On-off control which is a special case of proportional control, has a band width of about _____________ percent?

A. 32°R
B. 273°K
C. 492°R
D. 32°F

A. Speed of response
B. Reproducibility
C. Fidelity
D. Static characteristics

A. Chromatograph
B. Sling psychrometer
C. Mass spectrometer
D. Polarimeter

A. Used for the measurement of thermal radiation
B. An element which senses optical input and delivers thermal output
C. Both A. & B.
D. Neither A. nor B.

A. Proportional to
B. Inversely proportional to the square root of
C. Proportional to the square root of
D. Inversely proportional to the square of

A. Ionisation
B. Pirani
C. Mcleod
D. None of these