Occupation: Derrick Operators, Oil and Gas
Task: Listen to mud pumps and check regularly for vibration and other problems to ensure that rig pumps and drilling mud systems are working properly.

Scale: Frequency of Task (Categories 1-7)
Category: 1
Value: 0 (N=72)
Source: Incumbent, 06/2006

Scale: Frequency of Task (Categories 1-7)
Category: 2
Value: 3.8 (N=72)
Source: Incumbent, 06/2006

Scale: Frequency of Task (Categories 1-7)
Category: 3
Value: 3.05 (N=72)
Source: Incumbent, 06/2006

Scale: Frequency of Task (Categories 1-7)
Category: 4
Value: 7.05 (N=72)
Source: Incumbent, 06/2006

Scale: Frequency of Task (Categories 1-7)
Category: 5
Value: 23.55 (N=72)
Source: Incumbent, 06/2006

Scale: Frequency of Task (Categories 1-7)
Category: 6
Value: 37.32 (N=72)
Source: Incumbent, 06/2006

Scale: Frequency of Task (Categories 1-7)
Category: 7
Value: 25.24 (N=72)
Source: Incumbent, 06/2006

Scale: Importance
Value: 4.36 (N=75)
Source: Incumbent, 06/2006

Scale: Relevance of Task
Value: 94.1 (N=80)
Source: Incumbent, 06/2006