STATIC PROTECTIVE FIBC - Knowledge Test

About the test

This questionnaire is meant to assess the knowledge and understanding of IEC 61340-4-4 standard and its implications on selecting the appropriate FIBC type. Before taking the test, we recommend that you attend the Webinar “Introduction of IEC 81340-4-4, static protective FIBC and implication across FIBC supply chain”.

The test consists of 30 questions, a minimum of 21 correct answers is required to successfully complete the test. Pls. note that more than one answer may be correct. At the end of the test, when result is positive and upon attending the webinar you will receive a completion confirmation of “Static Protective FIBCs Expert”

Static Protective FIBC - Knowledge Test

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Question 1:*
Which packaging types are included in the scope of the IEC standard?
- FIBC
- Inner liners
- FIBC + Inner liners
Question 2:*
According to the IEC standard, which FIBC Types must have a separate label for electrostatic properties?
- Type A, B, C, D
- Type B, C, D
- Type C, D
Question 3:*
The IEC standard requires grounding of all conductive objects including personnel, for which FIBC Types is this rule applicable?
- Type A, B, C, D
- Type B, C, D
- Type C, D
- Type D only
Question 4:*
Which option is not qualified for Type C classification?
- Uncoated fabric
- Inside coated fabric
- Outside coated fabric
- Double coated fabric
Question 5:*
What is the requirement for Type B FIBC?
- Breakdown voltage of more than 6 kV
- Breakdown voltage of less than 4 kV
- Breakdown voltage of less than 6 kV
- Surface resistivity of less than 10¹² Ohm
Question 6:*
What are the requirements for Type C FIBC?
- Resistance to groundable point shall be less than 10⁸ Ohm + the breakdown voltage of the fabric shall be less than 6 kV
- Resistance to groundable point shall be less than 10⁷ Ohm + the breakdown voltage of the fabric shall be less than 4 kV
- Resistance to groundable point shall be between 10⁷ Ohm and 10⁹ Ohm+ the breakdown voltage of the fabric shall be less than 6 kV
- Breakdown voltage of the fabric less than 6 kV and no ignition at ignition testing according to IEC 61340-4-4
- The inside or outside surface of the FIBC shall have a resistance to groundable point of less than 1,0 x 10⁸ Ω
Question 7:*
What are the requirements for Type D FIBC?
- Breakdown voltage less than 6 kV and no ignition at ignition testing according to IEC Standard
- Breakdown voltage less than 4 kV and no ignition at ignition testing according to IEC Standard
- Breakdown voltage less than 6 kV and surface resistivity of less than 10¹² Ohm
- Entire FIBC shall be made of dissipative material
Question 8:*
How do you ensure that all parts of a type C are interconnected?
- Ensure that all parts of FIBC stitched together in a way that uncoated sides are connected face to face
- Ensure that all parts of FIBC stitched together in a way that coated sides are connected face to face
- Ensure that grounding tabs are stitched to two opposite side of the bag.
- Ensure that at least two conductive films are stitched to filling and discharge spout.
Question 9:*
Which of following statements are correct?
- FIBC types B,C,D shall be grounded during operation
- Type C FIBC shall be grounded during operation
- There is no need for groundling of type C FIBC in non-flammable atmosphere
Question 10:*
Which liner is compatible with Type B FIBC, according to IEC standard?
- Any liner, there is no limitation for this FIBC Type
- Only liner meeting L2 classification
- Liner meeting either L2 or L3 classification
- Liner meeting either L1 or L2 classification
Question 11:*
Which liner is compatible with Type C FIBC according to IEC standard?
- Any liner, there is no limitation for this FIBC Type
- Only liner meeting L2 classification
- Liner meeting either L2 or L3 classification
- Liner meeting either L1, L1C or L2 classification
Question 12:*
Which liner is compatible with Type D FIBC according to IEC standard?
- Any liner, there is no limitation for this FIBC Type
- Only liner meeting L2 classification
- Liner meeting either L2 or L3 classification
- Liner meeting either L1 or L2 classification
Question 13:*
Which liner is compatible with Type A FIBC according to IEC standard?
- Standard PE Liner
- Any Liner type according IEC standard
- Liner meeting either L2 or L3 classification
- Liner meeting either L1 or L1C classification
Question 14:*
Which construction of Type C big bag cannot be used for food application? Select all applicable answers
- Coated fabric without liner
- Coated fabric with liner
- Uncoated fabric without liner
- Uncoated fabric with liner
- Formstable – fabric baffles
- Formstable – net baffles
Question 15:*
Which design is not compliant according to IEC standard?
- Type C with net baffles
- Type B with antistatic liner
- Type B with conductive liner
- Type D with standard LDPE liner
Question 16:*
Which of these statements related to multi-layer liner is correct?
- The electrical properties of the outside surface of a single layer or multi-layer inner liner can be the same as the inside surface
- Type L1C inner liners are made from multi-layered antistatic materials
- Materials with surface resistivity less than 1,0 × 10⁸ Ω shall not be used in any layer within Type L2 inner liners
- Type L3 inner liners are made from materials with surface resistivity of greater than 1,0 x 10¹² Ω and the breakdown voltage of less than 4 kV
