After taking the test, you may print your answers for reference or to turn in as
homework.
Multiple Choice
Identify the choice that best
completes the statement or answers the question.
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1.
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Singlemode fiber has a __________ light-carrying core than multimode
fiber.
A. | Smaller | B. | Larger | C. | Same
size |
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2.
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What is the core size of 1300 - 1550 nm singlemode fiber?
A. | 5 mm | B. | 9 microns | C. | 50
microns | D. | 63.5 microns |
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3.
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Singlemode fiber has __________ bandwidth than multimode fiber.
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4.
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What wavelengths are appropriate for use with singlemode fiber?
A. | 650 & 850 nm | B. | 850 & 1300 nm | C. | 1310 & 1550
nm | D. | 850 & 1490 nm |
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5.
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The diameter of the core in OM2 and OM3 multimode fiber is how large?
A. | 50 microns | B. | 62.5 microns | C. | 62.5
mm | D. | 9 mm |
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6.
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Which of the following fiber specifications is most important to the user and is
an important factor in testing?
A. | Attenuation | B. | Bandwidth | C. | Numerical
aperture | D. | Core-cladding concentricity |
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7.
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The largest contributor to fiber attenuation is __________.
A. | Absorption | B. | Scattering | C. | Bending
losses | D. | Microbends |
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8.
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Which fiber typically has the largest core?
A. | POF | B. | Multimode Step Index | C. | Multimode Graded
Index | D. | Singlemode |
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9.
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The loss of a singlemode fiber is lowest at __________.
A. | 850 nm | B. | 1300 nm | C. | 1310
nm | D. | 1550 nm |
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10.
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Which type of dispersion affects singlemode fiber as well as multimode
fiber?
A. | Modal | B. | Differential | C. | Chromatic | D. | Polarization
mode |
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Multiple Response
Identify one or more choices
that best complete the statement or answer the question.
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1.
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Which types of dispersion needs to be tested in long singlemode fiber
links?
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