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TRAFFIC SIGNAL TECHNICIAN ( level 11) Questions AND ANSWER.
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TRAFFIC SIGNAL TECHNICIAN ( level 11) Questions AND ANSWER.
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TRAFFIC SIGNAL TECHNICIAN ( level 11)correct answer-
- correct answer-
, incandescent wattage - correct answer-135 Watts
170 & 179 controllers both: - correct answer-allows for interchangeability of components
from different manufacturers inside the cabinet
170 input file plug is connected with a (. ) cable - correct answer-CI cable
170 software are mapped for? - correct answer-cabinet input and outputs
8 Channel and 16 channel chassis, are supported 4 racks 4- 8 - 12 bays & 16 - channel
configurations. - correct answer-TS-2
A (. ) fault, will stay until the monitor is reset - correct answer-a latching fault
a blank ( ) is integrated into each detector Rag and each loaf switch Bay to allow the
monitoring - correct answer-BIU
a blank will return to its state once the power is restored to the system - correct answer-non
latching fault
a forerunner of the electric controllers that we have today was? - correct answer-the electro -
mechanical controller
a key distinction between the ( ) equipment and the ( ) equipment is that the controller
firmware is provided separately from the hardware - correct answer-170 & NEMA
ATC STANDS FOR : - correct answer-ADVANCED TRANSPORTATION CONTROLLER.
Basic contents of 170 controllers are. - correct answer-19" equipment rack, PDA, a conflict
monitor an input file and an output file.
BIU - correct answer-bus interface unit
CCOHS - correct answer-Canadian Centre for Occupational Health Administration
CEC - correct answer-Canadian Electric Code
CMU: - correct answer-conflict monitor unit
, Connector (C) CONTROLS WHAT FUNCTIONALITY? - correct answer-Phasing & detectors
5, 6,7,8 & ring 2 controls
Connectors A, B, C ARE USED FOR SPECIFIC FUNCTIONS, "D" IS COMMONLY UED
FOR - correct answer-Communication
electrically used circuits separate to the input and output terminals of the device for safety
and operational considerations - correct answer-DC isolators
examples of dealing with public in the field - correct answer-always be polite, be confident
when speaking to show that you are in control of the situation and sure of your abilities,
communicate clearly and in terminology the layperson you can understand don't argue or
threatened, don't provide information if you are uncertain of its accuracy. It is better to direct
the person to someone who can answer the question with confidence to give correct
information
examples of unlatching and latching Faults Are - correct answer-low voltage, voltage drop,
loss of 24 volt power supply.
Examples of Upgrade and modifications to Traffic Signal Heads - correct
answer-Replacement of 3 section traffic signal head with the 5 section head, is example of
modification or upgrade
firmware is supplied either on a - correct answer-A memory chip to be installed on the CPU
model or on a removable PROM module .
in the seventies Electro - mechanical controllers were replaced by - correct answer-solid
state Electric controllers
incandescent pedestrian signal wattage - correct answer-60 Watts
ITS - correct answer-Institute of Transportation Engineers
LAOD SWITCHES ARE INTERCHANGEABLE CONTROLLERS ASSEMBLY TYPES. TRUE
OR FALSE? - correct answer-TRUE.
load switches 1 through 6 - correct answer-1. AC hot
2. ground,
3. red / don't walk output to indication
4. N/U
5. Yellow PED CRL /OUTPUT INDICATION
6. RED/ INPUT FROM CONTROLLER
Load switches 7-12 - correct answer-7. Grn / output to indication
8. Y PED CRL / input to controller
9. 24 V
10. Grn Walk/ input to controller
11. AC NEUTRAL
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