Inspectors should be great at:

• Estimating sizes, distances, and quantities; or determining time, costs, resources, or materials needed to perform a work activity.
• Observing, receiving, and otherwise obtaining information from all relevant sources.
• Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events.
• Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects.

Controllers are expected to be good at:

• Using either control mechanisms or direct physical activity to operate manufacturing systems.
• Working with hand operated industrial machines and power tools.
• Adjusting knobs, levers, and physical or touch sensitive buttons in industrial devices.
• Running, maneuvering, navigating, or driving vehicles or mechanized equipment, such as forklifts, passenger vehicles, aircraft, or watercraft.

• Regulating air pressure, rotary speed, and downward pressure, according to the types of rock or concrete being drilled.
• Verifying depths and alignments of boring positions.
• Monitoring drilling operations, checking gauges and listening to equipment for assessing drilling conditions and for determining the need for adjusting drilling or altering equipment.
• Starting, stopping, and controlling drilling speed of machines and insertion of casings into holes.
• Selecting the appropriate drills for the job, using knowledge of stone or soil conditions.
• Operating controls for stabilizing machines and for positioning and aligning drills.
• Selecting and attaching drilling bits and drilling rods, adding more rods as hole depths increasing, and changing the drill bits as needed.
• Drilling or boring holes in rock for blasting, grouting, anchoring, or building foundations.
• Operating machines for flushing earth cuttings or for blowing dust from holes.
• Driving or guiding truck mounted equipment into their positions, leveling and stabilize rigs, and extending telescoping derricks.