A. Copper-constantan
B. Aluminium-Chromel
C. Platinum-platinum + rhodium
D. None of these
A. pH value
B. Degree of hydrolysis
C. Composition of complex ions
D. All A., B. & C.
A. Helium
B. Nitrogen
C. Hydrogen
D. None of these
A. 50
B. 100
C. 10
D. 1
A. 0.5/0.2
B. 0.2/0.5
C. 0.2 × 0.5
D. 1/√(0.2 × 0.5)
A. Is 30°
B. Is 90° at the most
C. Approaches 180° asymptotically
D. Is 120°
A. Reproducibility
B. Dead zone
C. Time lag
D. Static error
A. > 1.7 and > 30°
B. 30°
C. < 1.7 and 1.7 and < 30°
A. Greater safety of operation
B. Better quality of product
C. Greater operation economy
D. All A., B. and C.
A. Low thermal conductivity
B. Low electrical conductivity
C. High viscosity index
D. Low flash point