Dominate Your RT42 Crusher CPCS Blue Card Renewal: 117 Practice Questions and Answers 

 

1. What could happen if the proper safety steps are not followed before clearing a stalled crusher?

 

a) Improved crusher efficiency

b) Reduced risk of accidents and injuries

c) Increased material processing capacity

d) Increased risk of accidents and injuries, including fatalities

 

Correct Answer: d) Increased risk of accidents and injuries, including fatalities

 

2. Who typically conducts daily checks on a crusher?

  

a) Only designated crusher operators

b) Operators who have had additional training

c) All personnel on the construction site

d) Independent inspection teams

  

Correct Answer: b) Operators who have had additional training

 

3. What is the primary function of crushers in construction-related activities?

 

a) To transport materials

b) To create new materials

c) To recycle materials

d) To generate electricity

 

Correct Answer: c) To recycle materials

 

4. What are some potential impacts on people near crushing operations?

 

a) Increased access to quality building materials

b) Excessive noise and dust

c) Reduced traffic in the area

d) Improved air quality

 

Correct Answer: b) Excessive noise and dust

 

5. When can guarding be removed from a crusher?

 

a) At any time during operation

b) Only during lunch breaks

c) Only when operating personnel are present

d) Only during maintenance activities by trained personnel with isolated power supply

 

Correct Answer: d) Only during maintenance activities by trained personnel with isolated power supply

 

6. What is the potential danger of not isolating, clamping, or locking relevant components before maintenance work?

 

a) Improved safety for the maintenance personnel

b) Accidental activation of the crusher

c) Reduced crusher efficiency

d) Increased crusher maintenance costs

 

Correct Answer: b) Accidental activation of the crusher

 

7. Why is the area around a crushing operation considered a danger zone?

 

a) Because it is prone to earthquakes

b) Because it is always wet and slippery

c) Because objects can be ejected from the crusher or loading machine

d) Because it is a restricted area for unauthorized personnel

 

Correct Answer: c) Because objects can be ejected from the crusher or loading machine

 

8. What must be checked before entering any stalled crusher?

 

a) The crusher’s maintenance schedule

b) The operator’s qualifications

c) All rotating components are fully stopped and the feed and main conveyers are isolated

d) The availability of spare parts

 

Correct Answer: c) All rotating components are fully stopped and the feed and main conveyers are isolated

 

9. Why is the use of wedges for clearing bridged crushers considered unsafe?

 

a) Wedges are ineffective for this task

b) Wedges have a limited reach

c) Wedges have been ejected at high speed, causing injuries

d) Wedges are expensive to use

 

Correct Answer: c) Wedges have been ejected at high speed, causing injuries

 

10. What has happened to operators and supporting personnel in the past in relation to crushing operations?

 

a) They have been promoted to higher positions

b) They have been struck by objects ejected from the crusher or loading machine

c) They have received additional training

d) They have been given safety awards

 

Correct Answer: b) They have been struck by objects ejected from the crusher or loading machine

 

11. What is an essential consideration when planning a crushing operation?

 

a) The operator’s favorite color

b) The type of music to be played at the site

c) The type of materials to be processed

d) The local weather forecast

 

Correct Answer: c) The type of materials to be processed

 

12. What is one of the factors that a method statement for crushing operations should identify?

 

a) The operator’s personal preferences

b) The daily weather forecast

c) The sequence of work

d) The color of the crusher

 

Correct Answer: c) The sequence of work

 

13. What is meant by “bridged material”?

 

a) Material that has been processed by the crusher

b) Material that has been ejected from the crusher

c) Material that has become stuck and blocked the crusher

d) Material that is used to support the crusher’s structure

 

Correct Answer: c) Material that has become stuck and blocked the crusher

 

14. What are “processed materials”?

 

a) Materials that have been crushed and are ready for disposal

b) Materials that have not yet been crushed

c) Materials used to build the crusher

d) Materials that are not related to the crushing operation

 

Correct Answer: a) Materials that have been crushed and are ready for disposal

 

15. Why might certain parts of a crusher still move even with the power supply disconnected or stopped?

 

a) Due to the crusher’s age

b) Due to the effect of gravity or weight on specific moving components

c) Due to inadequate maintenance

d) Due to excessive dust accumulation

 

Correct Answer: b) Due to the effect of gravity or weight on specific moving components

 

 

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