Process Control and Instrumentation Normal mercury thermometer can be used to measure a temperature of about 300°C. However, its maximum temperature measurement range can be increased upto about 500°C by Increasing the diameter of the tube Using steel tube in place of glass tube Filling nitrogen under pressure in the stem Accounting for the tube expansion Increasing the diameter of the tube Using steel tube in place of glass tube Filling nitrogen under pressure in the stem Accounting for the tube expansion ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Response of a linear control system for a change in set point is called Frequency response Transient response Regulator problem Servo problem Frequency response Transient response Regulator problem Servo problem ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation __________ type of element is normally not used in the bimetallic thermometers. Multiple helix Single helix Flat spiral Bourdon tube Multiple helix Single helix Flat spiral Bourdon tube ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following shows maximum dip effect (indicating reverse direction of temperature change)? Bimetallic thermometer Radiation pyrometer Thermocouple Mercury thermometer Bimetallic thermometer Radiation pyrometer Thermocouple Mercury thermometer ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Typical specifications for design stipulates the gain margin and phase margin to be respectively > 1.7 and > 30° < 1.7 and < 30° < 1.7 and > 30° > 1.7 and < 30° > 1.7 and > 30° < 1.7 and < 30° < 1.7 and > 30° > 1.7 and < 30° ANSWER DOWNLOAD EXAMIANS APP
Process Control and Instrumentation Which of the following thermocouple materials does not contain nickel? Chromel Alumel None of these Constantan Chromel Alumel None of these Constantan ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS