# Industrial Engineering Questions and Answers – Time Study

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

1. Which of the following equipment is not required for the time study?
a) Stopwatch
b) Time study board
c) Steel rule
d) Chair

Explanation: Chair is not the required equipment or apparatus for performing time study experiments.
The equipment required for time study experiments is – Stopwatch, micrometer, time study form, tachometer, time study board, pencil, slide rule or calculator, steel rule or measuring tape.

2. How many types of stopwatches are used in the time study?
a) One
b) Seven
c) Three
d) Four

Explanation: Three types of stopwatches are used in time study experiments. They are as follows:
i. Non-fly back stopwatch
ii. Fly back stopwatch
iii. Split hand type

3. What is the other name for the fly back stopwatch?
a) Split hand
b) Non-snap back
c) Snap back
d) Semi-split hand

Explanation: Snap back is the other name for the fly back stopwatch. This type of watch consumes less operating time. It uses a slide to stop and start and the winding knob to bring the hands to zero.

4) What is the formula to calculate normal time based on the observed time recorded using a stopwatch?
a) Normal time = Observed time × $$\frac {Performance \, level \, of \, the \, worker}{Standard \, performance \, level \, expected}$$
b) Normal time = Observed time × Performance level of the worker × Standard performance level
c) Normal time = Observed time + Performance level of the worker × Standard performance level
d) Normal time = Observed time – Performance level of the worker × Standard performance level

Explanation: The formula to calculate normal time from observed time is given as follows:
Normal time = Observed time × $$\frac {Performance \, level \, of \, the \, worker}{Standard \, performance \, level \, expected}$$
Observed time is the time recorded using stopwatch by a time study engineer. The standard performance level expected is also set by the time study engineer based the previously available data.

5. What is the normal time (in minutes) if the observed time for an element is 0.7 minute and the performance rating factor is 90%?
a) 0.05
b) 0.63
c) 0.36
d) 0.33

Explanation: Given,
Observed time = 0.7 minute
Rating factor = 90% = 0.9
Normal time = 0.7 * 0.9 = 0.63 minute.

6. Calculate the standard time (in minutes) when the normal time is 0.63 minute. Take all the allowances as 20% of the normal time.
a) 0.05
b) 0.57
c) 0.75
d) 0.55

Explanation: Given,
Normal time = 0.63 minute
Allowances = 20% of normal time
Standard time = 0.63 + 0.2 × 0.63 = 0.756 minutes.

7. Which of the following mathematical statement is correct about standard time?
a) Standard time = Normal time + Allowances
b) Standard time = Allowed time + Allowances
c) Standard time = Observed time + Allowances
d) Standard time = Normal time + Add policy allowances

Explanation: Standard time is the mathematical sum of the normal time and various other allowances namely, process allowance, rest and personal allowances, special allowances.
Note: All the allowances are in the units of time. It is not related in terms of money and finance.

8. What is also called as “element standard data”?
a) Macro data
b) Micro data
c) System data
d) Global data

Explanation: Macro data is also known as ‘element standard data’. It is a type of standard data used in time study to determine the standard time of a particular operation or process or activity. Macro data time values may be of several seconds.

9. What is the other name for micro data?
a) System data
b) Global data
c) Element standard data
d) Universal standard data

Explanation: Micro data is also known as universal standard data. It is a type of standard data that is used in time study analysis to determine the time of micro-motion elemental activities. The duration of the elements of operation is 0.1 second or even less.

10. Which of the following is an example of macro data?
a) Synthetic data
b) M-T-M system
c) Work factor system
d) Basic motion time

Explanation: Standard data is divided into two types:
i. Macro data
ii. Micro data
Example of macro data is synthetic data. Examples of micro data are M-T-M system, Work factor system etc. Applications of synthetic data are in time study of batch and job production work, machine shop work etc.

More MCQs on Time Study:

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