Q. Thermal well made of __________ gives the fastest speed of response, while measuring temperature by thermocouples.

View solution

Q. On-off control which is a special case of proportional control, has a band width of about __________ percent.

View solution

Q. The thermal emf-temperature relationship of most thermocouples is

View solution

Q. Which is the strongest paramagnetic gas?

View solution

Q. In Bode plot, A.R. vs. w is plotted on a/an __________ graph paper.

View solution

Q. A first order system with unity gain and time constant τ is subjected to a sinusoidal input of frequency w = 1/τ. The amplitude ratio for this system is

View solution

Q. Temperature of molten pig iron (1450°C) and molten slag (1500°C) flowing out of a blast furnace is measured by a/an

View solution

Q. For two non-interacting first order systems connected in series, the overall transfer function is the __________ of the individual transfer functions.

View solution

Q. Ordinary mercury in glass thermometer is used for measuring temperature upto 120°C. However, for measuring higher temperature upto __________ °C, thermometer is made by filling nitrogen under pressure above the mercury, which stops the evaporation of mercury and reduces the chance of broken thread of mercury.

View solution

Q. Mercury thermometer is commonly used for low temperature measruement. The freezing point and boiling point of mercury are respectively __________ °C.

View solution

Q. Which of the following thermocouples has the least temperature measurement range?

View solution

Q. Change of angle of refraction with composition comprises the working principle of a

View solution

Q. Which of the following instruments is not used for measuring sub-zero (<0°) temperatures ?

View solution

Q. Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C ?

View solution

Q. Flame photometry is used for the determination of compositional analysis of

View solution

Q. Pick out the wrong statement.

View solution

Q. Working principle of mercury in glass thermometer is

View solution

Q. The frequency at which maximum amplitude ratio is attained is called the __________ frequency.

View solution

Q. Which of the following can measure temperatures in the range of - 20 to 300°C ?

View solution

Q. Composition of natural gas is determined by the

View solution