Process Control and Instrumentation The temperature of tempering oil baths maintained at 400°C during heat treatment of steel is measured by a/an __________ thermocouple. None of these Iron-constantan Platinum-platinum/rhodium Chromel-alumel None of these Iron-constantan Platinum-platinum/rhodium Chromel-alumel ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which is the most suitable instrument for measuring pressure below 3 microns? Bourdon guage Mcleoid gauge Alphatron Ionisation gauge Bourdon guage Mcleoid gauge Alphatron Ionisation gauge 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. Decrease No change Exponential decrease Increase Decrease No change Exponential decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation High temperature of around 2000°C of incandescent gas mantles is measured by a/an Specially designed thermocouple None of these Here Optical pyrometer Radiation pyrometer Specially designed thermocouple None of these Here Optical pyrometer Radiation pyrometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path Object and surrounding are at almost the same temperature Object is transparent Object has varying emissivity Enhancement or attentuation of redia-tion occurs in the sighting path Object and surrounding are at almost the same temperature Object is transparent ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Liquid flow rate in a small channel is best measured by a/an Pitot tube Venturimeter Vane meter Weir Pitot tube Venturimeter Vane meter Weir ANSWER DOWNLOAD EXAMIANS APP
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