📊 Industrial Engineering & Production Management MCQ Questions and Answers with Live Score
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Practice 100+ important Industrial Engineering & Production Management MCQs covering work study, time study, inventory control, operations research, production planning, quality control, and project management
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📊 Industrial Engineering & Production Management MCQ Questions and Answers (1–100)
These MCQ questions cover key concepts of Industrial Engineering and Production Management including work study, time and motion study, inventory control, operations research, production planning and control, quality management, PERT-CPM, and optimization techniques. These questions are highly important for GATE, IES, SSC JE, RRB JE, and other Mechanical Engineering exams.
Question 1: In time study, the rating factor applied to observed time is used to determine which component of standard time?
a) Allowance time b) Normal time c) Delay time d) Idle time
Question 2: In inventory control, Economic Order Quantity (EOQ) model assumes which condition regarding demand and lead time?
a) Variable demand and uncertain lead time b) Seasonal demand only c) Constant demand and constant lead time d) Random demand
Question 3: In method study, the primary objective of motion economy principles is to achieve which outcome?
a) Increase worker fatigue b) Increase idle time c) Minimize unnecessary motions and improve efficiency d) Increase cost
Question 4: In operations research, linear programming assumes which type of relationship between variables in objective function and constraints?
a) Non-linear relationships b) Linear relationships c) Exponential relationships d) Logarithmic relationships
Question 5: In production planning, routing refers to which activity?
a) Scheduling tasks b) Determining sequence of operations c) Controlling quality d) Managing inventory
Question 6: In PERT analysis, the expected time for an activity is calculated using which formula?
a) (to + tm + tp)/3 b) (to + 4tm + tp)/6 c) (to + tp)/2 d) tm only
Question 7: In quality control, control charts are primarily used to monitor which aspect of process performance?
a) Product cost b) Production speed c) Process variation over time d) Worker efficiency
Question 8: In inventory management, safety stock is maintained to account for which uncertainty?
a) Fixed demand b) Demand and lead time variability c) Constant supply d) Zero lead time
Question 9: In work study, method study focuses primarily on improving which aspect of production?
a) Worker wages b) Machine cost c) Work methods and processes d) Inventory level
Question 10: In operations research, the feasible region in linear programming is defined as?
a) Region violating constraints b) Region satisfying all constraints c) Region of maximum profit only d) Region of minimum cost only
Question 11: In production scheduling, Gantt charts are used to represent which information?
a) Time schedule of tasks b) Cost analysis c) Quality inspection d) Inventory levels
Question 12: In inventory systems, ABC analysis classifies items based on which criterion?
a) Weight of items b) Volume of items c) Annual consumption value d) Shelf life
Question 13: In CPM network, the critical path is defined as the path which has?
a) Minimum duration b) Maximum slack c) Longest duration with zero slack d) Maximum cost
Question 14: In quality management, Six Sigma aims to reduce defects to which level?
a) 100 defects per million b) 10 defects per million c) 3.4 defects per million d) Zero defects
Question 15: In line balancing, the objective is to minimize which parameter in assembly line?
a) Production rate b) Idle time at workstations c) Number of workers d) Machine cost
Question 16: In inventory models with shortages allowed, the shortage cost represents?
a) Holding cost b) Ordering cost c) Cost due to stockouts or backorders d) Transportation cost
Question 17: In time study, allowances are added to normal time to obtain?
a) Observed time b) Idle time c) Standard time d) Delay time
Question 18: In operations research, the dual of a linear programming problem provides which information?
a) Only optimal solution b) Only constraints c) Economic interpretation and shadow prices d) Only objective function
Question 19: In production control, dispatching refers to?
a) Planning production b) Controlling quality c) Releasing work orders for execution d) Managing inventory
Question 20: In quality control charts, control limits are determined based on?
a) Customer requirements b) Machine capacity c) Process mean and variability d) Operator skill
Question 21: In inventory control, reorder point is defined as?
a) Inventory level triggering new order b) Maximum inventory level c) Minimum stock level only d) Safety stock only
Question 22: In project management, slack time of an activity represents?
