Which of the following thermometers provides...

Question 1 of 2707066636ef128f7522a1c523424

Which of the following thermometers provides a remote display of temperature on a rotary dial scale and works on the principle of thermal expansion?

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Question 1 of 27070

Q

Which of the following thermometers provides a remote display of temperature on a rotary dial scale and works on the principle of thermal expansion?

🔍 Key Concepts

• Thermal expansion and how it can move a pointer or dial • Difference between local (at the sensor) vs remote (at a distance) temperature indication • Basic working ideas of bimetallic strips, Bourdon tubes, and thermocouples

💭 Think About

• Which of these devices can easily transmit mechanical motion through a small tube or linkage to a dial located some distance away? • Which option normally has the temperature scale built directly where the sensing element is, instead of remotely? • Which device works on an electrical principle (voltage generated by heat) rather than on simple expansion of materials?

✅ Before You Answer

• Identify which options are based on mechanical deformation from heating (expansion/curving/pressure change). • Identify which option is commonly used with a rotary pointer on a dial at a remote panel in engine rooms. • Eliminate any option that primarily gives an electrical signal instead of directly turning a dial by expansion.