How to Select an Actuator for Valve
As the process industry continues to achieve more efficient and productive plant design, plant engineers and technicians are faced, almost daily, with new equipment designs and applications. One product, a…
NIST Traceability
Calibration means the comparison and adjustment (if necessary) of an instrument’s response to a stimulus of precisely known quantity, to ensure operational accuracy. In order to perform a calibration, one…
Silica Analyzer Questions & Answers
Silica Analyzer Questions & Answers 1. Which of the following principles are used in silica analyzer? a) Amperometric principle b) Colorimetric principle c) Coulometric principle d) Magnetic principle Answer: b…
Sodium Analyzer Questions & Answers
Sodium Analyzer Questions & Answers 1. Which of the following indicate leakages in a condenser? a) Concentration of sodium in steam and condensate are very high b) Concentration of sodium…
Dissolved Oxygen Analyzer Questions and Answers
Dissolved Oxygen Analyzer Questions and Answers 1. Which of the following transducers must be used for dissolved oxygen analyser? a) Potentiometric b) Polarographic c) Ion-selective electrode d) Optical transducer Answer:…
Thermal Conductivity Analyzers Questions & Answers
Thermal Conductivity Analyzers Questions & Answers 1. Thermal conductivity analyzers cannot be used in which of the following measurements? a) Hydrogen in blast furnace gases b) Determination of argon in…
Infrared Gas Analyzers Questions & Answers
Infrared Gas Analyzers Questions & Answers 1. Which of the following is not a detector used in mid Infrared Spectrophotometer? a) Thermopile b) Thermistor c) Pyroelectric cell d) Golay cell…
H2S Analyzers Questions & Answers
H2S Analyzers Questions & Answers 1. Which of the following is not an advantage of electrochemical cells used for analysis of H2S? a) Portable battery operated instrument b) Pocket sized…
NO2 Analyzer Questions & Answers
NO2 Analyzer Questions & Answers 1. Nitrogen dioxide can be detected with a paramagnetic analyzer. a) True b) False Answer: a Explanation: Nitrogen dioxide can be detected with a paramagnetic…
Electrochemical Methods for Oxygen Analysis Questions & Answers
Electrochemical Methods for Oxygen Analysis Questions & Answers 1. Which of the following is not true about the galvanic method of oxygen analysis? a) Electrodes are composed of noble and…
