Crack The Case - Online Quiz
Sankriya : The Operations and General Management Club, Indian Institute of Management Ranchi (IIM Ranchi), is organizing "Crack the Case" in association with CarDekho. Com for its annual management fest - "AGON"The first round of the event is an online quiz. Please be informed that this round is an elimination round and teams selected from this round would proceed to the next round which is a "Live Case Study" round.
There are 30 questions to be answered in 25 minutes.
In Case of a tie in marks, the teams who submit the answers first would be taken into consideration. Read more
Please note that only one submission per team is allowed. Multiple submission from same team would lead to disqualification from the event. All the best !
Questions and Answers
- 1.
Which of the following cases shows the case of capacity leading demand-strategy?
- A.
A and B
- B.
B and C
- C.
C and D
- D.
A and C
Correct Answer
A. A and BExplanation
The case of capacity leading demand-strategy refers to a situation where a company increases its production capacity in anticipation of future demand. In the given options, both A and B represent this strategy as they involve increasing capacity to meet potential demand. Option B and C, C and D, and A and C do not demonstrate capacity leading demand-strategy as they do not involve increasing capacity.Rate this question:
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- 2.
The processing times for 3 different jobs are given below. For each job grinding has to be performed before welding. Assume that the machines are continuously available ,set up times are independent of the jobs and included in the processing times and an operation cannot be stopped while running once it starts on the job. Which of the following sequences of the jobs in the machine reduces the total time taken to perform operation on all the 3 jobs. Job NumberMachine 1 (Grinding)Machine 2 (Welding)15 Hours4 Hours28 Hours9 Hours32 Hours3 Hours
- A.
2-3-1 on both machines
- B.
3-1-2 on both machines
- C.
1-3-2 on machine 1 and 3-2-1 on machine
- D.
3-2-1 on both machines
Correct Answer
A. 2-3-1 on both machines -
- 3.
Following information is known about a plant :No. of full time workers : 100Achievable cycle time : 10 min/ unitWorking hrs after accounting for break : 8No. of units produced per day : 44Calculate the plant utilization.
- A.
91.67 %
- B.
95 %
- C.
96 %
- D.
None of the above
Correct Answer
A. 91.67 %Explanation
The plant utilization can be calculated by dividing the total time spent on production by the total available time. In this case, the total time spent on production is calculated by multiplying the number of units produced per day by the achievable cycle time, which is 44 units * 10 minutes/unit = 440 minutes. The total available time is calculated by multiplying the number of full-time workers by the working hours after accounting for breaks, which is 100 workers * 8 hours = 800 hours. Converting the total available time to minutes gives us 800 hours * 60 minutes/hour = 48,000 minutes. Dividing the total time spent on production by the total available time and multiplying by 100 gives us (440 minutes / 48,000 minutes) * 100 = 0.9167 * 100 = 91.67%. Therefore, the correct answer is 91.67%.Rate this question:
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- 4.
Which structure shows the reporting relationships and communication channels for a project ?
- A.
Work breakdown structure
- B.
Organizational breakdown structure
- C.
Product breakdown structure
- D.
Responsibility assignment structure
Correct Answer
B. Organizational breakdown structureExplanation
The organizational breakdown structure shows the reporting relationships and communication channels for a project. It provides a hierarchical representation of the project team, including the project manager, functional managers, and team members. This structure helps to clarify roles and responsibilities within the project and ensures effective communication and coordination among team members. It also helps to identify the reporting lines and authority levels within the project organization.Rate this question:
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- 5.
ABC corporation is going through transformation and wants to improve its process for greater efficiency and reducing defects. Mr.Ram has been given the task of collecting subjective data to make quantitative estimates of the key process input variables on key process output variables to understand the most important factor to improve the overall process. What tool is Mr.Ram utilizing?
- A.
C & E matrix
- B.
Capability maturity model
- C.
3G’s method
- D.
Process improvement analysis
Correct Answer
A. C & E matrixExplanation
Mr. Ram is utilizing the C & E matrix tool. The C & E matrix, also known as the Cause and Effect matrix or the Fishbone diagram, is a visual tool used to identify and analyze the potential causes of a problem or an outcome. In this case, Mr. Ram is using the C & E matrix to collect subjective data and make quantitative estimates of the key process input variables on key process output variables. This will help him understand the most important factor that needs improvement in order to enhance the overall process efficiency and reduce defects.Rate this question:
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- 6.
