What is the Reid vapor pressure of a Grade A...

Question 1 / 2707066636ee728f7522a1c51874c

Question 1 of 2707066636ee728f7522a1c51874c

What is the Reid vapor pressure of a Grade A flammable liquid?

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Question 1 of 27070

Q

What is the Reid vapor pressure of a Grade A flammable liquid?

🔍 Key Concepts

• Grade A flammable liquid definition in 46 CFR (look at how grades A, B, C are distinguished) • Reid vapor pressure (RVP) – what it measures and typical pressure ranges • How vapor pressure relates to volatility and flash point for cargo grades

💭 Think About

• First recall: among Grades A, B, and C, which grade is the most volatile / highest vapor pressure? • Think about whether Grade A cargoes are expected to have relatively low, medium, or very high vapor pressure at normal temperatures. • Compare each answer choice to what you’d expect for a very volatile cargo’s vapor pressure range.

✅ Before You Answer

• Check the regulatory definition of Grade A flammable liquids in 46 CFR Part 30–35 (cargo regulations). • Confirm which numerical vapor pressure range is associated with Grade A in that definition. • Verify that the units are psia at a specified temperature (usually 100°F) so you’re matching like‑for‑like.

Question 1 of 27070

Q

What is the Reid vapor pressure of a Grade A flammable liquid?

A

5 to 8 1/2 psia

B

more than 8 1/2 psia but less than 14 psia

C

14 psia or more

D

None of the above

Question 1 / 2707066636ee728f7522a1c51874c

Question 1 of 2707066636ee728f7522a1c51874c

What is the Reid vapor pressure of a Grade A flammable liquid?

Back

Question 1 of 27070

Q

What is the Reid vapor pressure of a Grade A flammable liquid?

🔍 Key Concepts

• Grade A flammable liquid definition in 46 CFR (look at how grades A, B, C are distinguished) • Reid vapor pressure (RVP) – what it measures and typical pressure ranges • How vapor pressure relates to volatility and flash point for cargo grades

💭 Think About

• First recall: among Grades A, B, and C, which grade is the most volatile / highest vapor pressure? • Think about whether Grade A cargoes are expected to have relatively low, medium, or very high vapor pressure at normal temperatures. • Compare each answer choice to what you’d expect for a very volatile cargo’s vapor pressure range.

✅ Before You Answer

• Check the regulatory definition of Grade A flammable liquids in 46 CFR Part 30–35 (cargo regulations). • Confirm which numerical vapor pressure range is associated with Grade A in that definition. • Verify that the units are psia at a specified temperature (usually 100°F) so you’re matching like‑for‑like.