Process Control and Instrumentation Radiation pyrometers as compared to thermocouples Is more affected by corrosive atmosphere Can measure higher temperature Can't measure the temperature of moving objects Has a slower speed of response Is more affected by corrosive atmosphere Can measure higher temperature Can't measure the temperature of moving objects Has a slower speed of response ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire. Increase No change Exponential decrease Decrease Increase No change Exponential decrease Decrease ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Continuous flue gas analyser makes use of paramagnetic properties of some of its constituents, which move towards the strongest part of the magnetic field thus displacing diamagnetic gases. Which of the following gases is diamagnetic? O₂ NO NO₂ CO₂ O₂ NO NO₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation A stable system is the one Which satisfies the conditions for a servo problem None of these Which exhibits an unbounded response to a bounded input For which the output response is bounded for all bounded input Which satisfies the conditions for a servo problem None of these Which exhibits an unbounded response to a bounded input For which the output response is bounded for all bounded input ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples. Inconel Nichrome Steel Vycor (a glass) Inconel Nichrome Steel Vycor (a glass) ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation When a bare thermocouple is covered by a protective sheath, the response becomes Slower and oscillatory Faster and non-oscillatory Faster and oscillatory Slower and non-oscillatory Slower and oscillatory Faster and non-oscillatory Faster and oscillatory Slower and non-oscillatory ANSWER DOWNLOAD EXAMIANS APP
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