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 TB 600-1
d.
Air supply failure.
22. What Is the proper water-carbide ratio for the acetylene generator?
a.
1 gallon of water to 2 pounds of carbide.
b.
1 gallon of water to 3 pounds of carbide.
c.
2 gallons of water to 1 pound of carbide.
d.
1 gallon of water to 1 pound of carbide.
a.
Remove entrained lime residue.
b.
Remove entrained water vapor.
c.
Prevent reverse flow of acetylene gas.
d.
Check the water flow In the arrestor.
24. What causes the rapid pulsation of the carbide feed valves?
a.
The constant fluctuation of the diaphragm bellows.
b.
The rapid change in the rate of acetylene generation.
c.
The constant fluctuation of the tank check valve.
d.
The rapid movement of the pressure spring.
25. What action should be taken if water consumption for the last four hoppers of carbide is 355 gallons?
a.
Raise the water inlet temperature setting 5 .
F
b.
Raise the water Inlet temperature setting 10 .
F
c.
Lower the water inlet temperature setting 5 .
F
d.
Lower the water inlet temperature setting 10 .
F
26. The operating pressure of hopper No 1 is 8 psig What Is the proper pressure setting for the standby hopper
No 2 in psig?
a.
6.
b.
8.
c.
10.
d.
12.
27. What condition will NOT cause the alarm bell to sound?
a.
Low water level.
b.
High temperature.
c.
Carbide supply exhausted.
d.
Air supply exhausted.
a.
(1) Hoppers, (2) Generator, (3) Compressor, (4) Flashback Arrester.
b.
(1) Generator, (2) Hoppers, (3) Flashback Arrester, (4) Compressor.
c.
(1) Compressor, (2) Hoppers, (3) Flashback Arrester; (4) Generator
29. Which of the following conditions will cause the carbide feed valve to close during normal production?
a.
Regulating spring pressure exceeds tank pressure.
b.
Tank pressure exceeds regulating spring pressure.
c.
Lime scale forms on throat.
d.
Hoppers become exhausted of carbide.
30. Why is it necessary to provide a pressurized water supply at the generator tank water inlet valve?
a.
To minimize the possibility of operator failure.
b.
To provide metering of the inlet water.
c.
To balance the Inlet valve resistance.
d.
To overcome generator tank pressure during operation.
TEST SOLUTIONS FOR ACETYLENE PLANT
True or False
1.
True
8.
True
2.
False
9.
False
3.
True
10.
False
4.
True
11.
True
5.
True
12.
False
6.
False
13.
True
7.
False
14.
False
D-4
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