Question 17:*
Which of following statements are correct?
- A type A FIBC can be used in Dust zone 21-22 for a product with MIE of more than 1000 mJ
- A type A FIBC can be used only in non-flammable atmosphere for products with MIE of less than 1000 mJ
- A type A FIBC can be used only in non-flammable atmosphere for products with MIE of more than 1000 mJ
Question 18:*
Which of following statements are correct?
- A type B FIBC can be used in all zones if the MIE of product is more than 1000 mJ
- A type B FIBC can be used in dust zones 21-22 for products with MIE of less than 3 mJ
- A type B FIBC can be used in dust zones 21-22 for products with MIE of higher than 3 mJ
Question 19:*
Which of following statements are correct?
- Type C FIBC can be used in gas zones 1-2 for products with any MIE level
- Type D FIBC can be used in gas zones 1-2 for products with MIE ≥ 0,14 mJ
- Type C and D FIBC can only be used in dust zone 21-22 for products with MIE up to 3 mJ
- Type C and D FIBC can be used only grounded in gas zones 1-2 for product with MIE up to 3 mJ
Question 20:*
Which of following statements are correct?
- Conductive objects and operators shall be grounded during operation of FIBC Types B,C, D
- Conductive objects and operators shall be grounded only during operation of FIBC Type C, D
- Conductive objects and operators shall be grounded only during operation of type D
- There is no need to ground conductive objects or operators during operation of a grounded Type C
Question 21:*
Which of following statements are correct?
- L1 liner is a conductive liner with surface resistivity of ≤ 10⁸ Ohm at one side and an insulating side with a breakdown voltage of less than 4 kV
- L 2 liner is an antistatic liner with surface resistivity between 10⁹ - 10¹² Ohm on at least 1 side
- L3 liner is an insulating liner with a breakdown voltage of less than 4 kV
- L1 liner is a conductive liner with a surface resistivity of ≤ 10⁸ Ohm on both side and a breakdown voltage of less than 6 kV
- Type L1C inner liners are made from multi-layered materials with an internal layer of surface resistivity of ≤ 10⁸ Ω
- Type L1C inner liners are made from multi-layered materials with an external layer of surface resistivity of ≤ 10⁸ Ω
Question 22:*
Which of following statements are correct?
- FIBC Types B,C,D can be used in Zone 21-22 with MIE less than 3 mJ?
- FIBC Types B,C,D can be used in Zone 21-22 with MIE higher than 3 mJ?
- FIBC Type A can be used at non-flammable atmosphere and MIE higher 1000 mJ?
- FIBC Types C and D can be used in Gas Zone 1-2 independent from MIE level
- Type B FIBC can be used in Gas Zone 1-2 with MIE higher than 1000 mJ.
- Type B FIBC can be used in Dust Zone 21-22 with MIE less than 1000 mJ.
Question 23:*
Which FIBC/Liner combinations are allowed by IEC Standard?
- Type B + L1C
- Type B+ L1
- Type C + L3
- Type C + L2
- Type D + L2
- Type D + L3
- Type B + L3
Question 24:*
Which of following statements are correct?
- Label for Type B, C and D FIBC can be made of insulative PE-Film
- Type B, C and D label shall be either conductive or antistatic
- Type B label greater than 100 cm² shall be made of antistatic material
- Type C label greater than 100 cm² shall be either conductive or antistatic
- Type B FIBC labels shall not be made from material with surface resistivity less than 10⁹ Ω
Question 25:*
What aspects of customer filling/discharging environment have to be considered when selecting the appropriate FIBC type according to IEC standard?
- Humidity conditions
- Zone classification
- Temperature
- MIE of the product
Question 26:*
Which of following statements are correct?
- Spark Discharge occurs between two conductors
- Propagating Brush Discharge occurs when two highly charged insulating sheet materials with same polarity come together
- Cone Discharge may occur during filling all types of FIBC with non-conductive powder
- Brush Discharge occurs between insulating surfaces and conductors
- Corona Discharge is used beneficially by some FIBC Type D
Question 27:*
Which sequential arrangement for the strength of discharge type are correct?
- Corona > Cone > Spark
- Cone > Propagating Brush > Brush
- Spark > Brush > Corona
- Spark > Brush > Propagating Brush > Cone
- Cone > Propagating Brush > Brush > Spark
Question 28:*
Which of following statements are correct?
- Spark Discharge can be excluded by grounding of conductors and operators
- Brush Discharge doesn’t ignite powders in absence of flammable vapors
- Corona Discharge ignite powders
- Propagating Brush Discharge can be excluded by limiting of breakdown voltage to < 4 kV
- Propagating Brush Discharge can ignite gas, vapor and powder
- Cone Discharge can be excluded by using a type C or D FIBC
Question 29:*
Which type of hazardous discharge may occur even by using appropriate FIBC Type and need further risk analysis by an electrostatic expert?
- Propagating Brush Discharge
- Brush Discharge
- Cone Discharge
- Corona
- Spark
Question 30:*
How can the risk of cone discharge be reduced?
- Reduce filling and discharge speed + using sieve to avoid build-up of filling cone + using protective gas such as Nitrogen
- By using a Type C or d FIBC
- Cone discharge is not relevant in bulk handling

STATIC PROTECTIVE FIBC – Knowledge Test

About the test

Static Protective FIBC - Knowledge Test

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