SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
Search
Test your basic knowledge |
Triz40 Principles
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 40 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Change an object's physical state (e.g. to a gas - liquid - or solid.) Change the concentration or consistency. Change the degree of flexibility. Change the temperature.
Preliminary action
Preliminary anti- action
Parameter changes
The other way round
2. Use an intermediary carrier article or intermediary process. Merge one object temporarily with another (which can be easily removed).
3. If it will be necessary to do an action with both harmful and useful effects - this action should be replaced with anti- actions to control harmful effects. Create beforehand stresses in an object that will oppose known undesirable working stresses l
Skipping
Pneumatics and hydraulics
Preliminary anti- action
Anti- weight
4. Instead of continuous action - use periodic or pulsating actions. If an action is already periodic - change the periodic magnitude or frequency. Use pauses between impulses to perform a different action.
Asymmetry
Dynamics
Preliminary action
Periodic action
5. Use harmful factors (particularly - harmful effects of the environment or surroundings) to achieve a positive effect. Eliminate the primary harmful action by adding it to another harmful action to resolve the problem. Amplify a harmful factor to such
Strong oxidants
Skipping
Taking out
Blessing in disguise or Turn Lemons into Lemonade
6. Prepare emergency means beforehand to compensate for the relatively low reliability of an object.
Merging
The other way round
Spheroidality - Curvature
Beforehand cushioning
7. Instead of an unavailable - expensive - fragile object - use simpler and inexpensive copies. Replace an object - or process with optical copies. If visible optical copies are already used - move to infrared or ultraviolet copies.
Self- service
Segmentation
Mechanical vibration
Copying
8. Replace an inexpensive object with a multiple of inexpensive objects - comprising certain qualities (such as service life - for instance).
Self- service
Cheap short- living objects
Color changes
Universality
9. Place one object inside another; place each object - in turn - inside the other. Make one part pass through a cavity in the other.
Nested doll
Self- service
Equipotentiality
'Intermediary'
10. Bring closer together (or merge) identical or similar objects - assemble identical or similar parts to perform parallel operations. Make operations contiguous or parallel; bring them together in time.
Blessing in disguise or Turn Lemons into Lemonade
Feedback
Merging
Segmentation
11. Change the shape of an object from symmetrical to asymmetrical. If an object is asymmetrical - increase its degree of asymmetry.
Nested doll
Asymmetry
Discarding and recovering
Mechanical vibration
12. Make an object serve itself by performing auxiliary helpful functions. Use waste resources - energy - or substances.
Asymmetry
Self- service
Mechanics substitution
Periodic action
13. Use phenomena occurring during phase transitions (e.g. volume changes - loss or absorption of heat - etc.).
Equipotentiality
Asymmetry
Pneumatics and hydraulics
Phase transitions
14. Use thermal expansion (or contraction) of materials. If thermal expansion is being used - use multiple materials with different coefficients of thermal expansion.
Pneumatics and hydraulics
Merging
Spheroidality - Curvature
Thermal expansion
15. Introduce feedback (referring back - cross - checking) to improve a process or action. If feedback is already used - change its magnitude or influence.
Mechanical vibration
Phase transitions
Feedback
Thermal expansion
16. Change an object's structure from uniform to non - uniform - change an external environment (or external influence) from uniform to non - uniform. Make each part of an object function in conditions most suitable for its operation. Make each part of a
Dynamics
Cheap short- living objects
Local quality
Composite materials
17. Make objects interacting with a given object of the same material (or material with identical properties).
Periodic action
Homogeneity
Segmentation
Skipping
18. Carry on work continuously; make all prts of an object work at full load - all the time. Eliminate all idle or intermittent actions or work.
Mechanics substitution
Homogeneity
Porous materials
Continuity of useful action
19. Change the color of an object or its external environment. Change the transparency of an object or its external environment.
Continuity of useful action
Preliminary action
Color changes
Strong oxidants
20. Cause an object to oscillate or vibrate. Increase its frequency (even up to the ultrasonic). Use an object's resonant frequency. Use piezoelectric vibrators instead of mechanical ones. Use combined ultrasonic and electromagnetic field oscillations.
