For what purpose are Bourdon pressure gauges utilized (kg/cm2) ?
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Answer: B. > 2 (gauge)
Explanation
Bourdon pressure gauges utilize elastic metal tubes designed for moderate to high pressure ranges. They are generally unsuited for very low vacuum or sub-atmospheric pressure measurement tasks. Standard industrial gauges typically measure gauge pressures exceeding two kilograms per square centimeter. Bourdon tubes feature flattened cross-sections that tend to straighten under internal pressure. Mechanical gears amplify the small tube tip deflection to rotate an indicator needle. Materials like bronze, brass, or stainless steel provide necessary spring elasticity.
Hydraulic systems and high-pressure steam lines rely on Bourdon gauges for local monitoring. Rugged mechanical construction ensures long-term reliability in harsh industrial plant environments. Proper gauge selection prevents over-pressurization and mechanical failure during operation. Pressures below atmospheric require specialized capsule or bellows vacuum gauges. Absolute pressures of ten kilograms per square centimeter can be measured if properly referenced. Option B correctly identifies the standard operating range for industrial Bourdon gauges.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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