MEOC Technology & Digital Tools 2

Question 1

What does a GNSS-based grade control system use to determine the bucket's position on a mini excavator?

Accepted Answer

Satellite signals combined with inertial measurement units

Answer

GNSS grade control combines satellite positioning with IMUs to calculate real-time bucket position in 3D space.

Question 2

A telematics report shows abnormally high idle hours for a mini excavator. What is the most likely operational issue this indicates?

Accepted Answer

Engine running while the machine is not actively digging

Answer

High idle hours mean the engine runs without productive work, increasing fuel costs and engine wear.

Question 3

When using a 3D machine control system, what file format is most commonly used to upload design data to the excavator's in-cab display?

Accepted Answer

DXF or LandXML

Answer

DXF and LandXML are industry-standard formats for transferring terrain and design surface data to grade control systems.

Question 4

Which sensor type is typically used in an automatic swing alarm system to detect workers in the excavator's swing radius?

Accepted Answer

Radar, ultrasonic, or camera-based proximity sensors

Answer

Modern swing alarm systems use radar, ultrasonic, or camera AI to detect personnel within the danger zone.

Question 5

What is the purpose of the DTC (Diagnostic Trouble Code) readout on a mini excavator's digital display?

Accepted Answer

Identifies specific faults or malfunctions within electronic systems

Answer

DTCs are alphanumeric codes that pinpoint which system or component has triggered a fault condition.

(MEOC) Mini Excavator Operator Certification Practice Test