The two metals used in a type K thermocouple are:

The two metals used in a type K thermocouple are:
 
  A) Aluminum and copper. B) Iron and steel.
  C) Copper and antimony. D) Chromel and alumel.

---

[Ques. 2] Where is subcooled refrigerant found?
 
  A) Where the refrigerant changes from liquid to gas
  B) Where the refrigerant is a gas
  C) Where the refrigerant is a liquid
  D) Where the refrigerant changes from gas to liquid

---

[Ques. 3] What causes the pointer of a dial thermometer to move?
 
  A) The dial is attracted to magnetic north, but its attraction varies with temperature
  B) A set of gears connected to a heat motor
  C) A coiled piece of metal with a high rate of thermal expansion
  D) Pressure from the vaporization of a volatile fluid

---

[Ques. 4] Which is the largest similarity between the Kelvin and the Rankine temperature scales?
 
  A) Both use the same boiling point. B) Both easily convert to Celsius.
  C) Both use the same temperature spacing interval. D) Both begin at absolute zero.

---

[Ques. 5] Electronic temperature sensors can be:
 
  A) Generally less accurate than bimetal thermometers.
  B) Thermocouple, thermistor, or wire-wound.
  C) Thermistor, bimetal, or charged bulb.
  D) Bimetal, mercury bulb, or piezoelectric.