In the year 2022, a situation has arrived (hypothetically) where no supply chain partner could improve his utility individually. This situation is called
- A.
Pareto optimum
- B.
Nest equilibrium
- C.
Nash equilibrium
- D.
Stackelberg equilibrium
Correct Answer
C. Nash equilibriumExplanation
Nash equilibrium refers to a situation where no supply chain partner can improve their utility by unilaterally changing their strategy, given the strategies chosen by the other partners. In this hypothetical scenario, all supply chain partners have reached a point where they have maximized their utility and any change in strategy would not result in any further improvement. Therefore, the correct answer is Nash equilibrium.Rate this question:
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- 7.
This quantity is the uncommitted inventory balance in the first period of a Master production schedule and is normally calculated for each period in which a MPS receipt is scheduled.
- A.
Assemble to order
- B.
Available to promise
- C.
Available to engineer
- D.
Engineered to order
Correct Answer
B. Available to promiseExplanation
The correct answer is "Available to promise." Available to promise is a term used in supply chain management to refer to the uncommitted inventory balance in the first period of a Master production schedule. It is calculated for each period in which a MPS receipt is scheduled. This term indicates the quantity of inventory that is available to be promised to customers or to fulfill future orders.Rate this question:
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- 8.
Mr. A works for a manufacturing industry and wanted to measure the stability of the processes in the industry. He collects data in subgroups of size 7 and wanted to measure the subgroup variability using charts in minitab. What type of chart does he use?
- A.
Xbar chart
- B.
Xbar-R chart
- C.
Xbar-S chart
- D.
None of the above
Correct Answer
B. Xbar-R chartExplanation
Mr. A collects data in subgroups of size 7, which is typically used for measuring process stability. The Xbar-R chart is used to monitor the process mean and variability over time. The Xbar chart is used to monitor the process mean, while the R chart is used to monitor the process variability. Therefore, Mr. A would use the Xbar-R chart to measure the subgroup variability in the manufacturing industry.Rate this question:
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- 9.
Objectives are the goals of any action which involve achieving milestones within certain timelines. The decisions regarding development of organisational objectives and setting of frameworks to achieve the same are:
- A.
Operational Control decisions
- B.
Strategic Plannnig Decisions
- C.
Management Control decisions
- D.
Management Information decisions
Correct Answer
B. Strategic Plannnig DecisionsExplanation
Strategic planning decisions involve the development of organizational objectives and the setting of frameworks to achieve those objectives. These decisions are focused on long-term goals and involve determining the direction and scope of the organization. They typically involve analyzing the external environment, assessing internal capabilities, and formulating strategies to achieve competitive advantage. Strategic planning decisions help guide the overall direction of the organization and align its resources and activities towards achieving its long-term goals.Rate this question:
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- 10.
A strategic relationship established between an organization and its clients to offer management and oversight services for the client's logistics and transportation providers is known as :
- A.
Third-party logistics (3PL)
- B.
Trade organization
- C.
Fourth party logistics
- D.
Independent agent
Correct Answer
C. Fourth party logisticsExplanation
Fourth party logistics refers to a strategic relationship between an organization and its clients where the organization provides management and oversight services for the client's logistics and transportation providers. Unlike third-party logistics, which involves outsourcing logistics operations to a third-party provider, fourth party logistics focuses on managing and coordinating multiple logistics providers on behalf of the client. This arrangement allows the organization to have greater control and visibility over the entire supply chain process.Rate this question:
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- 11.
Which city is known as “the capital of engines”?
- A.
Stuttgart
- B.
Modena
- C.
London
- D.
Michigan
Correct Answer
B. ModenaExplanation
Modena is known as "the capital of engines" because it is the birthplace of several famous Italian sports car manufacturers, such as Ferrari, Maserati, and Pagani. These companies have a long history of producing high-performance engines and luxury vehicles, earning Modena its reputation as a hub for automotive excellence.Rate this question:
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- 12.
Operations Manager of a manufacturing factory ‘X’, is planning to set the production target for the month of Aug-2015. He uses first order exponential smoothing technique to forecast the demand. Actual and forecasted demand for the last four months are as follows : MonthApr-2015May-2015Jun-2015Jul-2015Forecast52.043.644.647.8Actual40.045.049.252.0The demand forecast for the month of Sep-2015 is:
- A.
