Gamma Corrugator Knowledge Test

A twenty-five question knowledge check for corrugator operators and plant quality technicians. Candidates complete statements about infrared thermometry, glue line control, the iodine stain and the soak tank test, and the form totals the score automatically. Trainers confirm that every shift understands the fundamentals of board bonding.

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In the Claude connectors directory

Name

First Name

Last Name

1. Handheld, noncontact ……………………………… thermometers are used on the corrugators to measure paper and vessel temperatures.

Infrared Mercury Bimetallic Contact thermocouple

2. The ………………. is there only for aiming and has no function in sensing temperature in thermometers.

Laser pointer Focusing lens Infrared detector Reading display

3. When measuring ……………………………. temperatures it is preferable to measure it from both sides of the machine

Roll and preheater surfaces The plant ambient air The adhesive in the tank The boiler steam

4. A quick and accurate way to check if two rolls are parallel to each other is to use ………………..

A taper gauge Carbon paper A steel rule An infrared gun

5. The procedure for measuring internal board temperature with thermo-paper strips was developed by ………………………………

An industry research institute The corrugator manufacturer The adhesive supplier The paper mill

6. There are ……………… different nos. of thermo-papers available to measure temperatures from 90F to 500F.

Four Six Eight Ten

7. Infrared sensors are installed in various places on the corrugator to monitor ……………….

Surface temperatures Moisture content Web speed Glue viscosity

8. An IR gun usually measures…………………………….

Surface temperature only The internal board temperature The average of surface and core Relative humidity

9. …………………………… surface will radiate more than shiny light surface.

Dark, dull Polished metal Painted white Wet

10. …………………………. is recommended on preheaters and hotplates prior to using IR guns

Applying a strip of matt black tape Cleaning with solvent Calibrating with iced water Warming the gun for ten minutes

11. In iodine test ……………….. turns into purple

The starch The water The resin The borax

12. To begin soak test, tank should be filled with heated water at ……………………

100F 120F 140F 180F

13. In medium, if glue line width on the operator side differs from the width on the drive side…………………………… is out of parallel

The glue roll The pressure roll The corrugating roll The preheater

14. Spotty glue line is usually caused by ………………………

A worn or damaged glue roll Excessive steam pressure An overly wet liner High line speed

15. Soak tank test usually allow us to observe…………………….

The placement of adhesive on the flute tips The board caliper The moisture content Board warp

16. Soak tank test is used to discover……………….

Bond failures and skips Flute fracture Edge crush resistance Print defects

17. When a good fiber pull is achieved at one end of the finished board and not the other, it is called………………….

An out-of-parallel condition Delamination Warp Flute crushing

18. Glue roll overspeed problem are caused by an incorrect setting in ……………………

The glue roll drive ratio The steam pressure The rider roll The wrap arms

19. ………………………. Test is used to examine the placement of adhesive

Iodine Soak tank Pin adhesion Caliper

20. Glue lines should be measured with a gauge to determine their width, which will indicate whether the application rate is adequate. This is a valuable tool for determining the correct…………………………… gap settings

The glue roll and the metering roll The two corrugating rolls The pressure roll and the glue roll The rider roll and the table

21. When the adhesive is deposited on the flute tips, it will help to determine correct ……………………

Correct glue application rate Correct roll temperature Correct machine speed Correct liner moisture

22. When Glue roll is out of parallel ………………………… will vary from operator side to drive side

The glue line width The board caliper The flute height The steam pressure

23. Assuming adequate flute tip coverage, poor adhesive transfer to the double facer liner usually indicates inadequate pressure in the …………………………

The double backer pressure section The single facer pressure roll The preheater wrap The glue unit

24. Square footage is calculated by multiplying ……………………………

Sheet width by sheet length Caliper by width Weight by length Speed by time

25. Corrugator board can be tested for resistance to failure upon exposure to moisture with one of the following methods…………………………..

The soak tank test The iodine test The edge crush test The caliper check

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