a) Duration of activity b) Allowable delay without affecting project c) Cost of activity d) Resource requirement
Question 23: In production systems, batch production is characterized by?
a) Continuous production only b) Single product production c) Production in batches of similar items d) Fully automated production
Question 24: In operations research, transportation problem aims to minimize?
a) Production cost b) Inventory cost c) Transportation cost d) Labor cost
Question 25: In quality management, process capability index (Cp) measures?
a) Process mean b) Defect rate c) Capability relative to specification limits d) Production rate
Question 26: In time study involving multiple elements with varying performance ratings, the overall normal time for the job is obtained by?
a) Averaging all observed times b) Using highest observed time only c) Summing element-wise normal times d) Adding allowances directly to observed time
Question 27: In inventory control with probabilistic demand, the service level is primarily defined as?
a) Average inventory level b) Probability of meeting demand without stockout c) Total demand over time d) Reorder quantity
Question 28: In linear programming, degeneracy occurs when?
a) No feasible solution exists b) Objective function is unbounded c) Basic variables take zero value in solution d) All constraints are linear
Question 29: In production planning, aggregate planning primarily deals with which time horizon and decision level?
a) Medium-term planning at aggregate level b) Short-term scheduling only c) Long-term capacity expansion d) Real-time control
Question 30: In PERT analysis, variance of activity time is calculated using which expression?
a) (tp + to)/2 b) (tm - to)^2 c) (tp - tm)/6 d) ((tp - to)/6)^2
Question 31: In quality control, a process is said to be in statistical control when?
a) All products meet specifications b) No variation exists c) Only random causes of variation are present d) Process mean is zero
Question 32: In inventory models with quantity discounts, the optimal order quantity is determined by?
a) EOQ ignoring discounts b) Maximum order quantity c) Evaluating total cost at each price break d) Minimum demand level
Question 33: In method study, therbligs are used to analyze which aspect of work?
a) Machine operations b) Cost analysis c) Human motions in tasks d) Inventory flow
Question 34: In operations research, the assignment problem is a special case of which problem?
a) Linear programming b) Transportation problem c) Network flow problem d) Scheduling problem
Question 35: In production scheduling, sequencing rules like shortest processing time (SPT) aim to minimize which performance measure?
a) Maximum lateness b) Total cost c) Average flow time d) Machine idle time
Question 36: In quality management, process capability ratio Cp assumes which condition about process mean?
a) Mean varies randomly b) Mean is zero c) Process mean is centered between limits d) Mean equals standard deviation
Question 37: In inventory systems, periodic review model differs from continuous review model in terms of?
a) Demand type b) Timing of inventory review c) Lead time only d) Cost structure
Question 38: In CPM network analysis, float of an activity is defined as?
a) Duration of activity b) Cost of activity c) Resource usage d) Allowable delay without affecting project completion
Question 39: In line balancing problems, cycle time is defined as?
a) Time between completion of successive units b) Total production time c) Idle time only d) Machine setup time
Question 40: In operations research, slack variables are introduced to?
a) Increase constraints b) Reduce variables c) Convert inequalities into equations d) Eliminate objective function
Question 41: In production systems, job production is characterized by?
a) Mass production b) Continuous production c) Custom, low volume production d) Automated production
Question 42: In quality control, acceptance sampling is used for?
a) Process control b) Machine maintenance c) Scheduling tasks d) Deciding acceptance of lot based on sample
Question 43: In inventory management, lead time demand is defined as?
a) Total demand b) Average demand c) Demand during lead time d) Maximum demand
Question 44: In project management, crashing refers to?
a) Increasing project cost only b) Reducing project duration at extra cost c) Delaying activities d) Reducing resources
Question 45: In method study, flow process chart is used to represent?
a) Machine layout b) Worker wages c) Sequence of activities in process d) Inventory levels
Question 46: In operations research, unbounded solution occurs when?
a) No feasible region b) Multiple solutions c) Objective function can increase infinitely d) All constraints satisfied
Question 47: In production planning, scheduling determines?
