27 Industrial Engineering questions from the Mechanical Core bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.
Free to start: the 2-minute ME readiness check — six questions and a result.
A.work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
B.network schedule technique in which the longest chain of zero-float activities fixes the project duration
C.output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
D.sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
Answer + AI explanation with Pro
2. Which term means: "work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time"?
Junior
A.Time study
B.Assembly line balancing
C.Break-even point
D.Johnson's rule
Answer + AI explanation with Pro
3. Which statement is correct?
Junior
A.Time study — work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
B.Time study — sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
C.Time study — normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives
D.Time study — unit time falls by a fixed percentage each time cumulative output doubles, an 80% curve meaning 20% reduction per doubling
Answer + AI explanation with Pro
4. What is Standard time?
Junior
A.average work-in-process equals throughput rate times average lead time for any stable process
B.order size √(2DS/H) that minimises the sum of annual ordering and holding costs
C.normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives
D.work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
Answer + AI explanation with Pro
5. Which term means: "normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives"?
Junior
A.Learning curve
B.Economic order quantity
C.Little's law
D.Standard time
Answer + AI explanation with Pro
6. Which statement is correct?
Junior
A.Standard time — assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
B.Standard time — sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
C.Standard time — normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives
D.Standard time — output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
Answer + AI explanation with Pro
7. What is Economic order quantity?
Junior
A.output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
B.order size √(2DS/H) that minimises the sum of annual ordering and holding costs
C.average work-in-process equals throughput rate times average lead time for any stable process
D.sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
Answer + AI explanation with Pro
8. Which term means: "order size √(2DS/H) that minimises the sum of annual ordering and holding costs"?
Junior
A.Assembly line balancing
B.Time study
C.Break-even point
D.Economic order quantity
Answer + AI explanation with Pro
9. Which statement is correct?
Junior
A.Economic order quantity — order size √(2DS/H) that minimises the sum of annual ordering and holding costs
B.Economic order quantity — work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
C.Economic order quantity — assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
D.Economic order quantity — normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives
Answer + AI explanation with Pro
10. What is Johnson's rule?
Mid
A.unit time falls by a fixed percentage each time cumulative output doubles, an 80% curve meaning 20% reduction per doubling
B.assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
C.sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
D.average work-in-process equals throughput rate times average lead time for any stable process
Answer + AI explanation with Pro
11. Which term means: "sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last"?
Mid
A.Little's law
B.Critical path method
C.Time study
D.Johnson's rule
Answer + AI explanation with Pro
12. Which statement is correct?
Mid
A.Johnson's rule — normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives
B.Johnson's rule — sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
C.Johnson's rule — average work-in-process equals throughput rate times average lead time for any stable process
D.Johnson's rule — assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
Answer + AI explanation with Pro
13. What is Break-even point?
Mid
A.network schedule technique in which the longest chain of zero-float activities fixes the project duration
B.output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
C.average work-in-process equals throughput rate times average lead time for any stable process
D.normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives
Answer + AI explanation with Pro
14. Which term means: "output at which total revenue equals total cost, found as fixed cost divided by contribution per unit"?
Mid
A.Standard time
B.Economic order quantity
C.Little's law
D.Break-even point
Answer + AI explanation with Pro
15. Which statement is correct?
Mid
A.Break-even point — network schedule technique in which the longest chain of zero-float activities fixes the project duration
B.Break-even point — work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
C.Break-even point — order size √(2DS/H) that minimises the sum of annual ordering and holding costs
D.Break-even point — output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
Answer + AI explanation with Pro
16. What is Learning curve?
Mid
A.output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
B.work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
C.sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
D.unit time falls by a fixed percentage each time cumulative output doubles, an 80% curve meaning 20% reduction per doubling
Answer + AI explanation with Pro
17. Which term means: "unit time falls by a fixed percentage each time cumulative output doubles, an 80% curve meaning 20% reduction per doubling"?
Mid
A.Break-even point
B.Time study
C.Learning curve
D.Johnson's rule
Answer + AI explanation with Pro
18. Which statement is correct?
Mid
A.Learning curve — work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
B.Learning curve — output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
C.Learning curve — average work-in-process equals throughput rate times average lead time for any stable process
D.Learning curve — unit time falls by a fixed percentage each time cumulative output doubles, an 80% curve meaning 20% reduction per doubling
Answer + AI explanation with Pro
19. What is Assembly line balancing?
Mid
A.sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
B.network schedule technique in which the longest chain of zero-float activities fixes the project duration
C.average work-in-process equals throughput rate times average lead time for any stable process
D.assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
Answer + AI explanation with Pro
20. Which term means: "assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised"?
Mid
A.Little's law
B.Assembly line balancing
C.Critical path method
D.Economic order quantity
Answer + AI explanation with Pro
21. Which statement is correct?
Mid
A.Assembly line balancing — output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
B.Assembly line balancing — network schedule technique in which the longest chain of zero-float activities fixes the project duration
C.Assembly line balancing — work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
D.Assembly line balancing — assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
Answer + AI explanation with Pro
22. What is Critical path method?
Senior
A.network schedule technique in which the longest chain of zero-float activities fixes the project duration
B.assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
C.average work-in-process equals throughput rate times average lead time for any stable process
D.sequencing n jobs on two machines to minimise makespan by placing shortest first-machine times first and shortest second-machine times last
Answer + AI explanation with Pro
23. Which term means: "network schedule technique in which the longest chain of zero-float activities fixes the project duration"?
Senior
A.Critical path method
B.Time study
C.Break-even point
D.Assembly line balancing
Answer + AI explanation with Pro
24. Which statement is correct?
Senior
A.Critical path method — assigning tasks to workstations so that each station time is close to the takt time and total idle time is minimised
B.Critical path method — work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
C.Critical path method — network schedule technique in which the longest chain of zero-float activities fixes the project duration
D.Critical path method — order size √(2DS/H) that minimises the sum of annual ordering and holding costs
Answer + AI explanation with Pro
25. What is Little's law?
Senior
A.work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
B.order size √(2DS/H) that minimises the sum of annual ordering and holding costs
C.output at which total revenue equals total cost, found as fixed cost divided by contribution per unit
D.average work-in-process equals throughput rate times average lead time for any stable process
Answer + AI explanation with Pro
26. Which term means: "average work-in-process equals throughput rate times average lead time for any stable process"?
Senior
A.Little's law
B.Standard time
C.Break-even point
D.Johnson's rule
Answer + AI explanation with Pro
27. Which statement is correct?
Senior
A.Little's law — order size √(2DS/H) that minimises the sum of annual ordering and holding costs
B.Little's law — normal time plus allowances for fatigue, personal needs and unavoidable delays, used to set targets and incentives
C.Little's law — average work-in-process equals throughput rate times average lead time for any stable process
D.Little's law — work measurement by stopwatch timing of an operation, rated for pace and given allowances to obtain the standard time
Answer + AI explanation with Pro
Free to start
Start with a free readiness check
Sign up free for the 2-minute ME readiness check and a scored result. Answers, explanations and the AI tutor on every Industrial Engineering question come with Pro.