Valves used in the machinery space piping...

Question 1 / 205eccef9bbacbc34ba4d453b4

Question 1 of 205eccef9bbacbc34ba4d453b4

Valves used in the machinery space piping systems, and constructed with threaded valve stems, must be __________.

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Question 1 of 20

5eccef9bbacbc34ba4d453b4

Valves used in the machinery space piping systems, and constructed with threaded valve stems, must be __________.

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🔍 Key Concepts

• Standard practice for threaded valve stems in machinery spaces • Relationship between clockwise/counterclockwise motion and opening/closing • Why having a uniform direction for operation might matter for safety and emergencies

💭 Think About

• Think about how most threaded fasteners (like nuts and bolts) work when you turn them clockwise vs counterclockwise. How does that usually relate to tightening or loosening? • In an emergency, crew may have to operate valves quickly in low visibility. Would it be safer if closing a valve matched the familiar motion of tightening a fastener, or the opposite? • Which option best reflects a consistent, industry-wide convention rather than "it doesn’t matter"?

✅ Before You Answer

• Compare each choice to the common direction for tightening a threaded part (like a bolt). • Ask yourself: in an emergency, which motion for closing a valve would be most intuitive for most people? • Eliminate any choice that suggests the direction is unimportant, given that standards usually exist for safety-critical actions.

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Question 1 of 20

Valves used in the machinery space piping systems, and constructed with threaded valve stems, must be __________.

right-hand opening (clockwise)

left-hand closing (counterclockwise)

right-hand closing (clockwise)

direction of opening and closing is unimportant

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Question 1 / 205eccef9bbacbc34ba4d453b4

Question 1 of 205eccef9bbacbc34ba4d453b4

Valves used in the machinery space piping systems, and constructed with threaded valve stems, must be __________.

Back

Question 1 of 20

5eccef9bbacbc34ba4d453b4

Valves used in the machinery space piping systems, and constructed with threaded valve stems, must be __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed