BSIE Work Study & Methods Engineering 2 — Questions and Answers
Question 1: In motion economy principles, which of the following is recommended for efficient hand motions?
- Hands should begin and end motions at different times
- Both hands should begin and complete motions simultaneously (Correct answer)
- The dominant hand should do most of the work
- Straight-line motions are always preferred over curved motions
Correct answer: Both hands should begin and complete motions simultaneously
Principles of motion economy state that both hands should begin and complete motions simultaneously to maximize efficiency and balance workload.
Question 2: A flow process chart uses which symbol to represent an 'operation'?
- Arrow
- Circle (Correct answer)
- Square
- Triangle
Correct answer: Circle
In ASME flow process charts, a circle represents an operation — an activity that changes the physical or chemical characteristics of an item.
Question 3: Which of the following is a predetermined motion time system (PMTS)?
- PERT
- CPM
- MTM (Correct answer)
- MRP
Correct answer: MTM
Methods-Time Measurement (MTM) is a predetermined motion time system that assigns standard times to basic human motions without the need for stopwatch timing.
Question 4: In work measurement, the number of observations required in time study is primarily determined by:
- The worker's experience level
- The desired accuracy and confidence level (Correct answer)
- The type of equipment used
- The shift duration
Correct answer: The desired accuracy and confidence level
The sample size in time study is statistically determined based on the desired accuracy (precision) and confidence level to ensure reliable results.
Question 5: Which chart is most useful for analyzing the path of a worker's movement within a work area?
- Gantt chart
- String diagram (Correct answer)
- Pareto chart
- Control chart
Correct answer: String diagram
A string diagram uses a scaled layout drawing and string to trace and measure the actual path and distance traveled by a worker in a work area.
Question 6: Therblig symbols were developed by which industrial engineer?
- Frederick Taylor
- Henry Gantt
- Frank and Lillian Gilbreth (Correct answer)
- Elton Mayo
Correct answer: Frank and Lillian Gilbreth
Frank and Lillian Gilbreth developed therblig symbols (an anagram of Gilbreth) to classify and analyze fundamental human motions in work study.
Question 7: In method study, the critical examination technique uses which primary questioning sequence?
- What, Where, When, Who, How — and Why for each (Correct answer)
- Why, What, Where, When, Who, How
- How, Why, What, Who, When, Where
- Who, What, Why, How, Where, When
Correct answer: What, Where, When, Who, How — and Why for each
Critical examination asks What, Where, When, Who, and How for each activity, followed by 'Why' to challenge necessity and identify improvements.
BSIE Work Study & Methods Engineering 2
In motion economy principles, which of the following is recommended for efficient hand motions?