Polarograph is meant for the analysis of
Polarograph is meant for the analysis of
The initial value (t=0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is
The initial value (t=0) of the unit step response of the transfer function [(s + 1)/(2s + 1)] is
E.m.f. generated by thermocouples is of the order of
E.m.f. generated by thermocouples is of the order of
Response of a system to a sinusoidal input is called __________ response.
Response of a system to a sinusoidal input is called __________ response.
The transfer function of a pure dead time system with dead time τd is
The transfer function of a pure dead time system with dead time τd is
A typical example of a physical system with under damped characteristic is a
A typical example of a physical system with under damped characteristic is a
Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is
Emf developed by a thermocouple while measuring a temperature of 400°C is 22 mV. The type of thermocouple used is
Which of the following thermocouples has the widest temperature measurement range?
Which of the following thermocouples has the widest temperature measurement range?
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit?
Which of the following relates the absorption & evolution of heat at the junctions of a thermocouple to the current flow in the circuit?
Turbine flow meters are suitable for
Turbine flow meters are suitable for
Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?
Which of the following is not suitable for measuring the temperature of a red hot object in the range of 800 - 1600°C?
Hot wire anemometer is used for the measurement of
Hot wire anemometer is used for the measurement of
Which of the following is a 'contact' pyrometer?
Which of the following is a 'contact' pyrometer?
Which of the following shows maximum dip effect (indicating reverse direction of temperature change)?
Which of the following shows maximum dip effect (indicating reverse direction of temperature change)?
Pirani gauge is used for the measurement of
Pirani gauge is used for the measurement of
Conversion formula for converting amplitude ratio (AR) into decibels is
Conversion formula for converting amplitude ratio (AR) into decibels is
Pick out the one which is a first order instrument.
Pick out the one which is a first order instrument.
The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.
The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.
Working principle of mercury in glass thermometer is
Working principle of mercury in glass thermometer is
Which of the following flow-metering instru-ments is an areameter?
Which of the following flow-metering instru-ments is an areameter?
Mercury manometer (U-tube type) exemplifies a __________ order system.
Mercury manometer (U-tube type) exemplifies a __________ order system.
The pressure sensing element of elastic type pressure gauge is never made in the form of a
The pressure sensing element of elastic type pressure gauge is never made in the form of a
Stroboscope is used for the measurement of
Stroboscope is used for the measurement of
Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?
Which of the following temperature measuring instruments need not touch the object whose temperature is being measured?
Continuous measurement of specific gravity of a liquid is done by
Continuous measurement of specific gravity of a liquid is done by
Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C.
Pick out the most suitable instrument for measuring temperature in the range of-40 to 425°C.
Flapper nozzle is used in a/an __________ controller.
Flapper nozzle is used in a/an __________ controller.
The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C.
The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C.
Which of the following thermocouple materials does not contain nickel?
Which of the following thermocouple materials does not contain nickel?
Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is
Emf developed by a thermocouple while measuring a temperature of 800°C is about 31 mV. The type of thermocouple used is
In an exothermic chemical reactor, the manipulated variable is the flow rate of
In an exothermic chemical reactor, the manipulated variable is the flow rate of
Dead zone is the
Dead zone is the
Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively
Reference points i.e., ice point and steam point in Reaumer temperature scale are respectively
Range of hydrogen gas constant volume themometer is __________ °C.
Range of hydrogen gas constant volume themometer is __________ °C.
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.
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.
Stalagmometer is used for the measurement of
Stalagmometer is used for the measurement of
Liquid flow rate in an open channel can not be measured by a/an
Liquid flow rate in an open channel can not be measured by a/an
The term analogous to voltage in a single tank system is the
The term analogous to voltage in a single tank system is the
Specific gravity of a liquid can not be measured by a/an
Specific gravity of a liquid can not be measured by a/an
Transfer function of transportation lag is
Transfer function of transportation lag is
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.
Relationship between absorption/evolution of heat at the thermocouple junctions and the current flow in the circuit is given by __________ effect.
Mercury thermometer can be used to measure the temperature upto __________ °C.
Mercury thermometer can be used to measure the temperature upto __________ °C.
A control system has the following transfer function F(s) = (s - 1)(s + 1)/s(s - 2)(s + 4)
The initial value of the corresponding time function is
A control system has the following transfer function F(s) = (s - 1)(s + 1)/s(s - 2)(s + 4)
The initial value of the corresponding time function is
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.
In a shell and tube heat exchanger, the inlet temperature of heating/cooling fluid is the __________ variable.
Zirconia probe is used for the measurement of
Zirconia probe is used for the measurement of
In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the __________ variable.
In a shell and tube heat exchanger, the outlet temperature of heating/cooling fluid is the __________ variable.
Which of the following does not figure in the list of seven substances selected for international temperature scale?
Which of the following does not figure in the list of seven substances selected for international temperature scale?
