A. Elimination of offset
B. Reduction of offset
C. Reduction of stability time
D. None of these
Related Mcqs:
- 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__________________?
A. Filling nitrogen under pressure in the stem
B. Increasing the diameter of the tube
C. Using steel tube in place of glass tube
D. Accounting for the tube expansion - Which of the following is not a composition measuring instrument ?
A. Thermal conductivity cell
B. Mass spectrometer
C. Polarograph
D. Hot wire anemometer - An aneroid barometer measures the _____________ pressure?
A. Atmospheric
B. Absolute
C. Vacuum
D. Gage - An amplitude ratio of 0.1 corresponds to _____________ decibels?
A. 20
B. -20
C. 10
D. -10 - A mercury barometer measures the _____________ pressure?
A. Atmospheric
B. Gauge
C. Vacuum
D. Absolute - Pick out the wrong statement ?
A. O2, NO and NO2 exhibit paramagnetic properties as a result of unpaired electrons
B. CO2 is the strongest paramagnetic gas
C. Paramagnetic susceptibility of gases decreases with temperature
D. Paramagnetic susceptibility of gases permits the measurement of their concentration - A mercury thermometer cannot be used to measure the temperature below the freezing point of mercury, which is _____________ °C?
A. -38.9
B. -11.9
C. -60.9
D. -80.9 - _____________ is an example of distributed parameter system ?
A. Tubular reactor
B. CSTR
C. On-off controller
D. None of these - Which of the following is not classified as a thermo electric pyrometer ?
A. Resistance thermometer
B. Thermocouple
C. Optical pyrometer (disappearing filament type)
D. Radiation pyrometer - The transfer function for a P-D controller is________________?
A. Kc(1+ηD s)
B. Kc(1 +1/ηD s)
C. Kc ηD s
D. Kc/ηD s