# Industrial Engineering Questions and Answers – Time Study – Set 2

This set of Industrial Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Time Study – Set 2”.

1. What does PMTS stand for?
a) Predetermined motion time standards
b) Predetermined motion time systems
c) Predetermined micro time systems
d) Predetermined macro time systems

Explanation: PMTS stands for predetermined motion time systems, a work measurement technique.
It is used to determine the standard time for a job at the desired level of performance based on the basic human motions.

2. Which of the following is not a method of PMTS?
a) M-T-M system
b) Work factor system
c) Critical path method
d) Motion time analysis

Explanation: Critical path method is a network diagram consists of activities and/or events with start time and end time. It is used to find the critical path and time to complete a given project. PMTS is a technique used in time study to determine the standard operating time of a given job or activity or operation or a process.

3. What does TMU stand for in the M-T-M method?
a) Time measurement unit
b) Time method unit
c) Time management methods
d) Technique modification unit

Explanation: TMU stands for Time measurement unit. It is a time unit used in the tables in M-T-M system. One TMU is equal to 0.00001 hour. One TMU is equal to 0.0006 minute. M-T-M method is one of the work measurement techniques under PMTS.

4. How many time units in work factor system are equal to one minute?
a) 10000
b) 1000
c) 10011
d) 10101

Explanation: In the work factor system,
1 time unit = 0.0001 minutes
Multiply with 10000 on both sides, we get,
10000 time units = 1 minute

5. When was the work factor system developed?
a) 1956
b) 1965
c) 1934
d) 1943

Explanation: The work factor system was developed in the year 1934. It is developed at Philadelphia. J.H. Quick and W.J. Shea are the most important contributors in the development of the work factor system.

6. How many TMU’s in MTM system are equal to one minute?
a) 1676
b) 1776
c) 1667
d) 1767

Explanation: In MTM system, 1 TMU = 0.0006 minutes
By multiplying with 10000 on both sides,
10000 TMU = 6 minutes
Then,
1 minute = 10000/6 = 1667 TMU (approx.)

7. Which of the following is not an example of macro data?
a) Basic human motions
b) Switch off the system
c) Assemble the components
d) Pick up a screwdriver

Explanation: Basic human motions are the micro elemental activities performed by a human which are described with the help of therbligs. The duration of these elements is 0.1 second or even less. Hence it is an example of micro data. Macro data involves elements that take several seconds for completing an operation.

8. What is the abbreviation of M-T-M in the M-T-M system?
a) Method time measurement
b) Manual time measurement
c) Motion time measurement
d) Motion time method

Explanation: M-T-M stands for method time measurement. It is one of the techniques established under PMTS to determine the normal time of a given job. It uses the predetermined values defined in the tables for each elemental motions and sums up all to get the normal time.

9. Which of the following requires a stopwatch?
a) Predetermined motion time systems(PMTS)
b) Synthesis
c) Analytical Estimating
d) Work sampling

Explanation: Work sampling requires stopwatch to record the time observed by the time study engineer during the job operation at different times in a day randomly. PMTS, Synthesis, Analytical estimating are the work measurement techniques that do not require a stopwatch to record the time. These techniques use previous time study data and various other established standard time values for tables.

10. Which of the following work measurement is suitable for long and irregular work cycles?
a) Stopwatch method
b) M-T-M system
c) Work factor system
d) Work sampling

Explanation: Work sampling which is one of the work measurement techniques is suitable for time study experiments for long and irregular work cycles and long time taking jobs. Observations are made randomly and using the theory of probability and statistics, normal time is calculated.

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