47.9
- B.
48.6
- C.
51.3
- D.
50.7
Correct Answer
D. 50.7Explanation
The first order exponential smoothing technique uses a weighted average of past demand values to forecast future demand. The forecast for each month is calculated using the formula: Forecast = (1-alpha) * Actual + alpha * Forecast (where alpha is the smoothing constant). In this case, the actual demand for the last four months and the forecasted demand for the previous month are given. By plugging in the values and solving the equation, we find that the forecasted demand for the month of Sep-2015 is 50.7.Rate this question:
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- 13.
Connect
Correct Answer
ExxonMobilExplanation
ExxonMobil is a multinational oil and gas corporation, and "Connect" can refer to the connection between ExxonMobil and its various stakeholders. This connection can be in terms of partnerships with other companies, relationships with customers and suppliers, or engagement with local communities and governments. Additionally, "Connect" can also imply the company's efforts to connect people and resources through its products and services, such as providing energy for transportation and connectivity.Rate this question:
- 14.
JIT uses which of the following layout type?
- A.
L- Shape
- B.
U- Shape
- C.
Comb Arrangement
- D.
Straight Line
Correct Answer
B. U- ShapeExplanation
The correct answer is U-Shape. U-Shape layout is commonly used in Just-In-Time (JIT) systems. This layout arranges workstations in a U-shaped formation, allowing for efficient flow of materials and minimizing movement and transportation time. It promotes better communication and coordination among workers and provides a clear view of the entire production process. This layout is particularly suitable for small batch production and helps in reducing waste and improving productivity.Rate this question:
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- 15.
ABC Works earns a profit of Rs. 75,000 by selling 25,000 units. The selling price and variable cost per unit are Rs. 25 and Rs. 10 respectively. Then the breakeven point occurs at?
- A.
18,000 units
- B.
19,000 units
- C.
20,000 units
- D.
22,000 units
Correct Answer
C. 20,000 unitsExplanation
The breakeven point occurs when the total revenue equals the total cost, resulting in zero profit. In this case, the total revenue can be calculated by multiplying the selling price per unit (Rs. 25) by the number of units sold. The total cost can be calculated by multiplying the variable cost per unit (Rs. 10) by the number of units sold, and adding the fixed costs. Since the profit is Rs. 75,000, the fixed costs can be calculated by subtracting the total cost from the total revenue. By rearranging the equation, we can solve for the breakeven point, which is 20,000 units.Rate this question:
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- 16.
A company operates for 3 shifts of 8 hours each a day and setup time of each machine is 1 hr in each shift. The daily demand is 3780 units and the sum of task times (T) is 100 seconds. The theoretical number (N) of machines required is?
- A.
3
- B.
4
- C.
5
- D.
6
Correct Answer
C. 5Explanation
In order to determine the theoretical number of machines required, we need to consider the total available working hours in a day and the time it takes to complete each unit.
Each shift operates for 8 hours, and there are 3 shifts in a day, so the total available working hours are 3 x 8 = 24 hours.
The setup time for each machine is 1 hour in each shift, so the total setup time in a day is 3 x 1 = 3 hours.
Therefore, the total productive working hours in a day is 24 - 3 = 21 hours.
The daily demand is 3780 units, and the sum of task times is 100 seconds.
To calculate the number of machines required, we divide the total productive working hours by the time it takes to complete each unit:
Number of machines = (Total productive working hours x 3600 seconds) / (Daily demand x sum of task times)
Number of machines = (21 x 3600) / (3780 x 100)
Number of machines = 5
Hence, the correct answer is 5.Rate this question:
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- 17.
The company “X” is headquartered in Silicon Valley, USA. It is a pioneer in designing and manufacturing “Y” products and shares its name with person in the picture below. Identify X and Y.(Note : Answer X and Y separated by ; )
Correct Answer
X- tesla Y- Electric vehiclesExplanation
The company "X" mentioned in the question is headquartered in Silicon Valley, USA, which is the same location as Tesla's headquarters. Tesla is known for designing and manufacturing electric vehicles, which are referred to as "Y" in the question. Therefore, the answer to the question is X- Tesla and Y- Electric vehicles.Rate this question:
- 18.
