FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 9: Temperature Control

Show Answer

Share

---

All types

Filters

Study Flashcards

Question 1

Multiple Choice

Review LaterAdd Note

Review Later

The ____ is a semiconductor whose resistance decreases with increasing temperature.

A) thermocouple
B) thermistor
C) resistance temperature detector (RTD)
D) contactor

E) None of the above
F) B) and C)

Correct Answer

verified

B

Question 2

True/False

Review LaterAdd Note

Review Later

The main difference among temperature switches is the means by which the temperature information is transferred from the sensing element to the switching element.

A) True
B) False

Correct Answer

verified

True

Question 3

True/False

Review LaterAdd Note

Compared to thermocouples, RTDs are less repeatable and less stable.

Temperature switches using differential expansion of metals may be of two different types. One uses a mechanical link; the other uses a ____________________.

There are three basic types of sensing element: (1) ____________________, (2) differential expansion of metal, and (3) expansion of fluid, gas, or vapor.

____ is the difference in temperature at the sensing element between make and break of the controller's contacts when the controller is cycled.

With reference to temperature controllers, ____ refers to the operational functions that a controller has.

The temperature switch (thermostat) is generally used at ____________________ temperatures than the pyrometer.

_____________________ control turns the heating elements on or off based on the difference between the actual temperature and the set-point.

The actual temperature in an on/off system will always fluctuate about some value.