What is specific humidity?

What does a psychrometer measure?

What is a sling psychrometer?

What is the dew point?

What does a thermohygrometer measure?

What material is used in a dew cell?

What is the function of a recording psychrometer?

What is a hygrometer?

What is a hygroscopic material?

What is a solids moisture analyzer used for?

How does a near-infrared (NIR) moisture analyzer work?

What does reflectance depend on?

What is a microwave moisture analyzer?

At what wavelength does water absorb microwaves?

What is gravimetric moisture analysis?

How does an electrical impedance moisture analyzer work?

What does a nuclear solids moisture analyzer measure?

What type of moisture analyzer works based on neutron speed?

Why is moisture measurement in solids important?

What is the key characteristic of a material measured using a microwave moisture analyzer?

What is the primary advantage of using a digital thermohygrometer?

A(n) sample is a sample from a process in which the composition of the sample is the same as in the process piping.

Analyzers that process samples have lag times too long for conventional control methods.

The thermal conductivity analysis method can only be used for gases with widely different thermal conductivities.

An analyzer is a radiant-energy absorption analyzer consisting of an IR electromagnetic radiation source, an IR detector, and two IR absorption chambers.

materials are repelled by a magnetic field.

A measures an electric current generated when the analyzer is subjected to different oxygen concentrations on opposite sides of an electrode.

is the ratio of the actual amount of water vapor in the air to the maximum amount of water vapor possible at the same temperature.

is the ambient air temperature measured by a thermometer that is freely exposed to the air but shielded from other heating or cooling effects.

A is a humidity analyzer that measures the physical or electrical changes that occur in various materials as they absorb or release moisture.

A is a combination of a hygrometer, pressure sensor, and temperature-sensing instrument.

The hygrometer is the device for measuring liquid density.

As the density of the fluid in a vibrating U-tube density analyzer changes, the of the U-tube changes.

A inside the float, which is also used as weight, acts as a variable coupling to a set of external electrical coils.

viscosity is the ratio of absolute viscosity to fluid density and has units of centistokes (cS).

A _ analyzer measures the amount of suspended solids in a liquid by the measurement of light scattering from the suspended particles.

Conductivity measurement is much more complex at higher concentrations because the response may become very _.

A (n) _ is a graph that shows the quantities of reagent required to change the pH of a solution.

A _ analyzer is an electrochemical analyzer consisting of a cell that generates an electric potential when immersed in a sample.

A (n) _ is the modern unit of electrical conductivity and is the reciprocal of resistance.

A _ is a liquid analyzer consisting of an instrument where a measured quantity of a process sample is mixed with precise quantities of reagents and then quantitatively measured with a pH meter or by a colorimetric or other type of detector.

Wet bulb temperature is the highest temperature that can be obtained through the heating effect to water evaporating into the atmosphere.

A _ psychrometer consists of two glass thermometers attached to an assembly that permits the two thermometers to be rotated through the air.

_ is the ratio of the actual amount of water vapor in air to the maximum amount of water vapor possible at the same temperature.

A dew cell is a fiberglass cylindrical core impregnated with lithium chloride and wrapped with a winding of gold wire around the core that serves as a _ element.

A thermohygrometer is a combination of a hygrometer, pressure sensor, and temperature-sensing instrument.

Absolute humidity is another name for humidity ratio.

A _ is a humidity analyzer that measures physical or electrical changes that occur in various materials as they absorb or release moisture.

_ humidity is a ratio of mass water vapor to the mass of dry air plus moisture.

_ is the amount of water vapor in a given volume of air.

_ are the band of electromagnetic radiation between infrared and VHF broadcast frequencies, covering the range of approximately 3 mm to 3 m wavelengths.

Water absorbs microwaves at a wavelength of approximately _.

A hygroscopic material is a material that readily absorbs and retains moisture with _ in humidity and releases moisture with _ in humidity.

_ is a temperature to which air must be cooled for the air to be saturated with water and any further cooling results in water condensing out.

_ is the ability of a material to reflect light or radiant energy.

_ is a simplest device for measuring liquid density.

A (n) _ moisture analyzer is an analyzer that measures the amount of moisture in solids by measuring the speed of neutrons that strike the object.

A near infrared moisture analyzer is a solids moisture analyzer that measures the _ of the process material and calculates moisture content.

_ is a liquid that contains suspended solids that are heavier than the liquid.

_ is a humidity analyzer that uses two thermometers with the bulb of one thermometer kept moist (wet bulb) and the other bulb kept dry (dry bulb).

_ is the ambient air temperature measured by a thermometer that is freely exposed to the air but shielded from other heating or cooling effects.

A _ is the dependent variable that is to be controlled in a control system.

A _ is a change in process conditions that changes the process variable (PV) and must be compensated for by a change in the control variable.

A _ process is where the gain changes at different points on a process curve.

_ is the ability of a process to store material or energy.

_ is the period of time occurs between the time a change is made to a process and the time the first response to the change is detected.

A (n) _ loop is a control system that provides feedback to the controller on the state of the process variable.

_ control is method of changing the output of controller by an amount proportional to an error.

_ is the range of input values that corresponds to a full range of output from controller, stated as a percentage.

_ control is a method of changing the output of a controller by an amount proportional to an error and the duration of that error.

_ is a control strategy in which a primary controller that controls the ultimate measurements adjusts the setpoint of a secondary controller.

A (n) _ is a response where the amount of overshoot decays to one-fourth of the previous amplitude of the overshoot every whole cycle.

Process with a lot of dead time must be tuned to _.

The setpoint step change method consists of making small changes in the _ and observing the response.

_ is a method of tuning a controller by increasing the gain until the system cycles at the point of instability.

_ is a method of tuning a controller based on open loop response to a step input.

A _ digital controller is general type of microprocessor-based controller with all required operating components enclosed in one housing.

A distributed control system (DCS) has the individual functions distributed among a number of pieces of equipment that are connected by a _.

An analog output controller is an electric controller that has _ as the output.

_ is a configuration method that uses library of functions provided by the manufacturer.

_ is a configuration method that consists of two vertical rails, the left one being the source and the right one being the end.

How many types of common control strategies do we have?

How many types of control elements do we have?

What types of effects do we have?

A tube to transport fluid substances is _.

It is efficiently transfer heat.

P&ID differs from PFD because _.

How many types of pressure do we have?

A (n) _ consists of a flexible metal which expands or contracts in response to a change in pressure.

A (n) _ pressure transducer is a diaphragm pressure sensor with a metal diaphragm mounted between two stainless steel blocks.

A (n) _ pressure transducer is a diaphragm or bellow pressure sensor with electrical coils and a moveable ferrite core as the electrical element.

Laser beams are intense, narrow light beams that can travel _ distances.

What are the areas of application of PLC?

What does CPU stands for?

Energy saving is _ of PLC.

Fixed Circuit Operations is _ of PLC.

PLC has _ sizes.

The power supply provides _.

The motor is permitted to run for _.

Are “deodorants” and “soda” the area of applications of PLC?

Leading brands of PLC are _.

The ___ is a federal agency under the U.S. Department of Labor that develops and enforces workplace safety and health regulations.

___ control is the simplest and most common control strategy.

Dynamic characteristics are the characteristics of an element that describe the operation of the element at ________ conditions when the process is not changing.

Process ___ is a system that combines measuring materials and controlling instruments into an arrangement capable of automatic action.