1. What is the disadvantage of a span intersection? - ANS ✓Taller support
poles.
2. What is the disadvantage of mast arm supports? - ANS ✓Higher cost.
3. What is the minimum number is heads for Main Street direction? -
ANS ✓Must have a minimum of 2 signal heads.
4. 12" signal heads can be used without side a pole support heads on a
____ to a _____ intersection? - ANS ✓Minimum 40 foot maximum 120 foot
intersection.
5. The a.d.a of 1990 ensures no discrimination against people who have
disabilities? - ANS ✓True.
6. Are pull/ junction boxes only used where wire needs to change
direction? - ANS ✓No
7. What is used to shade signal indications from the sun and allow it be
seen from the lane intended? - ANS ✓Visors.
IMSA level 1 certification
, 2
IMSA
8. Signal heads that are _________ to only be seen from a specific area on
the road? - ANS ✓Visibility limited.
9. ____ assemblies provide the maximum support length to cross over a
street? - ANS ✓Truss type assemblies.
10. You can use the same type signal head _______ on a mast arm and
truss supports? - ANS ✓Mounting hardware.
11. Long life and low power consumption is a major advantage for
_____ lamps? - ANS ✓LEDs
12. The ___ wire keeps signal heads from swinging in the wind? -
ANS ✓tether
13. Span conductor wires are exposed to the weather 24/7? T or f?
- ANS ✓True
14. __________ are used to warn the traveling public of any changes or
work on the road ahead, they are also known as variable/dynamic
message signs? - ANS ✓Changeable message signs
15. The last step before an intersection is ready for ____ is to have
the inspectors, local agencies, and the contractor meet for the final
okay. - ANS ✓Stop and go operation
16. What are the two indications on a ped head and their colors? -
ANS ✓Walking man - white, upraised hand - Portland orange
IMSA level 1 certification
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