A Worker Was Observed for Four Cycles in a Repetitive

question 44

Multiple Choice

A worker was observed for four cycles in a repetitive task. The observer recorded the following times, in seconds, using the continuous method. The ratings for each element and frequency it is performed are also indicated in the table. The allowance fraction is 20 percent.
$$\begin{array} { | c | c | c | c | c | c | c | } \hline \text { Element } & \text { Cycle 1 } & \text { Cycle 2 } & \text { Cycle 3 } & \text { Cycle 4 } & \text { Rating } & \text { Frequency } \\\hline \mathbf { 1 } & 15 & 106 & 208 & 309 & 1.10 & 1.0 \\\hline \mathbf { 2 } & 37 & 131 & 234 & 334 & 1.05 & 0.5 \\\hline \mathbf { 3 } & 47 & 143 & 245 & 348 & 1.20 & 0.5 \\\hline \mathbf { 4 } & 90 & 190 & 293 & 392 & 1.15 & 1.0 \\\hline\end{array}$$
-Use the information in Table H.3.What is the select time for work element 4?

• A) Fewer than 40 seconds
• B) Greater than or equal to 40 seconds but fewer than 60 seconds
• C) Greater than or equal to 60 seconds but fewer than or equal to 80 seconds
• D) Greater than or equal to 80 seconds

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Definitions:

Divergent Margin

A boundary between two tectonic plates that are moving away from each other, often associated with volcanic activity and seafloor spreading.

Island Arc

A curved chain of volcanic islands located at a tectonic plate boundary, formed by the subduction of an oceanic plate beneath another.

Gabbro

A coarse-grained igneous rock that forms from the slow cooling of magma beneath the Earth's surface, composed mainly of plagioclase feldspar and pyroxene.

Welded Rhyolite

Is a type of volcanic rock that has been superheated and compacted under extreme conditions, resulting in a dense, hard rock.