Temperature measurement multiple choice questions

Question 1

The type of thermocouple with the highest temperature limit is determined from the type listed here:

(A) J -type
(B) K type
(C) S -type
(D) T -shaped
(E) Type E
Answer: C

Question 2

The negative lead leader of the thermocouple is always color:

(a) blue
(B) Yellow
(C) Red
(D) White
(E) Black

Answer: C

Question 3

The strongest temperature sensing element listed here is:

(a) hot electric puppet
(B) Hole plate
(C) RTD
(D) Fill in light bulbs
(E) Fire Eye

Answer: A

Question 4

The temperature measurement value of 250 degrees Celsius is converted to Kelvin.

(a) 523.2 k
(B) -209.7 k
(C) 709.7 k
(D) -23.2 k
(E) 23.2 K

Answer: A

Question 5

When the reference knot is the same as the measurement knot temperature in the thermocouple circuit :
(A) Zero
(B) Reverse polarity
(C) Noisy
(D) Communication instead of DC
(E) Unreliable

Answer: A

Question 6

" heat suite " refers to:

(a) radiator
(B) Small containers in high temperature liquid
(C) Protection of temperature sensing element
(D) temperature sensing device
(E) High -pressure safety leakage device

Answer: C

Question 7

Reference compensation is required in a thermocouple -based temperature instruments, because:

(A) The trend of corrosion of the copper extension line
(B) The thermocouple is essentially non -linear
(C) Voltage generated with temperature changes
(D) The resistance of the knot changes with temperature
(E) Electrical noise may interfere with measurement.

Answer: C

Question 8

Live heat is:

(a) to increase the heat required for material temperature
(B) The heat exist under environmental conditions
(C) The potential energy in unburned fuel samples
(D) The heat released when the gas suddenly reduces the pressure
(E) The heat required to change the material phase

Answer: E

Question 9

The thermocouple extension line can be easily distinguished from the conventional thermocouple -level wire:

(A) Different metal types
(B) Outside clock color
(C) Special mark on the wire insulation layer
(D) Thickness
(E) Flexibility (multi -stock rather than solid)

Answer: B

Question 10

J -type thermocouple made from the following metals:
(A) Aluminum and tungsten
(B) Tiehe Kang copper
(C) Platinum and platinum /platinum alloy
(D) Copper and Kang copper
(E) Chromel and Alume

Answer: B