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Get ready to take the test
The test has 25 questions. time limit is 30 mins. All the best!
1. Handheld, noncontact ……………………………… thermometers are used on the corrugators to measure paper and vessel temperatures.
Infrared
Mercury
Laser
Led
2. The ………………. is there only for aiming and has no function in sensing temperature in thermometers.
Infrared
Laser
Projector
Gun
3. When measuring ……………………………. temperatures it is preferable to measure it from both sides of the machine
Preheater
Pressure roll
Paper/web
Hot plates
4. A quick and accurate way to check if two rolls are parallel to each other is to use ………………..
Spirit level
Dial gauge
Tape
Vernier
5. The procedure for measuring internal board temperature with thermo – paper strips was developed by ………………………………
Corrugated industry development corporation
Corrugated plant development centre
Corrugator machine design corporation
Corrugator development corporation
6. There are ……………… different nos. of thermo-papers available to measure temperatures from 90F to 500F.
32
43
34
53
7. Infrared sensors are installed in various places on the corrugator to monitor ……………….
Speed
Viscosity
Temperature
Gel point
8. An IR gun usually measures…………………………….
Temperature
Radiation
Heat
Speed
9. …………………………… surface will radiate more than shiny light surface.
Dark smooth
Dark rough
Shiny rough
Shiny smooth
10. …………………………. is recommended on preheaters and hotplates prior to using IR guns
Black paint
Silver paint
White paint
Yellow paint
11. In iodine test ……………….. turns into purple
Paper
Starch
Iodine
Flute
12. To begin soak test, tank should be filled with heated water at ……………………
95 to 100 F
85 to 95 F
78 to 88 F
90 to 95 F
13. In medium, if glue line width on the operator side differs from the width on the drive side…………………………… is out of parallel
Glue roll and metering roll
Glue roll and corrugator roll
Pressure roll and corrugator roll
Corrugator roll and glue roll
14. Spotty glue line is usually caused by ………………………
Worn out glue roll
Worn out corrugator roll
Worn out pressure roll
Worn out pre conditioner roll
15. Soak tank test usually allow us to observe…………………….
Heat issue
Adhesive issue
Speed issue
None of the above
16. Soak tank test is used to discover……………….
Tension issue
Glue roll speed issue
Light adhesive application
All the above
17. When a good fiber pull is achieved at one end of the finished board and not the other, it is called………………….
Directional fiber pull
Delamination
Green bonding
Poor bonding
18. Glue roll overspeed problem are caused by an incorrect setting in ……………………
Machine
Drive
Operator
None of the above
19. ………………………. Test is used to examine the placement of adhesive
Pin adhesion
Iodine test
Soak test
Drop test
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
Glue roll and pressure roll
Glue roll and doctor roll
Glue roll and machine speed
Glue roll and pressure roll
21. When the adhesive is deposited on the flute tips, it will help to determine correct ……………………
Glue roll to paper speed ratio
Glue roll to corrugator speed ratio
Glue roll to pressure roll ratio
Glue roll to metering roll ratio
22. When Glue roll is out of parallel ………………………… will vary from operator side to drive side
Starch
Heat
Gel point
Speed
23. Assuming adequate flute tip coverage, poor adhesive transfer to the double facer liner usually indicates inadequate pressure in the …………………………
Pressure roll
Corrugator roll
Hotplates
Glue roll
24. Square footage is calculated by multiplying ……………………………
Width times length
Width times thickness
Width times pcs
All the above
25. Corrugator board can be tested for resistance to failure upon exposure to moisture with one of the following methods…………………………..
Wet pin adhesion test
Dry pin adhesion test
Moisture adhesion test
None of the above
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