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1. What is the name of the small repeat unit that is used to make the large complex molecules that form plastic materials:-
a)Copolymer
b)Homopolymer
c)Monomer
d)Polymer

2. Polymer Molecules could be described as:-
a)Much smaller than water molecules
b)Always linear
c)Spaghetti like in form
d)Unstable at low temperatures

3. The mechanical properties of bottles made using regrind material are likely to be:-
a)Improved
b)Unchanged
c)Superior
d)Poorer

4. Under similar running or test conditions which material MFI value would flow the easiest:-
a)MFI 7
b)MFI 8
c)MFI 2
d)MFI 1

5. Defective (or non-conforming) items must be:-
a)Clearly identified and segregated
b)Removed from the workplace immediately and scrapped
c)Marked with red labels
d)Re-inspected to confirm that they are defective

6. Material or product that does not meet the laid down quality specifications is defined as:-
a)Non-conforming
b)Invariable
c)Repairable
d)Scrap

7. The prime purpose of quality assurance is to:-
a)Identify non-conforming products
b)Maintain and analyse inspection records
c)Maintain product characteristics within specified limits
d)Investigate problems and prevent re-occurrence

8. The permissible variation in a Blow Moulded bottle weight is called the:-
a)Specification
b)Clearance
c)Allowance
d)Tolerance

9. The purpose of hopper cooling is:-
a)To prevent bridging in the hopper
b)To stop bridging and prevent overheating of the screw feed and thrust bearing
c)To stop the barrel overheating
d)To stop burn up’s in the hopper

10. Which instrument provides the most accurate from of temperature control:-
a)PID
b)2 Term
c)On / Off
d)Simmerstat

11. A thermocouple will:-
a)Control temperature
b)Adjust temperature
c)Measure temperature
d)Stabilise temperature

12. Mould opening and closing speeds are controlled by:-
a)Limit switches
b)Pressure relief valves
c)Flow valves
d)Proximity switches

13. Which of the four variables below could be used to improve the flow of a plastic material when extruding:-
a)Reducing screw speed
b)Reducing barrel temperatures
c)Increasing melt temperature
d)Increasing die land length

14. Bubbles in the surface of a blow moulded bottle can be caused by:-
a)Moisture in polymer feed stock
b)Slow screw speed
c)Excessive head pressure
d)A drop in melt temperature

15. The main reason for using hopper magnets is to:-
a)Trap large granules
b)Collect ferrous metal contamination
c)Collect brass or aluminium contamination
d)Prevent material bridging

16. Overloading of a granulator with scrap components could result in:-
a)Excessive dust
b)Oversize granules
c)Jamming of the rotor blades
d)Smaller granules

17. Which type of fire extinguisher would be the most effective on a die fire:-
a)Foam
b)Water
c)Carbon Dioxide (CO2)
d)Any of the above

18. What does SWL stand for:-
a)Secure weight limit
b)Safe working load
c)Safe weight load
d)Safe way to lift

19. Compressed air can be used to clean down ledges on processing machinery:-
a)As long as eye protection is worn
b)During plant shutdown maintenance activities
c)After the area has been cleared of all personnel
d)At no time

20. Historically the highest number of industrial accidents will occur through:-
a)Falling objects
b)Handling and lifting
c)Machinery
d)Trips and slips