Q. Conversion formula for converting amplitude ratio (AR) into decibels is

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Q. If response of a control system is to be free of offset and oscillation, the most suitable controller is

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Q. Composition of natural gas is determined by the

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

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

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Q. Working principle of mercury in glass thermometer is

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Q. Pick out the wrong statement.

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

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

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

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

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

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

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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.

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

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

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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

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

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Q. Which is the strongest paramagnetic gas?

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

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