Which statement is not associated with JIT Purchasing?
- A.
There is usually a single source of supply for a given part in nearby geographical area with long term contract
- B.
Purchasing is carried out in small lots with frequent deliveries
- C.
Suppliers can be innovative in design specifications
- D.
A certain percentage of rejects from a supplier is acceptable
Correct Answer
D. A certain percentage of rejects from a supplier is acceptableExplanation
The statement "A certain percentage of rejects from a supplier is acceptable" is not associated with JIT Purchasing because JIT Purchasing focuses on reducing waste and improving efficiency in the supply chain. Accepting a certain percentage of rejects would lead to inefficiencies and potential disruptions in the production process. JIT Purchasing aims to establish strong relationships with suppliers and ensure high-quality products are delivered on time.Rate this question:
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- 19.
_______ is the average of the errors made by the forecast over a period of time without considering the direction of error.
- A.
Mean Square Error
- B.
Mean Forecast Error
- C.
Mean Absolute Deviation
- D.
Mean Absolute Percentage Error
Correct Answer
C. Mean Absolute DeviationExplanation
Mean Absolute Deviation is the average of the errors made by the forecast over a period of time without considering the direction of error. This means that it calculates the average magnitude of the errors, regardless of whether they are positive or negative. It is a measure of the overall accuracy of the forecast, indicating how far off the forecasted values are from the actual values on average.Rate this question:
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- 20.
The advantages of this type of assembly model is it reduces inventory, and improves service levels and the disadvantages of this model is it requires frequent changeovers from one product to another and adds complexity to the manufacturing task. What model are we talking about?
- A.
Batch assembly
- B.
Just in time
- C.
Mixed model assembly
- D.
Bulk assembly
Correct Answer
C. Mixed model assemblyExplanation
The given advantages and disadvantages indicate that the model being discussed is the mixed model assembly. This model allows for reduced inventory and improved service levels by producing multiple product variants in smaller batches. However, it also requires frequent changeovers between products, which can add complexity to the manufacturing process.Rate this question:
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- 21.
This forecasting method involves utilizing collective judgment of experts and is considered more reliable than individual statements. It is thus more objective in its outcomes.
- A.
Critical path forecasting
- B.
Delphi forecasting
- C.
Collaborative planning forecasting and replenishment
- D.
Box-Jenkins forecasting
Correct Answer
B. DelpHi forecastingExplanation
Delphi forecasting is a forecasting method that involves collecting the opinions and judgments of a group of experts. This method is considered more reliable than individual statements because it combines the collective wisdom and knowledge of multiple experts. By incorporating diverse perspectives and expert opinions, Delphi forecasting aims to reduce biases and errors that may be present in individual forecasts. This collaborative approach helps to ensure more objective and accurate outcomes in the forecasting process.Rate this question:
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- 22.
Connect
Correct Answer
Mumbai DabbawalasExplanation
The Mumbai Dabbawalas are a group of lunchbox deliverymen in Mumbai, India. They have gained worldwide recognition for their efficient and accurate delivery system, which involves the collection of freshly cooked meals from homes and their delivery to office workers. The dabbawalas use a unique coding system and rely on teamwork and meticulous planning to ensure that each lunchbox reaches its intended recipient on time. Their dedication and commitment to their work have made them a symbol of reliability and excellence in logistics.Rate this question:
- 23.
In a simple exponential smoothing problem, the previous forecast of 66 turned out to be six units less than actual demand. The next forecast is 66.9. The smoothing constant α is?
- A.
0.1
- B.
0.3
- C.
0.15
- D.
0.2
Correct Answer
C. 0.15Explanation
In a simple exponential smoothing problem, the smoothing constant (α) determines the weight given to the previous forecast. The fact that the previous forecast was six units less than the actual demand suggests that the model was not able to fully capture the demand pattern. To adjust for this, a smaller α value is needed to give more weight to the actual demand and less weight to the previous forecast. Since the next forecast is 66.9, which is closer to the actual demand, it indicates that the model is improving. Among the given options, 0.15 is the most reasonable choice for α as it strikes a balance between giving weight to the previous forecast and adjusting for the forecasting error.Rate this question:
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- 24.
In an assembly line of two workstations, the sum of task time is 30 seconds. If the cycle time is 20 seconds, the efficiency of balance is?
