Page |1
NFPA 99 2021 Worksheet 2 Questions and Answers with
Complete Solutions UPDATED!!!
A variant on the cryogenic liquid container manifold shall be
permitted to have the headers. Such a variant shall have a
minimum of _____ connections required for each of the
primary and secondary headers.
A. An average days supply
B. 4
C. 2
D. 3 - ANSWER 2; 2 5.1.3.5.10.4 pg. 32
All pressure relief valves shall be made of brass, bronze, or
_____.
A. Carbon steel
B. Stainless steel
C. Copper
D. Cast iron - ANSWER Stainless steel 5.1.3.5.6.1 (1) pg 31
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Cylinders in use and in storage shall be prevented from reaching
temperatures in excess of _____.
A. 160
B. 190
C. 125
D. 100 - ANSWER 125
Final line pressure regulators, when used for bulk cryogenic
liquid systems shall be of a _____ design.
A. Straight through
B. Parallel
C. Balanced
D. None of the above - ANSWER C. Balanced
In central supply systems using gas or liquid cylinders, each
header shall have a _____ to prevent debris from entering the
manifold controls.
NFPA 99 2021 Worksheet 2 Questions and Answers with
Complete Solutions UPDATED!!!
A variant on the cryogenic liquid container manifold shall be
permitted to have the headers. Such a variant shall have a
minimum of _____ connections required for each of the
primary and secondary headers.
A. An average days supply
B. 4
C. 2
D. 3 - ANSWER 2; 2 5.1.3.5.10.4 pg. 32
All pressure relief valves shall be made of brass, bronze, or
_____.
A. Carbon steel
B. Stainless steel
C. Copper
D. Cast iron - ANSWER Stainless steel 5.1.3.5.6.1 (1) pg 31
, Page |2
Cylinders in use and in storage shall be prevented from reaching
temperatures in excess of _____.
A. 160
B. 190
C. 125
D. 100 - ANSWER 125
Final line pressure regulators, when used for bulk cryogenic
liquid systems shall be of a _____ design.
A. Straight through
B. Parallel
C. Balanced
D. None of the above - ANSWER C. Balanced
In central supply systems using gas or liquid cylinders, each
header shall have a _____ to prevent debris from entering the
manifold controls.
