1. Which of the following is a detergent type remover?

Lipophilic emulsifier

Trichlorethylene

Hydrophilic remover

Water2. Which of the following is the least sensitive developer?

Dry powder

Aqueous soluble

Aqueous suspendable

Non-aqueous wet3. Non-aqueous wet developers are applied to the part surface by which of the following methods?

Spraying

Dipping

Flowing

All of the above4. Penetrants which have an emulsifier already in them referred to as?

Post emulsifiable

Solvent removable

Water washable

Lipophilic penetrant5. A good penetrant requires a surface tension which is?

High

Low

Fast

Slow6. Dry powder developers shall be applied to a ??? surface?

Dry

Wet

Warm

Slightly moist7. Which surface is not suitable for testing using the post emulsifiable method?

Smooth

Slightly warm

Rough

Finished machined8. Which penetrant system is best suited when checking for wide shallow flaws?

Water washable

Post emulsifiable

Solvent removable

Leak through9. Dual purpose penetrants are viewed under what light?

White light

Black light

White and black light

None of the above10. Which method of penetrant inspection is best suited for testing in remote areas?

Fluorescent solvent removable

Visible solvent removable

Visible water washable

Fluorescent post emulsifiable11. The mechanism which pulls a penetrant into a discontinuity is defined as?

Capillary action

Good surface tension

Low rentitivity

Good wettability12. Which penetrant method is considered to be the most sensitive?

Visible solvent removable

Fluorescent water washable

Visible post emulsifiable

Fluorescent post emulsifiable13. The emulsification time is calculated by which of the following methods?

Using half of the dwell time

Using a quarter of the dwell time

Trial and error

Emulsification should always be for two minutes14. When using water washable fluroescent penetrant after the water wash stage the component should then be?

Dried

Viewed under black light

Developed

Emulsified15. When is it possible to detect slightly sub-surface defects using penetrant testing?

Only if you are using fluroscent penetrants

When using post emulsifiable penetrants

It is not possible to detect slightly sub-surface defects using penetrant testing

When using dual sensitivity penetrants16. Which of the following is a method of applying dry powder developer?

Electrostatic spray

Dipping

Dust storm cabinet

All of the above methods of application17. Which of the following is a method of applying penetrant?

Spraying

Dipping

Brushing

All of the above are methods18. What problem is overcome by using the post emulsifiable penetrant method?

Overwashing

Long dwell time

Short dwell times

Penetrant drying within faults19. The time which the penetrant is allowed to soak on teh surface of a component is commonly referred to as the?

Development time

Emulsification time

Dwell time

Inspection time20. If testing a high number of small components which of the following penetrant processes would be least suitable?

Water washable

Solvent removable

Post emulsifiable

Dual sensitivity

Here are the corrections:

1. Hydrophilic remover2. Dry powder3. Spraying4. Water washable5. Low6. Dry7. Rough8. Post emulsifiable9. White and black light10. Visible solvent removable11. Capillary action12. Fluorescent post emulsifiable13. Trial and error14. Viewed under black light15. It is not possible to detect slightly sub-surface defects using penetrant testing16. All of the above methods of application17. All of the above are methods18. Overwashing19. Dwell time20. Solvent removable