The level of a liquid under pressure can be determined using
The level of a liquid under pressure can be determined using
__________ is an example of distributed parameter system
__________ is an example of distributed parameter system
Dilatometer is used to measure
Dilatometer is used to measure
Smoke density of the flue gas going out of the chimney is measured by a
Smoke density of the flue gas going out of the chimney is measured by a
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a
Flow rate of those fluids which are insensitive to changes in their density, viscosity or flow velocity profile can be best measured by a
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in
A photo electric device in which the resistance of the metal is directly proportional to the light striking on it, is known as photo-conductive cell. Photoelectric transducers are used for the measurement of those parameters, which can be used to produce variation in
Which of the following thermometers is not suitable for distant reading upto 60 metres?
Which of the following thermometers is not suitable for distant reading upto 60 metres?
Working principle of disappearing filament type optical pyrometer is based on the
Working principle of disappearing filament type optical pyrometer is based on the
The function of a transducer is to
The function of a transducer is to
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a
Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a
Configuration of Bourdon spring tube is never made of __________ shape.
Configuration of Bourdon spring tube is never made of __________ shape.
In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable.
In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the __________ variable.
Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the
Out of the following temperature measuring instruments, the measurement accuracy will be minimum for the
0n-off control which is a special case of proportional control, has a band width of about __________ percent.
0n-off control which is a special case of proportional control, has a band width of about __________ percent.
If response of a control system is to be free of offset and oscillation, the most suitable controller is
If response of a control system is to be free of offset and oscillation, the most suitable controller is
Continuous measurement of moisture in paper is done by
Continuous measurement of moisture in paper is done by
The operation of a rotameter is based on
The operation of a rotameter is based on
Platinum resistance thermometer is the international standard for temperature measurement between
Platinum resistance thermometer is the international standard for temperature measurement between
Volumetric expansion is the working principle of the __________ thermometers.
Volumetric expansion is the working principle of the __________ thermometers.
Thermisters which have a very high temperature co-efficient of resistivity belong to the class of solid called
Thermisters which have a very high temperature co-efficient of resistivity belong to the class of solid called
The transfer function of a first order system is
The transfer function of a first order system is
Which of the following fluid flow measuring devices can measure the largest flow rate?
Which of the following fluid flow measuring devices can measure the largest flow rate?
A sinusoidal variation in the input passing through a linear first order system
A sinusoidal variation in the input passing through a linear first order system
Presence of a small amount of water in the organic systems can be determined by the __________ method.
Presence of a small amount of water in the organic systems can be determined by the __________ method.
Which is the strongest paramagnetic gas?
Which is the strongest paramagnetic gas?
Mcleoid gauge is used to measure the
Mcleoid gauge is used to measure the
Gain margin is equal to the
Gain margin is equal to the
Cascade control means
Cascade control means
When a bare thermocouple is covered by a protective sheath, the response becomes
When a bare thermocouple is covered by a protective sheath, the response becomes
Gas chromatography is used for the measurement of
Gas chromatography is used for the measurement of
In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is
In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is
The __________ of a vapor pressure thermometer is a functioning element.
The __________ of a vapor pressure thermometer is a functioning element.
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the
What is the Laplace transform of sin t ?
What is the Laplace transform of sin t ?
Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is
Emf developed by a thermocouple, while measuring a temperature of 600°C is about 5.5 mV. The type of thermocouple used is
Which of the following measurements can be made by the measurement of emf?
Which of the following measurements can be made by the measurement of emf?
For two non-interacting first order systems connected in series, the overall transfer function is the __________ of the individual transfer functions.
For two non-interacting first order systems connected in series, the overall transfer function is the __________ of the individual transfer functions.
The closed loop pole of a stable second order system could be
The closed loop pole of a stable second order system could be
The term analogous to the electrical current in a thermal system is the
The term analogous to the electrical current in a thermal system is the
A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same
A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same
Which of the following is not a mechanical pressure sensing element?
Which of the following is not a mechanical pressure sensing element?
Which of the following judges the accuracy of an instrument?
Which of the following judges the accuracy of an instrument?
The time constant of a first order process with resistance R and capacitance C is
The time constant of a first order process with resistance R and capacitance C is
What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple?
What is the normal percentage of rhodium in platinum + rhodium element used in the thermocouple?
According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is
According to Bode stability criterian, a system is unstable, if the open loop frequency response exhibits an amplitude ratio exceeding unity at frequency for which phase lag is
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?
Working principle of bimetallic thermometers is difference in linear co-efficient of thermal expansion of two strips of different metals welded together. Which of the following has the maximum thermal co-efficient of linear expansion?
Maximum differential pressure in liquid manometer is __________ psi.
Maximum differential pressure in liquid manometer is __________ psi.
Which of the following is not a differential pressure flow meter?
Which of the following is not a differential pressure flow meter?
What is the Laplace transform of impulse input having magnitude 'X' ?
What is the Laplace transform of impulse input having magnitude 'X' ?
Which is the most suitable instrument for measuring pressure below 3 microns?
Which is the most suitable instrument for measuring pressure below 3 microns?
Typical specifications for design stipulates the gain margin and phase margin to be respectively
Typical specifications for design stipulates the gain margin and phase margin to be respectively
Out of the following themocouple wire insulating material, the highest temperature rating is for
Out of the following themocouple wire insulating material, the highest temperature rating is for
In second order underdamped system,
In second order underdamped system,
