point at (up to) which the customer will have to definitely accept the lot and Lot Tolerance Percent Defective (LTPD) is the point...
24 April 2020 1,421 0 View
If f(t) represents the probability density of failure rate, then how it it possible that f(t) will follow exponential distribution whereas the failure rate is constant?
17 July 2018 6,923 4 View
MICLASS and DCLASS coding system in group technology follow which type of coding: monocode, polycode or mixcode? Why Opitz classification and coding system is a mixed code. I can understand that...
07 June 2018 7,551 3 View
Suppose, I have two predictor/independent variables A and B that (i.e. both A and B) affect a dependent variable D. I have also a moderator variable C that influences the relationship between A...
07 June 2018 5,001 3 View
Which is not an essential requirement of JIT purchasing? (i) Stable relation with vendor (ii) Simple purchase agreement (iii) Timely exact quantity delivery (iv) Specifying all conceivable design...
17 April 2018 8,527 8 View
In which phase [Initiation, Planning/Design Phase, Execution and Closing] of a project, project appraisal is conducted to accept or reject a project?
29 March 2018 3,357 9 View
In the last month’s record if output=Rs. 20000, human input=Rs.10000, material input=Rs.2000, capital input=Rs.1000, energy=Rs.500 and other expenses=Rs.1000, calculate total factor productivity.
24 March 2018 6,026 17 View
In CRS model, the input and output oriended objective function values are reciprocal to each others. But why not in VRS?
15 March 2018 3,921 6 View
In primal form of DEA CRS model, we are going to maximize the efficiency of the reference firm. But how is it possible that in the dual form also, we are minimizing the efficiency of the reference...
01 March 2018 9,690 13 View
Which of the following is not a component of inventory carrying cost? i) capital cost ii) transportation cost iii) insurance cost iv) obsolescence cost.
23 February 2018 3,060 20 View
Cycle counting i) is a process by which inventory records are verified once a year ii) provides a measure of inventory accuracy iii) provides a measure of inventory turnover iv) assumes that...
23 February 2018 1,829 5 View
The implementation of JIT offers several advantages, including (i) work-in-process increases (ii) rework reduction (iii) decreased profit margins (iv) increase in variability to better respond to...
22 February 2018 4,801 5 View
We know that during planning/desgin phase of a project (project scheduling) CPM/PERT analysis is carried out. But in which phase of a project crashing of CPM/PERT analysis is carried out? Is it...
15 December 2017 4,160 5 View
Project life cycle has four phases namely, (i) Initiation phase, (ii) Planning/Design Phase (Work Breakdown Structure), (iii) Execution/Control Phase and (iv) Closing Phase. Among these for...
14 December 2017 2,210 3 View
In Branch and Bound Algorithm, if the linear relaxation of the problem provides more than one fractional values (for more than one decision variables), then which decision variable should be...
07 November 2017 9,090 7 View
In transportation problem, which method gives the best result: North-West, Row Minima, Column Minima, Least Cost or Vogel’s Approximation (VAM)?
07 November 2017 8,125 32 View
Problem Statement: A television manufacturer has decided to produce and sell two different types of TV sets, small and big. They assure that the small will give a profit of $300 per unit and the...
05 August 2017 9,294 15 View
I have two questions. If anybody helps me, I shall be highly obliged. Thanks in advance. (i) Can anybody provide me the generalized primal version (i.e. maximization problem) of input-oriented VRS...
28 January 2017 387 1 View
We know that the general ARIMA equation is given by:Yt^ = μ + Φ1Yt-1 + …+ ΦpYt-p - θ1et-1 - … - θqet-q The following data is given: Period(s): 1 2 3 4 5 6 7 Yt: ...
20 June 2016 6,438 8 View
We know that CPM uses activity oriented network (since nodes represent activities) and PERT uses event oriented network (since nodes represent events). So is it mandatory to use activity on node...
19 March 2016 3,724 6 View
Read 5 answers by scientists to the question asked by Parag Sen on Feb 24, 2016
24 February 2016 8,783 3 View
If a product is launched in the market, what will be the reliability of the product? Is it 0 or 0.5 or 1 or does not exist. Please explain.
24 February 2016 2,114 10 View
Why maximum power is produced when all air is burnt i.e. rich air-fuel mixture is required? However, maximum temperature in cylinder is obtained at an air-fuel ratio of about 1.05 to 1.1 i.e. lean...
15 February 2016 5,574 3 View
Why idling condition requires more power because the vehicle is not moving?
14 February 2016 2,886 3 View
When (lean, stoichiometric or rich) maximum power is produced in SI and CI engines and why?
14 February 2016 5,439 2 View
In diesel engine excess air is normally (high air-fuel ratio or lean mixture) used. Then why the particulates or soot emission is higher in diesel engine than gasoline or petrol engine? So far I...
14 February 2016 5,311 8 View
I know that in SI engines the air-fuel ratio is controlled by the carburetor (using the throttle valves). But in case of direct injection system how the air-fuel ratio is controlled by the petrol...
14 February 2016 3,523 6 View
If anybody kindly helps me to clear my doubts, I shall be highly obliged: We know that as the air-fuel ratio (AFR) is leaned out due to supercharging or turbocharging, the temperature of the...
12 February 2016 8,507 8 View
In book it is written:In SI engine, the charge that autoignites is homogeneous and therefore intensity of knocking or the rate of pressure rise at explosive autoignition is likely to be more than...
11 February 2016 7,359 7 View
1. In the basic CCR model of DEA, we want to maximize the sum of weighted outputs. Then why don’t we want to minimize the sum of weighted inputs in its dual form? 2. What does the variable θ mean...
30 June 2015 1,795 7 View
I am looking for the answers of the following questions. Any kind of help is highly appreciated. 1. In the primal form of DEA, we want to maximize the efficiency (θ) of any Decision Making Unit...
28 June 2015 3,288 8 View