a) Sequence of operations b) Timing of tasks and operations c) Inventory levels d) Machine design
Question 48: In quality management, Pareto analysis is based on which principle?
a) Random variation b) Linear relationship c) Equal distribution d) Vital few and trivial many principle
Question 49: In inventory control, holding cost includes?
a) Cost of storing and maintaining inventory b) Cost of ordering c) Cost of shortage d) Transportation cost
Question 50: In operations research, feasible solution that optimizes objective function is called?
a) Basic solution b) Infeasible solution c) Optimal solution d) Degenerate solution
Question 51: In time study, the term 'standard performance' corresponds to which rating level of a worker?
a) 80% performance b) 120% performance c) 100% performance d) 50% performance
Question 52: In inventory management under uncertain demand, the reorder point is primarily influenced by which two parameters?
a) Order quantity and holding cost b) Demand during lead time and safety stock c) Ordering cost and shortage cost d) Production rate and setup time
Question 53: In linear programming, a redundant constraint is one that?
a) Makes solution infeasible b) Changes optimal solution c) Creates degeneracy d) Does not affect feasible region or solution
Question 54: In production planning, capacity planning at strategic level focuses on?
a) Daily scheduling b) Weekly workforce allocation c) Long-term capacity expansion decisions d) Immediate dispatching
Question 55: In PERT network, the critical path variance is obtained by?
a) Summing variances of critical path activities b) Averaging all activity variances c) Taking maximum variance d) Ignoring variances
Question 56: In quality control, a point outside control limits on control chart indicates?
a) Process is stable b) Only random variation c) Presence of assignable cause d) Product meets specifications
Question 57: In inventory models, backordering implies which situation?
a) Excess inventory b) Immediate fulfillment of demand c) Delayed fulfillment of demand d) Zero demand
Question 58: In method study, the principle of motion economy suggests which action for tools?
a) Keep tools randomly b) Place tools near point of use c) Store tools far away d) Increase tool weight
Question 59: In operations research, sensitivity analysis is used to study?
a) Only optimal solution b) Only constraints c) Effect of changes in parameters on solution d) Only objective function
Question 60: In production systems, continuous production is best suited for?
a) Custom products b) Low volume items c) Batch production d) High volume standardized products
Question 61: In quality management, control limits differ from specification limits because?
a) Both are same b) Specification limits are statistical c) Control limits are process-based while specifications are customer-defined d) Control limits define product quality
Question 62: In inventory control, carrying cost is directly proportional to?
a) Average inventory level b) Order frequency c) Demand rate d) Lead time
Question 63: In CPM, an activity with zero total float is classified as?
a) Non-critical activity b) Critical activity c) Dummy activity d) Independent activity
Question 64: In operations research, shadow price represents?
a) Cost of product b) Selling price c) Value of additional resource unit d) Production cost
Question 65: In line balancing, bottleneck station is identified as?
a) Lowest workload station b) Idle station c) Average workload station d) Station with maximum workload
Question 66: In time study, snapback method of timing involves?
a) Continuous timing without reset b) Resetting stopwatch after each element c) Averaging times directly d) Ignoring delays
Question 67: In inventory systems, stockout cost includes?
a) Storage cost b) Ordering cost c) Cost due to unmet demand d) Transportation cost
Question 68: In operations research, simplex method moves from one solution to another by?
a) Random search b) Gradient descent c) Moving along edges of feasible region d) Exhaustive search
Question 69: In production planning, MRP system primarily deals with?
a) Material requirements planning b) Machine scheduling c) Quality control d) Cost accounting
Question 70: In quality control, histogram is used to show?
a) Process flow b) Control limits c) Cause-effect relationship d) Frequency distribution of data
Question 71: In CPM network, dummy activity is introduced to?
a) Increase duration b) Add resources c) Maintain logical relationships d) Reduce cost
Question 72: In inventory management, EOQ is independent of which parameter?
a) Demand rate b) Ordering cost c) Holding cost d) Unit purchase cost (without discount)
Question 73: In line balancing, efficiency of line is calculated as?
