Transcript Semester 2 - Mark Tyrrell

A+
v3
JEOPARDY
Type 3
CCNA1 v3 Module 9
K. Martin
Router
Type
3
a
Modes
Type 3 WANType 3
TypeWAN
3
b
c Services d
Encapsulation
Router
Router
Type 3
Type 3
f
Basicse
Commands
►►► Final Jeopardy ◄◄◄
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
CCNA1 v3 Module 9
Type 3 a
100
When leak testing a low pressure
centrifugal with nitrogen, what is the
maximum test pressure?
Question
A: 10 psig.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 a
200
Charged low pressure refrigeration
machines may be most efficiently leak
checked by. . .
Question
A: Raising system pressure by heating with circulated hot
water or heating blankets.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 a
300
A hydrostatic tube test kit will. . .
Question
A: Determine if a tube leaks.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 a
400
Where would you place a leak detector probe
to check gas leaks into the water box with
water removed?
Question
A: Through a drain value.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 a
500
EPA regulations require that all appliances
containing MORE than 50 pounds Of refrigerant
(except for commercial and industrial process
refrigeration) be repaired when the leak rate ____
percent of the charge per year.
Question
A: 15%.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 b
100
EPA regulations require that leaking commercial and
industrial process refrigeration be repaired when the
leak rate exceeds ____ percent of the charge per year.
Question
A: 35%.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 b
200
R-11 or R-123 system refrigerant
removal stars with. . .
Question
A: Liquid removal.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 b
300
Why do chillers using CFC-11 and
HCFC-123 require purge units?
Question
A: System operates below atmospheric pressure.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 b
400
When removing oil from a low pressure
system, the temp. should be 130 degrees
Fahrenheit because. . .
Question
A: Less refrigerant will be contained in the oil at the higher
temp.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 b
500
During vapor removal from a low
pressure refrigeration system the system
water pumps, recovery compressor, and
the recovery condenser should all be:
Question
A: What is ON?
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 c
100
Water must be circulated through a
chiller during refrigerant evacuation in
order to. . .
Question
A: Prevent freezing of the water.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 c
200
Charging refrigerant liquid into a
refrigeration system under a 29 in. Hg.
vacuum can cause the. . .
Question
A: System water to freeze.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 c
300
How do you determine when enough vapor has
entered the refrigeration system before you
charge refrigerant liquid?
Question
A: Refrigerant saturation temp. increases to 36 degrees
Fahrenheit.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 c
400
After reaching the required recovery
vacuum on an appliance, you should. . .
Question
A: Wait a few minutes to see if the system pressure rises,
indicating that there is still refrigerant in liquid form or
in the oil.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 c
500
Which of the following repairs would
always be considered “major” under
EPA’s regulations?
4
Question
A: Replacement of an evaporator coil.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 d
100
Appliances need not be evacuated all
the way to the prescribed level when. . .
Question
A: Leaks in the appliance make evacuation to the prescribed
level unattainable.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 d
200
Under EPA’s regulations, which of the
following methods can be used to
pressurized on R-11 or R-123 system
for a non-major repair?
.
Question
A: Warming the refrigerant.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 d
300
When using recovery or recycling equipment
manufactured BEFORE Nov. 15, 1993, technicians
must evacuate low-pressure appliances to the
following level before making a major repair.
Question
A: 25 inches of Hg. Vacuum.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 d
400
When using recovery or recycling equipment
manufactured AFTER Nov. 15, 1993, technicians
must evacuate low-pressure appliances to the
following level before disposing of the appliance.
Question
A: 25 mm of Hg Absolute.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 d
500
Approximately how much refrigerant vapor
is left in an average 35 or 350 ton R-11
chiller at 0psig pressure once all the R-11
liquid has been removed?
Question
A: 100 lbs
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 e
100
A centrifugal chiller rupture disk is
connected to the chillers. . .
Question
A: Evaporator.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 e
200
ASHRAE standard 15-1994 requires the
use of room sensors and alarms to
detect. . .
Question
A: Refrigerant leaks.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 a
300
R-11 at a pressure of 18.1 inches Hg
vacuum has saturation temperature of:
Question
A: 32 degrees Fahrenheit.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 e
400
Which of the following are safety precautions for
low pressure system?
(Choices: Don’t siphon liquid refrigerant by mouth,
Avoid spilling liquid refrigerant on the skin,
Use gloves and safety goggles when working with
liquid refrigerant)
Question
A: All of the above.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500
Type 3 e
500
Under what code group of ASHRAE
standard 34 does R-123 fall?
Question
A: B1.
CCNA1 v3 Module 9
100
100
100
100
100
100
200
200
200
200
200
200
300
300
300
300
300
300
400
400
400
400
400
400
500
500
500
500
500
500