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. Chromel-alumel Iron-constantan None of these Platinum-platinum/rhodium Chromel-alumel Iron-constantan None of these Platinum-platinum/rhodium ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is H(1 + G) G/H G/(1 + H) H/G H(1 + G) G/H G/(1 + H) H/G ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Load cells are used for the measurement of Stress Velocity Strain Weight Stress Velocity Strain Weight ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following temperature measuring instruments need not touch the object whose temperature is being measured? Radiation/infrared pyrometer Thermo electric pyrometer Filled system thermometer Mercury in glass thermometer Radiation/infrared pyrometer Thermo electric pyrometer Filled system thermometer Mercury in glass thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C. - 51 and 439 - 10 and 425 - 79 and 395 - 39 and 350 - 51 and 439 - 10 and 425 - 79 and 395 - 39 and 350 ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Thermistors are used in __________ devices. Temperature compensating Temperature measuring Both B & C Voltage measuring Temperature compensating Temperature measuring Both B & C Voltage measuring ANSWER DOWNLOAD EXAMIANS APP
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