1. Which of the following is a measure of central tendency?
A. Range
B. Variance
C. Median
D. Standard deviation
Correct Answer: C
2. The difference between the highest and lowest value in a dataset is called:
A. Mean deviation
B. Standard deviation
C. Range
D. Coefficient of variation
Correct Answer: C
3. Which probability distribution describes the number of events occurring in a fixed interval of time or space?
A. Normal distribution
B. Poisson distribution
C. Student’s t distribution
D. Binomial distribution
Correct Answer: B
4. When population variance is unknown and sample size is small (<30), hypothesis testing uses:
A. z–test
B. t–test
C. chi-square test
D. F–test
Correct Answer: B
5. The coefficient of correlation ranges between:
A. 0 to +1
B. –1 to +1
C. 0 to +10
D. –10 to +10
Correct Answer: B
6. PERT analysis uses which type of time estimation?
A. Most likely time
B. Probabilistic time estimates
C. Deterministic time estimates
D. Linear time estimates
Correct Answer: B
7. EOQ (Economic Order Quantity) model attempts to:
A. Minimise labour time
B. Minimise fluctuation in demand
C. Minimise total ordering and carrying costs
D. Maximise storage capacity
Correct Answer: C
8. Which layout is suitable when product variety is high and production volume is low?
A. Process layout
B. Product layout
C. Fixed position layout
D. Cellular layout
Correct Answer: A
9. A chart showing order and completion time for jobs to be scheduled is:
A. Activity chart
B. Control chart
C. Gantt chart
D. Pareto chart
Correct Answer: C
10. Quality that is measured by statistical techniques is known as:
A. TQM
B. Quality function deployment
C. Statistical quality control
D. Lean quality control
Correct Answer: C
11. Six Sigma aims at limiting defects to:
A. 3.4 defects per million opportunities
B. 300 defects per million
C. 34 defects per thousand
D. Zero defects
Correct Answer: A
12. Which of the following is not a component of TQM philosophy?
A. Continuous improvement
B. Employee involvement
C. Customer focus
D. Increasing production speed
Correct Answer: D
13. ERP stands for:
A. Enterprise Realistic Planning
B. Enterprise Resource Planning
C. Enterprise Resource Programming
D. Enterprise Result Planning
Correct Answer: B
14. In queuing theory, the waiting line characteristics include:
A. Arrival pattern, Service pattern, Queue discipline
B. Production capacity, Layout design, Customer value
C. Demand level, Price, Marginal utility
D. Forecast accuracy and Break–even cost
Correct Answer: A
15. In transportation problems, the number of basic feasible solutions should be equal to:
A. m + n – 1
B. m × n
C. m + n
D. m – n
(where m = origin, n = destination)
Correct Answer: A