38102. Which of the following thermocouple materials does not contain nickel ?
38103. Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a
38104. Identify an unbounded input from inputs whose transfer functions are given below
38105. "A control system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at the crossover frequency." This is __________ criterion.
38106. Feed forward controller accounts for the __________ changes.
38107. Which thermocouple can be used to measure a temperature of around 1400°C ?
38108. Which of the following filled system expansion thermometer has the capability to measure the lowest temperature ?
38109. Concentration of sugar solution can be determined by the
38110. In a single tank system, the transfer function of __________ to inlet flow rate is 1/TS+1.
38111. Which of the following can not measure a temperature of 1600°C ?
38112. The temperature range for which copper resistance thermometer can be used is __________ °C
38113. Paramagnetism method is not used for the composition determination of __________ in gases.
38114. An amplitude ratio of 0.1 corresponds to __________ decibels.
38115. For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a
38116. Pressure of 0.0001 absolute psi can be measured by __________ gauge.
38117. Pirani gauge is used for the measurement of
38118. The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.
38119. Transfer functions X/Y for which of the following block diagrams is
38120. The characteristic equation for the control system with a closed loop transfer function G1/1 + G2 is given by 1 + G2 = 0. The characteristic equation for the control system
38121. __________ thermometer can not measure sub-zero (< 0° C) temperature,
38122. Starting temperature of optical radiation pyrometer is __________ °C.
38123. Liquid argon level in a pressurised storage tank (at 3 kg/cm2 ) is measured by a/an
38124. Which of the systems having following transfer functions is stable?
38125. What is the dynamic error in a critically damped second order instrument for a ramp input (At) ?
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