7.4 Control measures

Written by Imran Qureshi (NEBOSH)

NEBOSH IGC · Workplace hazards · 15 questions

Name: ____________________   Date: ____________

1. Where exposure cannot be prevented, which should be used last?

   • A Ventilation
   • B Substitution
   • C PPE and RPE
   • D Enclosure

2. Local exhaust ventilation:

   • A Is a type of PPE
   • B Captures contaminants near the source
   • C Replaces all other controls
   • D Heats a room

3. Substances causing cancer, asthma or genetic damage need:

   • A Only warning signs
   • B Only PPE
   • C Additional controls
   • D No special controls

4. The first aim in controlling exposure to hazardous substances is to:

   • A Provide training only
   • B Prevent exposure
   • C Wait for symptoms
   • D Provide RPE

5. Replacing a hazardous solvent with a less hazardous one is called:

   • A Absorption
   • B Substitution
   • C Segregation
   • D Isolation

6. Enclosing a process that releases dust is an example of:

   • A Personal protective equipment
   • B A warning sign
   • C Health surveillance
   • D An engineering control

7. General ventilation works by:

   • A Capturing contaminants at source
   • B Removing the substance from the building permanently
   • C Filtering the worker's air supply
   • D Diluting contaminants in the air

8. Which is more effective for a dust source at a workbench?

   • A Opening a window only
   • B A longer shift
   • C Local exhaust ventilation
   • D A warning sign

9. Respiratory protective equipment should be:

   • A Used as a last resort after other controls
   • B The first control chosen
   • C Shared without cleaning
   • D Used instead of a risk assessment

10. Reducing the number of people exposed and the time they are exposed is:

    • A A substitution
    • B A legal requirement only
    • C A control that lowers the dose
    • D A health surveillance method

11. Good housekeeping and cleaning:

    • A Are only for visitors
    • B Reduce the build-up of contaminants
    • C Remove the need for RPE always
    • D Cause more exposure

12. Health surveillance for hazardous substances is used to:

    • A Replace controls
    • B Reduce the cost of PPE
    • C Remove the substance
    • D Detect early signs of harm

13. Substances causing asthma need extra controls because:

    • A They are never harmful
    • B They only affect the skin
    • C Sensitisation can occur from small exposures
    • D They are easy to measure

14. Hygiene facilities and procedures reduce:

    • A Vibration
    • B Radiation
    • C Ingestion and skin contact
    • D Noise

15. Storage and labelling contribute to control because they:

    • A Replace training
    • B Reduce visibility of the hazard
    • C Prevent mix-ups and show the hazards
    • D Increase exposure