Industrial seal self study guide - SKF.com

Chapter 8 Review
To take this test, simply place a card or sheet of paper under the first question. After
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The correct answer to the first problem will appear directly to the right of the new question.
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1 . The seal is ready to be installed in the bore when _________________ .
❑ a. the shaft and bore have been checked and cleaned
❑ b. the seal has been pre-lubricated
❑ c. both of the above
❑ d. none of the above
2. For best seal performance, use a(n) _________________ or soft-face hammer
for seal installation.
❑ a. screwdriver
❑ b. arbor press
❑ c. chisel
❑ d. steel hammer
3. Press-fitting tools should have an outside diameter approximately _________________
the bore size.
❑ a. .010” (.254mm) smaller than
❑ b. .010” (.254mm) larger than
❑ c. equal to
❑ d. none of the above
3. A
4. Seals which are to be flush with the outside of the housing can be pressed
in with a _________________ .
❑ a. drift
❑ b. punch
❑ c. block of wood
❑ d. chisel
5. The wrong installation tool can _________________ .
❑ a. cut the seal lip
❑ b. damage the seal case
❑ c. distort the seal
❑ d. all of the above
6. A sealing lip that is cut, turned back or damaged should be _________________ .
❑ a. repaired
❑ b. replaced
❑ c. cleaned
❑ d. chamfered
1. C
2. B
4. C
5. D
6. B