BASIC INSTRUMENTATION CH.7

Question 1

0 DEGREES K/ -273C O DEGREES R/ -460 FAHRENHEIT IS THE TEMPERATURE THAT ALL MOLECULAR ACTIVITY WILL CEASE

Answer 1

TRUE

Question 2

THE 4 MOST COMMON FLUIDS TO FILL LIQUID THERMOMETERS ARE

Answer 2

MERCURY, ALCOHOL, TOLUENE, PENTANE

Question 3

A BIMETAL THERMOMETER USES 2 STRIPS OF METAL BOTH WITH LOW COEFFICIENTS OF THERMAL EXPANSION

Answer 3

FALSE

Question 4

WHAT ARE 4 USUAL ELEMENTS USED IN FILLED SYSTEM THERMOMETERS

Answer 4

-CAPILLARY TUBE FOR TRANSMISSION
-INDICATING DEVICE (BOURDON TYPE)
-METALLIC BULB CONTAINING TEMPERATURE SENSITIVE FLUID
-COMPENSATING ELEMENTS

Question 5

NAME 4 DISADVANTAGES OF USING A FILLED TEMPERATURE SYSTEM

Answer 5

-LARGE BULBS(GAS)
-NO LOW TEMPERATURE CAPABILITY(MERCURY)
-REQUIRES COMPENSATION
-NON LINEAR SCALE

Question 6

WHAT TYPE OF ELECTRONIC TEMPERATURE SENSOR MAKES USE OF THE VOLTAGE CREATED BY JOINING 2 DISSIMILAR METALS

Answer 6

THERMOCOUPLES

Question 7

THEMAL EXPANSION IS THE PRINCIPLE OF OPERATION OF A LIQUID FILLED THERMOMETER

Answer 7

TRUE

Question 8

THE 2 WIRE (CURRENT TRANSMITTER) IS THE MOST POPULAR ELECTRONIC TEMPERATURE TRANSMITTER

Answer 8

TRUE

Question 9

SMART TEMPERATURE TRANSMITTERS CAN BE CALIBRATED ANYWHERE ALONG THE SIGNAL LOOP

Answer 9

TRUE