NNCSS-Communication Server(CS) 1000 Rls. 4.0
Hardware Installation and Maintenance
Exam: 920-160
Demo Edition
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920-160
1
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QUESTION: 1
When installing an AC power supply in a CS 1000S Rls 4.0 system, according to the procedure
for testing ground, what should be the resistance measure?
A. less than 1 ohm
B. less than 0.25 ohms
C. direct short with NO resistance
D. more than 0.25 ohms but NOT exceeding 0.5 ohms
Answer: B
QUESTION: 2
After installing the grounding block according to the grounding cabinets or chassis procedure,
which task must be performed before power is applied?
A. Test the ground.
B. Connect the power cord and power up.
C. Turn on the circuit breaker to reserve power (battery backup).
D. Place a DO NOT DISCONNECT tag on the ground wire at the service panel.
Answer: A
QUESTION: 3
In a CS 1000M Rls. 4.0 installation, installing the four-feed PDU (NT4N49AA) is a two step
process. What is the first step?
A. Remove the air intake grill.
B. Test the resistance on the ground.
C. Install the protective/safety ground.
D. Connect power from the power plant to the PDU.
Answer: C
QUESTION: 4
In an AC powered single-column CS 1000M Rls. 4.0 large system, how is the personal hazard
ground wiring routed?
A. Connect a #6 AWG wire from the ground source in the service panel to a ground lug on the
pedestal.
B. Connect a #8 AWG wire from the ground source in the service panel to a ground lug on the
pedestal.
C. It is routed from the ground source in the service panel to the ground lug on the closet
column. Then daisy hain #6 AWG ground wires from It is routed from the ground source in the
service panel to the ground lug on the closet column. Then daisy ?hain #6 AWG ground wires
from one pedestal to the next.
D. It is routed from the ground source in the service panel to the ground lug on the closet
920-160
2
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column. Then daisy hain #8 AWG ground wires from It is routed from