Surface Areas of Underground Mines
Questions and Correct Answers (Verified
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1. What is the primary purpose of MSHA Part 48 task training?
A. To increase production quotas
B. To ensure miners can safely perform assigned tasks
C. To reduce equipment maintenance costs
D. To eliminate all workplace inspections
Rationale: Task training ensures that miners possess the knowledge
and practical skills necessary to safely perform a new or modified
work assignment. It focuses on hazard recognition, proper work
procedures, equipment operation, and emergency response specific to
the assigned task.
2. When is task training required for a miner?
,A. Only when hired for the first time
B. Every five years regardless of duties
C. Before performing a new task or operating unfamiliar equipment
D. Only after an accident occurs
Rationale: MSHA requires task training before miners perform new
work assignments, use unfamiliar equipment, or encounter new work
processes. Training must occur before exposure to associated hazards.
3. Which topic should always be included in task training?
A. Company financial reports
B. Employee vacation policies
C. Hazards associated with the assigned task
D. Marketing objectives
Rationale: Hazard recognition is the foundation of task training.
Miners must understand the risks specific to their assigned duties and
the methods used to control or eliminate those hazards.
4. A competent person conducting task training should:
A. Only read from the training manual
B. Demonstrate knowledge and experience with the task
C. Be the newest employee
D. Avoid answering trainee questions
,Rationale: Effective task trainers possess both knowledge and
practical experience. They must be capable of demonstrating proper
procedures, answering questions, and evaluating competency.
5. Before operating mobile equipment, a miner should first:
A. Wash the equipment
B. Complete required task training and demonstrate competency
C. Fuel the equipment without inspection
D. Increase engine speed immediately
Rationale: Operating heavy equipment without appropriate training
places both the operator and nearby workers at risk. Competency
must be demonstrated before independent operation.
6. Why is a pre-operational inspection important?
A. To improve paint appearance
B. To satisfy customer requests
C. To identify equipment defects before operation
D. To increase engine horsepower
Rationale: Pre-operational inspections identify hazards such as
damaged brakes, steering problems, leaking fluids, or defective safety
devices before equipment is placed into service.
7. Defective equipment should be:
, A. Operated carefully
B. Used until the shift ends
C. Repaired during operation
D. Removed from service until corrected
Rationale: Equipment with safety defects must not be operated.
Removing defective equipment from service helps prevent injuries and
equipment failures.
8. Before starting machinery, an operator should:
A. Honk continuously without looking
B. Increase throttle immediately
C. Ensure the area is clear of personnel
D. Disable warning devices
Rationale: Verifying that no one is in the danger zone before startup
prevents struck-by and caught-in injuries.
9. Seat belts on mobile equipment should be worn:
A. Only on public roads
B. Only during inspections
C. Only when traveling uphill
D. Whenever the equipment is operated