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TAFE > so you forgot about your PBT test until the night before > Flashcards

so you forgot about your PBT test until the night before Flashcards

1
Q

What is the ratio of soil to water for a soil sample?

A

1 part soil to 5 parts water

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2
Q

Who do you consult when you’re not sure of something?

A

SUPERVISOR

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3
Q

What kind of test do you conduct to see how many ions are in a solution?

A

Conductivity

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4
Q

What should be on a label?

A

Sample ID
Dilution factor
Matrix
Date
Time
Initials
Storage
Hazards

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5
Q

How long can a sample be stored when it’s being tested for pH

A

must be tested within 2 hours

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6
Q

What are some examples of effective communication?

A

Speaking clearly
Listening actively
Seeking clarification

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7
Q

What are some benefits of teamwork?

A

Dividing work
Planning work
Completing work more quickly

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8
Q

Who is responsible for the safety of all employees?

A

Everyone

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9
Q

What is the acceptable range of error for pH when calibrating?

A

+- 0.05 pH units

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10
Q

What is the acceptable range of error for conductivity when calibrating?

A

+-5%

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11
Q

What is the acceptable range of error for a top pan balance when calibrating?

A

+-0.1g

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12
Q

What is the acceptable range of error for an analytical balance when calibrating?

A

+-0.001g

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13
Q

How to clean general glassware?

A

Remove any ink with acetone, rinse 2-3 times in warm water with soap, rinse with tap water, rinse with DI water, hang up to dry.

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14
Q

How to clean volumetric glassware?

A

Rinse with tap water. Rinse with DI water. Hang up to dry.
Pipettes and flasks should be put upside down to try.

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15
Q

Maximum storage time for conductivity testing?

A

28 days

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16
Q

What would you do if sample is potentially hazardous?

A

Consult SDS

17
Q

How would you resolve a disagreement between yourself and a colleague?

A

Try and resolve it with the colleague
Ask another colleague or unrelated 3rd party to help mediate (outside of working hours if possible)
Consult management if necessary

18
Q

Client wants sample turned around faster than possible

A

Inform them of this, offer to check how far along their sample is and give an ETA if they press, consult supervisor if they press further

19
Q

What is the uncertainty of measurement on an analytical balance

A

0.00005g
(5 zeroes)

20
Q

What is the uncertainty of measurement on a top pan balance?

A

0.005g
(2 zeroes)

21
Q

How to convert nitrate to nitrate-nitrogen?

A

/4.4

More words gets divided

22
Q

5 safety issues in the laboratory

A

1) Broken glassware
2) Slips trips falls
3) Handling hazardous chemicals (follow SOP)
4) Chemical splashes - use ppe
5) chemical aerosols - use fume hood

TAFE (4 decks)

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