Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively - 273° & 80° 32° & 80° 32° & 460° 0° & 80° TRUE ANSWER : ? YOUR ANSWER : ?
When the damping co-efficient (ξ) is unity, the system is Overdamped Underdamped Highly fluctuating Critically damped TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a composition measuring instrument? Thermal conductivity cell Mass spectrometer Polarograph Hot wire anemometer TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following thermocouples can measure the maximum temperature? Iron-constantan Platinum-rhodium Tungsten-molybdenum Chromel-alumel TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following thermocouples is the most suitable for measuring a temperature of about 1600°C in an oxidizing atmosphere? Copper-constantan Platinum-platinum + rhodium Iron-constantan Chromel-alumel TRUE ANSWER : ? YOUR ANSWER : ?
Working principle of mercury in glass thermometer is based on volumetric expansion of mercury with increase in temperature. Which of the following undergoes minimum volumetric expansion for a given temperature change? Methyl alcohal Carbon-tetrachloride Mercury Water TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit? Thomson effect Peltier effect Joule heating effect Seebeck effect TRUE ANSWER : ? YOUR ANSWER : ?
__________ is the static characteristics of an instrument, Drift Dynamic error Response Tine lag TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C? Radiation pyrometer Photoelectric pyrometer Thermocouples Optical pyrometer TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following controllers has the least maximum deviation? P-D controller P-I-D controller P-controller P-I controller TRUE ANSWER : ? YOUR ANSWER : ?