Rajasthan Technical Education Second Year Paper 2016 – Analytical & Environmental Instrumentation

Rajasthan Technical Education Second Year Paper 2016 – Analytical & Environmental Instrumentation

The fundamental properties of a substance are identified by
(a) Spectroscopic analysis
(b) Oxygen analysis
(c) Gas Chromatography
(d) Infrared gas analyser

The sample of unkown substance to be identified is bombarded by an electron beam in an evacuated chamber. Name of this method is
(a) Infrared spectrometer
(b) Ultraviolet absorption spectrometer
(c) X-ray absorption spectrometer
(d) Mass spectrometer

Infrared spectrometer operating in the ragne from
(a) 0.2 to 0.8 microns of wavelength
(b) 0.4 to 1.5 A of wavelength
(c) 1 to 25 microns of wavelength
(d) None of the above

Liquid chromatography find application in
(a) Petroleum industries
(b) Petrochemical industries
(c) Cement industry
(d) Both (a) & (b)

Application of infrared analyser
(a) mining
(b) chemical analysis
(c) drying process
(d) all of these

Analyzer consists of a measuring cell containing a detecting element in the form of a tiny dumb-bell or quartz suspended on thin fibers.
(a) magnetic force type paramagnetic oxygen analyser
(b) The magnetic wind type oxygen analyser
(c) Thermal conductivity snalyser
(d) None of the above

It is a batch type of analysis in which the sample to be analysed for its composition is sent to an absorption column.
(a) Gas Chromatography
(b) Spectroscopy
(c) Oxygen analyser
(d) Thermal conductivity analyser

Which materials used as absorbent in metal tubing in gas chromatorgraphy ?
(a) Activated alumina, silica gel or activated carbon
(b) Iron, copper
(c) Gold, Silver
(d) None of the above

The pH value of acidic solution is
(a) more than 7
(b) less than 7
(c) 7
(d) All of these

The pH may be defined as
(a) A negative logarithmic value of hydrogen ion concentration
(b) A measure of alkalinity or acidity of aqueous solution
(c) Both (a) & (b)
(d) None of the above

Hydrogen ion concentration of aqueous solution measured on
(a) metre scale
(b) centigrade scale
(c) pH-scale
(d) None of the above

Measuring electrode is also knwon as
(a) glass electrode
(b) reference electrode
(c) hydrogen electrode
(d) metal electrode

The detector works on the principle of electrically charging the air within an open detector chamber, the charged air being electronically measurable, can be monitored by
(a) smoke meter
(b) ionisation smoke detectors
(c) dust measurement meter
(d) None of the above

It withdraws a sample of gas at constant velocity and imparts a swirl to the gas and passes it through a tube
(a) electrical type flow dust monitor
(b) electrostatic type flow dust monitor
(c) reflected light dust monitor
(d) None of the above