a) Total task time divided by (stations × cycle time) b) Cycle time divided by task time c) Idle time divided by total time d) Production rate only
Question 74: In operations research, feasible region of LP problem is always?
a) Non-convex b) Circular c) Convex d) Discrete
Question 75: In production systems, just-in-time (JIT) aims to?
a) Increase inventory b) Increase lead time c) Produce items only when needed d) Maximize stock
Question 76: In time study, the purpose of work sampling is to estimate which parameter in a production system?
a) Exact cycle time b) Machine speed c) Proportion of time spent on activities d) Tool wear rate
Question 77: In inventory control, the objective of minimizing total cost involves balancing which two opposing costs?
a) Ordering cost and holding cost b) Production and labor cost c) Transportation and setup cost d) Demand and supply cost
Question 78: In linear programming, if the objective function is parallel to a constraint boundary, the solution is?
a) Unique optimal solution b) Multiple optimal solutions c) Infeasible solution d) Unbounded solution
Question 79: In production planning, dispatching function is carried out after which stage?
a) Forecasting b) Capacity planning c) Routing and scheduling d) Quality inspection
Question 80: In PERT analysis, slack time of an event is calculated as?
a) Earliest time minus latest time b) Latest event time minus earliest event time c) Duration of event d) Total project time
Question 81: In quality control, cause and effect diagram is used to?
a) Measure variation b) Plot distribution c) Identify root causes of problem d) Calculate mean
Question 82: In inventory management, reorder level is influenced by which factor?
a) Holding cost only b) Ordering cost only c) Demand during lead time d) Machine efficiency
Question 83: In operations research, infeasible solution occurs when?
a) Infinite solutions exist b) Objective is unbounded c) Multiple solutions exist d) No solution satisfies all constraints
Question 84: In production systems, mass production is characterized by?
a) Custom products b) Low volume production c) High volume standardized production d) Job production
Question 85: In quality management, check sheets are used for?
a) Data analysis b) Data collection c) Process control d) Scheduling
Question 86: In inventory control, maximum inventory level is calculated considering?
a) Demand only b) Reorder level and order quantity c) Machine capacity d) Production rate
Question 87: In CPM, backward pass is used to determine?
a) Earliest start time b) Project duration c) Latest start and finish times d) Resource allocation
Question 88: In operations research, integer programming differs from linear programming because?
a) Non-linear objective b) Continuous variables only c) Decision variables must be integers d) No constraints
Question 89: In production planning, forecasting is used to estimate?
a) Past demand b) Machine efficiency c) Worker performance d) Future demand
Question 90: In quality control, scatter diagram is used to analyze?
a) Frequency distribution b) Process variation c) Relationship between two variables d) Control limits
Question 91: In inventory management, EOQ increases when?
a) Holding cost increases b) Demand rate increases c) Ordering cost decreases d) Lead time decreases
Question 92: In CPM network, forward pass determines?
a) Earliest start and finish times b) Latest start times c) Slack time d) Cost of project
Question 93: In operations research, feasible solution is?
a) Violates constraints b) Maximizes objective only c) Satisfies all constraints d) Minimizes cost only
Question 94: In production systems, flexibility refers to?
a) Production speed b) Cost reduction c) Ability to adapt to changes d) Inventory control
Question 95: In quality management, control chart for attributes includes?
a) X-bar chart b) R-chart c) p-chart d) S-chart
Question 96: In inventory control, safety stock is higher when?
a) Demand is constant b) Demand variability is high c) Lead time is zero d) Holding cost is low
Question 97: In project management, total float of critical activity is?
a) Maximum b) Negative c) Zero d) Infinite
Question 98: In operations research, graphical method is applicable to LP problems with?
a) More than two variables b) No constraints c) Infinite variables d) Two decision variables
Question 99: In production planning, sequencing determines?
a) Capacity planning b) Inventory level c) Order of processing jobs d) Cost control
Question 100: In quality management, ISO standards are related to?
a) Production rate b) Machine design c) Quality management systems d) Inventory control
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