UNCC Microelectronics Clean Room
Safety Certification Test
Name: ______Student ID __XXXXXXXX___ Date: ______
Instructor: __Hudak______E-mail _____XXXXXXXX___ Class: ______
1) What document should you refer to when you have a question about a material?
a) Hazardous Data Sheet (HDS) b) Material Safety Data Sheet (MSDS) c) Safety Data Sheet (SDS) d) Material Data Sheet (MDS) e) Safety and Hazard Sheet (SAHD)
2) Where can this document be found?
a) Library b) Student Health Center c) Garment change room of clean room d) Bookstore e) Purchasing office
3) Clean room garments are provided for what reason?
a) So everyone looks uniform b) To distinguish the ECE students c) To keep your clothes from getting dirty d) To help cover your identity e) To prevent contamination in the clean room
4) What safety equipment must you know the location of prior to working in the clean room? a) Eye wash b) Safety shower c) Manual fire pull alarm d) First aid station e) All of the items listed
5) What number should you call in case of an emergency?
a) 311 b) campus safety office c) 911 d) Charlotte Fire Department e) Facilities management
6) Where is the nearest fire alarm located?
a) In the parking services building b) on the first floor of CARC c) In the lobby d) In the corridor at the top of the stairs near the clean room e) Next to the elevator
7) What does “DI” water stand for?
a) De-ionized b) Distilled c) Drinking d) Dangerous e) Dirty
8) What electrical safety procedure must be done to equipment before repair work can be carried out?
a) Disconnect the electrical supply b) Ground the equipment c) Turn the equipment off d) Check for static charges e) Remove the cover
9) How are compressed gas cylinders moved?
a) With the regulator attached b) With the valve unprotected c) With the regulator set to zero pressure d) With the regulator removed, the safety cap attached, and chained to a gas handling hand truck e) By rolling it into place.
10) Why can a compressed cylinder of nitrogen be dangerous?
a) It will make a lot of noise b) It can shoot off like a missile if the valve is broken and it can remove oxygen from a closed space because it is at a higher pressure c) The gas will burn if it gets too hot d) It will make the room very warm e) It can rust equipment
11) Why is liquid nitrogen dangerous?
a) It will make the floor slippery b) It will make the room hot c) It is not dangerous d) It is extremely cold and could force the oxygen from a closed space e) It can be used as a heat source
12) A beaker of a clear liquid is found in the clean room. What should be done with it?
a) Dump it down the drain b) Neutralize it c) Call the lab manager and he will take care of it d) Smell it to see if there is an aroma e) Take it outside and dump it.
13) What special protective equipment is required when handling hazardous materials?
a) Chemical gloves b) Eye protection c) Chemical safety apron d) Fume hood e) All of the items listed.
14) If a chemical gets into your eyes, what should you do?
a) Rinse your eyes in the eye wash b)Be sure to force the eyes open so the water can flush the eyes c) Notify the lab manager d) Seek medical treatment as necessary e) All of the items listed.
15) Why is it potentially dangerous to touch anything in a chemical hood without protective gloves?
a) Previous users may have left residual dangerous chemicals in and around the chemical hood b) The chemical hood may have dangerous chemicals on the valves on the front of the hood c) There may be dangerous chemical spills on the surface of the hood d) There may be dangerous chemicals on the glassware and apparatus e) All of the previous reasons
16) Why is it dangerous to mix chemicals without a specific formula or mix ratio?
a) They might react violently b) They might explode c) They might get very hot d) They might boil over the container they are in e) All of these
17) Why must solvents only be used under an exhausted hood?
a) They will burn your skin b)They can turn your skin yellow c) Their fumes should not be inhaled d) They will cause sneezing e) The can cause blisters on the skin
18) What will solvents do to your skin?
a) Cause surface burns b) Cause subsurface burns c) Turn your skin yellow d) Dry out the oils in your skin e) Turn your skin oily
19) Why must solvents be kept away from sources of heat?
a) They are highly flammable b) They become acidic when heated c) They become an oxidizer when heated d) They will turn a dark color when heated e) They are not effected by heat
20) Why is photoresist used in a room with “yellow” lights?
a) It is easier to see b) The yellow lights make it safe to use the photoresist and not expose it c) The photoresist will last longer d) The photoresist stays cooler in yellow light e) There is no reason for the yellow lights, they just look high tech.
21) What is the proper procedure for mixing acid and water?
a) Acid into water b) Acid and water together c) Water into the acid d) Never mix acid and water e) Acid then water then more acid,
22) Why must HF not be stored in glass containers?
a) It must not see light b) It will dissolve or etch glass c) Its strength will be reduced d) It may become neutralized in glass e) It will evaporate faster in a glass container
23) Why is HF more dangerous than other acids?
a) It smells very bad b) It will stain your skin c) It will dry out the skin d) It will cause subsurface burns that are very hard to neutralize e) It is hot at room temperature
24) Photoresist developer (NaOH) is of what class of chemical?
a) Acid b) Solvent c) Base d) Oxidizer e) Neutral Solution
25) What chemicals are you allowed to dispose of down the drain? a) Hydrogen Peroxide b) Solvents c) Photoresist d) Photoresist developer e) No chemicals are allowed down the drain