- A.
65 %
- B.
66.67 %
- C.
70 %
- D.
75 %
Correct Answer
D. 75 %Explanation
The efficiency of balance in an assembly line is calculated by dividing the sum of task time by the cycle time and multiplying by 100. In this case, the sum of task time is 30 seconds and the cycle time is 20 seconds. Therefore, the efficiency of balance is (30/20) * 100 = 1500/20 = 75%.Rate this question:
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- 25.
For which production system are fixed-sequence robots most useful?
- A.
Product focused
- B.
Process focused
- C.
Job-shop
- D.
Intermittent system
Correct Answer
A. Product focusedExplanation
Fixed-sequence robots are most useful in product-focused production systems. In a product-focused system, the production process is organized around specific products or product lines. This means that the production is repetitive and standardized, with a fixed sequence of operations required to produce the product. Fixed-sequence robots are designed to perform a specific set of tasks in a predetermined order, making them well-suited for product-focused systems where the production process follows a fixed sequence.Rate this question:
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- 26.
Which is not associated with the concept of ‘lean production’?
- A.
Time based management
- B.
Management by objectives
- C.
Continuous improvement
- D.
Just in time stock control
Correct Answer
B. Management by objectivesExplanation
Management by objectives is not associated with the concept of 'lean production' because lean production focuses on eliminating waste and improving efficiency in the production process, while management by objectives is a goal-setting and performance management technique that focuses on aligning individual goals with organizational objectives. Although management by objectives can be used in conjunction with lean production principles, it is not inherently a part of lean production itself.Rate this question:
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- 27.
A project has three paths: A—B—C has a length of 25 days. A—D—C has a length of 15 days. A—E—C has a length of 20 days. Which of the following statements is correct?
- A.
A—D—C is the critical path
- B.
A—B—C has the most slack
- C.
The expected duration of the project is 25 days
- D.
The expected duration of this project is 60 days
Correct Answer
C. The expected duration of the project is 25 daysExplanation
Based on the information provided, the project has three paths: A—B—C, A—D—C, and A—E—C. The length of path A—B—C is 25 days, which means that this is the expected duration of the project. Therefore, the correct statement is "The expected duration of the project is 25 days."Rate this question:
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- 28.
What are the two sources of costs in queuing analysis?
- A.
Arrivals and departures
- B.
Arrivals and idleness
- C.
Waiting customers and capacity
- D.
Equipment breakdowns and departures
Correct Answer
C. Waiting customers and capacityExplanation
The two sources of costs in queuing analysis are waiting customers and capacity. Waiting customers refer to the cost incurred due to customers waiting in line, such as the loss of productivity or customer dissatisfaction. Capacity refers to the cost associated with the resources required to handle customers, such as staffing, equipment, or space. By managing these two factors effectively, businesses can optimize their queuing systems and minimize costs.Rate this question:
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- 29.
The model which helps in prioritizing CTQ’s in the define phase of a six sigma project is
- A.
Kano
- B.
Perpetual mapping
- C.
GRPI
- D.
Fishbone diagram
Correct Answer
A. KanoExplanation
The Kano model is a tool used in the define phase of a Six Sigma project to prioritize Critical-to-Quality (CTQ) factors. The Kano model categorizes CTQ factors into three categories: basic, performance, and excitement. Basic factors are expected by customers and their absence leads to dissatisfaction, while performance factors are desired by customers and their presence leads to satisfaction. Excitement factors are unexpected by customers and their presence leads to delight. By understanding the different categories of CTQ factors, the Kano model helps in prioritizing them based on their impact on customer satisfaction and business goals.Rate this question:
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- 30.
A team is monitoring the number of applications received each day with incomplete fields. All applications are being audited. Each day 200-250 applications are received. What kind of control chart is used in this case ?
- A.
IMR
- B.
C-Chart
- C.
P-Chart
- D.
U-chart
Correct Answer
C. P-ChartExplanation
A P-Chart is used in this case because it is used to monitor the proportion of defective items or occurrences in a process. In this scenario, the team is monitoring the number of applications with incomplete fields, which can be considered as defective applications. The P-Chart will help track the proportion of incomplete applications received each day and determine if the process is in control or if there are any significant variations.Rate this question:
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Mar 21, 2023Quiz Edited by
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