Mechanical vibration
'Intermediary'
Homogeneity
Phase transitions
21. Make a part or object perform multiple functions; eliminate the need for other parts.
Phase transitions
Dynamics
Universality
Preliminary anti- action
22. Replace a mechanical means with a sensory (optical - acoustic - taste or smell) means. Use electric - magnetic and electromagnetic fields to interact with the object. Change from static to movable fields - from unstructured fields to those having str
Mechanics substitution
Feedback
Universality
Dynamics
23. Conduct a process - or certain stages (e.g. destructible - harmful or hazardous operations) at high speed.
Universality
Homogeneity
Skipping
Periodic action
24. Use gas and liquid parts of an object instead of solid parts (e.g. inflatable - filled with liquids - air cushion - hydrostatic - hydro- reactive).
Discarding and recovering
Copying
Preliminary anti- action
Pneumatics and hydraulics
25. Separate an interfering part or property from an object - or single out the only necessary part (or property) of an object.
Taking out
Another dimension
Feedback
Inert atmosphere
26. Make an object porous or add porous elements (inserts - coatings - etc.). If an object is already porous - use the pores to introduce a useful substance or function.
Pneumatics and hydraulics
Porous materials
Parameter changes
Segmentation
27. If 100 percent of an object is hard to achieve using a given solution method then - by using 'slightly less' or 'slightly more' of the same method - the problem may be considerably easier to solve.
Partial or excessive actions
Self- service
Asymmetry
Copying
28. In a potential field - limit position changes (e.g. change operating conditions to eliminate the need to raise or lower objects in a gravity field).
Cheap short- living objects
Strong oxidants
Preliminary anti- action
Equipotentiality
29. Perform - before it is needed - the required change of an object (either fully or partially). Pre- arrange objects such that they can come into action from the most convenient place and without losing time for their delivery.
Asymmetry
The other way round
Strong oxidants
Preliminary action
30. To move an object in two- or three- dimensional space. Use a multi- story arrangement of objects instead of a single- story arrangement. Tilt or re- orient the object - lay it on its side. Use 'another side' of a given area.
Periodic action
Another dimension
Anti- weight
Discarding and recovering
31. Replace common air with oxygen - enriched air. Replace enriched air with pure oxygen. Expose air or oxygen to ionizing radiation. Use ionized oxygen. Replace ozonized (or ionized) oxygen with ozone.
Strong oxidants
Nested doll
Cheap short- living objects
Periodic action
32. Make portions of an object that have fulfilled their functions go away (discard by dissolving - evaporating - etc.) or modify these directly during operation. Conversely - restore consumable parts of an object directly in operation.
Spheroidality - Curvature
Discarding and recovering
Asymmetry
Partial or excessive actions
33. Divide an object into independent parts. Make an object easy to disassemble. Increase the degree of fragmentation or segmentation.
Segmentation
Feedback
Pneumatics and hydraulics
Thermal expansion
34. Instead of using rectilinear parts - surfaces - or forms - use curvilinear ones; move from flat surfaces to spherical ones; from parts shaped as a cube (parallelepiped) to ball- shaped structures. Use rollers - balls - spirals - domes. Go from linear
Spheroidality - Curvature
Composite materials
Flexible shells and thin films
Dynamics
35. Invert the action(s) used to solve the problem (e.g. instead of cooling an object - heat it). Make movable parts (or the external environment) fixed - and fixed parts movable. Turn the object (or process) 'upside down'.
Inert atmosphere
Equipotentiality
Feedback
The other way round
36. Allow (or design) the characteristics of an object - external environment - or process to change to be optimal or to find an optimal operating condition. Divide an object into parts capable of movement relative to each other. If an object (or process
Periodic action
Segmentation
Dynamics
Blessing in disguise or Turn Lemons into Lemonade
37. Replace a normal environment with an inert one. Add neutral parts - or inert additives to an object.
Strong oxidants
Spheroidality - Curvature
Partial or excessive actions
Inert atmosphere
38. Change from uniform to composite (multiple) materials.
Self- service
Composite materials
Spheroidality - Curvature
Flexible shells and thin films
39. To compensate for the weight of an object - merge it with other objects that provide lift. To compensate for the weight of an object - make it interact with the environment (e.g. use aerodynamic - hydrodynamic - buoyancy and other forces).
Taking out
Anti- weight
Equipotentiality
Feedback
40. Use flexible shells and thin films instead of three dimensional structures. If an object is already porous - use the pores to introduce a useful substance or function.
Flexible shells and thin films
Anti- weight
Homogeneity
Strong oxidants