Self Assessment

1. Define “LEL”

a.    Lower Electric Level

b.    Lower Explosion Limit

c.    Lower Elasticity Limit

d.    None of the Above.

2.    Define: UEL

a.    Upper Electrical Level

b.    b. Upper Elasticity Level

c.    Upper Explosion Limit.

d.    None of the Above.


3.    Avoid Hazard From Aerosol Can by DOT.

a.    Throw The Pressurized Aerosol can on the floor.

b.    Squeeze the Pressurized Aerosol Can .

c.    Perform Hot Water Bath Test during the production

d.    None of the Above.

4. What is DOT?

a.    Department of Transportation

b.    Department of Truck

c.    Department of Trail

d.    None of the Above.


5. What Water Temperature Aerosol Cans to be tested?

a.    100 0F

b.     70° F

c.    130oF

d.    None of the Above.

6. The distance between Gas House and the Principal Main Building.

a.    15 Inches

b.    15 Feet

c.    5 Feet

d.    15 Meter

7. How the aerosol cans are carried between Two Buildings?

a.    Manually

b.    By Cart

c.    By Conveyor Belt

d.     None of the above.

8.    Why – there is separate Gas House to inject the Propellant/Gas?

a.    Not enough room in the Main Building.

b.    Protect Main Building

c.    Just^or Fun^

d.    None of the Above.


9.    Define TTV?

a.    Through The Valve

b.    Throw The Valve

c.    None of The Above.


10. The Propellant is used for aerosol products

a.    IPG

b.    DME

c.    FEA- 152a

d.    Compressed Air

e.      None of the Above.

11.   Prevent Static Spark employee and Management must wear

a.    Cotton Clothes

b.    Nylon Clothes

c.     Non Sparking Shoes

d.    Steel Plate on the Sole

e.    Safety Glasses

f.     Safety Glasses with Side Shield



12.    What is IPG?

a.    Liquid Produce Gas

b.    Liquid Prevent Gas

c.     Liquid Petroleum Gas

d.    None of the Above.

13.  The Vapor of LPG is:

a.    Heavier Then Air

b.    Lighter Then Air

c.     Does not have vapor.

d.    None of the Above.


14.    Exhaust System in Gas House

a.     Do not Need Fan – Exhaust System

b.    Exhaust System – Fan must be on the roof

c.     Exhaust System Fan must be on the side wall

d.    Exhaust System – Fan must Sweep the Floor – installed on the floor



15.   Exhaust Fan Stake must be

a.     10 feet above the roof level

b.    20 Feet above the roof level

c.    5 feet above the roof level

d.    None of the above.



16.    The propellant IPG used in aerosol can :

a.    Has bad odor

b.    Has yellowish color

c.    has no odor and no yellowish color

d.    None of the above.

17.   All the equipments used to fill and aerosolize are:

a.    Grounded

b.    Eliminate Grounding

c.    Grounded to Water Pipe

d.    Grounded to 8 ft. rod in the ground.

18.   Each Vapor has THREE important ranges of concentration in the air.

a.    Describe.

b.    Advantages and Disadvantages


19.   There are TWO types of Gas Detection equipments – Describe.

20.   Gas Detector routine Calibration:

a.    Every Day

b.    Once a week

c.    Once every six months

d.    Once every 12 months.

21.   Static Electricity is generated by

a.    Electrical Arc and Sparks

b.    Radio Signal

c.    Stray Current

d.     Electrical Motors.

e.    Friction Heat or Sparks

f.      Metal drops of Strike

g.    Metal Burst from Fatigue,

h.    Sparks from the Impact of Conveyors Belts.

i.      Particles or oiliness- pipe rust and dust
j. All the Above.

22.    Safety Protection Rules

a.    Must wear COTTON clothes

b.    Must wear shoes with rubber soles

c.    Must were safety glasses with side shield.

d.    Must use non-sparking tools.

e.    All the Above.

23.   Describe Aerosol manufacturing Process – step by step


24.   If the propellant is leaking – how to determine

a.    Frozen Pipe-or pipe joint area

b.    Hissing noise from pipe joint

c.    Dangerous cloud of Vapor & Freezing the pipe connection

d.    None of the Above.

25.    How to test leaking aerosol filled units.

a.    The filled units must pass through hot water bath

b.    Listen Hissing noise

c.    Put the filled units in Hot Oven

d.    None of the Above.

26. Hot water bath temperature to be maintained to achieve internal
temperature in the can at

a.                  130oF

b.                  100° F

c.               70oF

d.                  150oF


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