Change of angle of refraction with composition comprises the working principle of a
Anonymous Quiz
23%
polarimeter
26%
polarograph
24%
spectrometer
27%
refractrometer
Flame photometry is used for the determination of compositional analysis of
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13%
solids
52%
alkali metals
24%
natural gas
11%
isotopes
Which of the following is not a composition measuring instrument ?
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43%
Hot wire anemometer
24%
Polarograph
14%
Mass spectrometer
20%
Thermal conductivity cell
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Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C ?
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20%
Optical pyrometer
29%
Photoelectric pyrometer
36%
Thermocouples
16%
Radiation pyrometer
Flame photometry is used for the determination of compositional analysis of
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49%
alkali metals
19%
solids
23%
natural gas
9%
isotopes
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Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively
Anonymous Quiz
41%
- 273° & 80°
21%
32° & 460°
18%
32° & 80°
20%
0° & 80°
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Which of the following is not a composition measuring instrument ?
Anonymous Quiz
36%
Hot wire anemometer
23%
Polarograph
20%
Mass spectrometer
21%
Thermal conductivity cell
Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is
Anonymous Quiz
16%
chromel-alumel
29%
iron-constantan
53%
platinum-platinum+rhodium
2%
none of these.
Which of the following thermocouples is incapable of measuring sub-zero (i.e., < 0°C) temperature ?
Anonymous Quiz
21%
Chromel-alumel
24%
Iron-constantan
44%
Platinum-platinum + rhodium
11%
Copper-constantan
The thermal emf-temperature relationship of most thermocouples is
Anonymous Quiz
28%
linear
32%
parabolic
31%
exponential
8%
square root
Which of the following is not present in bagasse fibre ?
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21%
Cellulose
26%
Lignin
36%
Pentogens
17%
None of these
Nitric acid is not used in the manufacture of
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34%
detergents
24%
fertilisers
24%
aqua regia
18%
explosives.
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