Which of the following thermocouples can measure the maximum temperature ?
A. Platinum-rhodium
B. Tungsten-molybdenum
C. Chromel-alumel
D. Iron-constantan
A. Platinum-rhodium
B. Tungsten-molybdenum
C. Chromel-alumel
D. Iron-constantan
A. Reproducibility
B. Dead zone
C. Time lag
D. Static error
A. Hot blast (air) from stoves
B. Molten slag flowing out of blast furnace
C. Combustion space in boilers
D. Rotary limestone calcination kiln
A. Time taken by the controlled variable to reach 63.2% of its full change
B. Same as transportation lag
C. Same as dead time
D. Time required by the measured variable to reach 63.2% of its ultimate change
A. Feed forward control
B. More than one feed-back loop
C. On-off control
D. One feed-back loop
A. Dead
B. Integral
C. Derivative
D. None of these
A. For which the output response is bounded for all bounded input
B. Which exhibits an unbounded response to a bounded input
C. Which satisfies the conditions for a servo problem
D. None of these