Learn the proper hand signals for stopping crane operations, including the standard “stop” signal and emergency stop procedures, as outlined by NCCCO certification standards.
Table of Contents
Question
What does the “stop” hand signal involve?
A. Extending one arm horizontally with the palm facing downward.
B. Raising both arms above the head.
C. Extending one arm vertically with the palm facing downward and waving.
D. Crossing both arms in front of the body.
Answer
A. Extending one arm horizontally with the palm facing downward.
Explanation
This universally recognized signal indicates an immediate stop in crane operations.
Crane Stop Hand Signals: Standard and Emergency Procedures
This is the standard hand signal for stopping crane operations according to NCCCO guidelines and OSHA regulations. Here’s a detailed explanation of crane stop signals:
Standard Stop Signal
To signal a stop during crane operations:
- Extend one arm horizontally to the side
- Face the palm downward
- Swing the arm back and forth
Emergency Stop Signal
For emergency situations requiring an immediate halt:
- Extend both arms horizontally to the sides
- Face palms downward
- Swing both arms back and forth
Additional Stop Signals
- Dog Everything: To pause all operations, clasp hands together at waist level
It’s crucial for all crane operators and signal persons to be familiar with these standardized signals to ensure clear communication and maintain safety on construction sites. These signals are part of the NCCCO certification exam and are essential knowledge for anyone involved in crane operations.
Remember, hand signals must be given clearly and precisely, with the standard stop signal involving at least one back-and-forth arm movement. Always prioritize safety and maintain constant communication between the operator and signal person during crane operations.
NCCCO (National Commission for the Certification of Crane Operators) certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the NCCCO (National Commission for the Certification of Crane Operators) exam and earn NCCCO (National Commission for the Certification of Crane Operators) certification.