Advance your career with help from our practice exams

Instrumentation: FOURTH PERIOD

"Used to check and calibrate general laboratory instruments for accuracy and performance" is the definition of which standard?
The definition for dew point is:
A 120V 60Hz supply is connected to a 10K resistor, what is the current flowing through the resistor?
Each orbit of electrons has a maximum number of electrons it can hold. Which orbit number contains a maximum of 8 electrons?
The first shell of an atom has a maximum of how many electrons?
If it were necessary to operate an 50-300 kPa valve actuator, but you had a 20-80 kPa control signal, the relay used would be?
National Standards Laboratories maintain these standards:
Machines in which successive columns of air are confined within a closed space and elevated to a higher pressure are an example of what type of compressor
Each orbit of electrons has a maximum number of electrons it can hold. Which orbit number contains a maximum of 2 electrons?
Air holds more moisture when:
Direct current is undirectional.
"The unidirectional flow or movement of electric charge carriers ." is the best definition of which of the terms below?
The standard unit of conductance is which of the below?
If the process required that the pressures on two lines had to be maintained at a set different value from one another, which device below would be required
What are seals used for?
""In the event of compressor failure, it serves as a reservoir to provide a short supply of air" is the best description of?
The closest definition of a "Cathode" is which of the below?
Each orbit of electrons has a maximum number of electrons it can hold. Which orbit number contains a maximum of 18 electrons?
The basic set of reference standards used for industrial measurement are refered to as
Neutrons have a negative charge
In a typical air supply system, the component that removes liquid aerosols and droplets from the air system usually through filter cartridges
The nucleus contains two main particles. Choose them from the answers below.
What is the typical requirement when dealing with instrument air in regards to oil content
Air holds less moisture when:
National standards laboratories maintain which standards
In a typical air supply system, the component that a piping and fitting system system that delivers air for instrumentation usage
Hysteresis can only be calculated.
The fifth shell of an atom has a maximum of how many electrons?
A resistor, a pure inductor and a pure capacitor are connected in parallel across a 120V, 60 hz supply. The resistor is 47Ω, the inductor is 0.25H and the capacitor is 50µF. What is the current across the resistor(Ir)?
What is the name of the part of a drill bit which contains the undercut portion between the body and the shank? Usually, size and other details are marked on it.
"To dampen pulsations from the compressors discharge, it acts as a surge tank" is the best description of?
Air holds more moisture when:
In a typical air supply system, the component that stores air and gives capacity storage to the air system is called
The third shell of an atom has a maximum of how many electrons?
"An electrochemical cell that uses a chemical reaction to produce electrical energy." is the best description of which of the terms below?
Air holds less moisture when:
In a typical air supply system, the component that remove contaminants which are in vapour form is called
On an analog voltmeter, when the switch is moved to a higher setting, what happens to the loading?
The sixth shell of an atom has a maximum of how many electrons?
What does an atom consist of?
In a typical air supply system, the component that removes the heat of compression is called
What is the typical requirement when dealing with instrument air in regards to dew point
Name the factor(s) that affect the total opposition to current flow in an AC circuit
"The point in a fluid stream where the diameter of the stream is the least, and fluid velocity is at its maximum" is the best description of which term below?
A resistor, a pure inductor and a pure capacitor are connected in parallel across a 120V, 60 hz supply. The resistor is 47Ω, the inductor is 0.25H and the capacitor is 50µF. What is the current across the inductor (Ixl)?
bob
The total thread angle for UNC bolts will be?
The desiccant head adsorbes water vapour due to which?
What type of tubing should not be bent?
The industrial measurement laboratories reference these standards:
The second shell of an atom has a maximum of how many electrons?
"The process in which an electric or electronic device produces heat."" is the best description of which of the terms below?
What is the smallest particle that a compound can be broken down into, and still retain its unique properties?
Single ported, double ported, cage guided, and 3 way body configurations are all classifications of which valve?
Machines in which the air is compressed by the mechanical action of rotating, imparting velocity and pressure into the air
Protons have a positive charge.
Three 1mF capacitors are connected in parallel, what is the total capacitance of the circuit?
Body styles for this type of valve are usually wafer and flangeless.
Of the answers below, which one is a disadvantage of a double seated globe valve?
Capillary action is designed to do what?
"Is an electrode through which conventional current flows into a polarized electrical device." is the best definition of which of the terms below?
In a typical air supply system, the component that removes the condensed liquids from the air system typically through spinning the air by mechanical means
Protons have a negative charge.
What is mixed with oxygen to give the hottest flame?
The fourth shell of an atom has a maximum of how many electrons?
State the phase relationship between Vxl and Ixl.
A resistor, a pure inductor and a pure capacitor are connected in parallel across a 120V, 60 hz supply. The resistor is 47Ω, the inductor is 0.25H and the capacitor is 50µF. What is the current of the circuit (It)?
"Used to check and calibrate the accuracy and performance of general laboratory instruments" is the deffinition of
The definition for relative humidity is:
"The distance the plug or stem moves in order to go from a full-closed to a full-open position." is the best description of which of the following terms?
When an atom contains the same number of ______ and _______ it is considered neutrally charged
"A collision in which the total kinetic energy of the colliding bodies or particles is not the same after the collision as it was before," is a description of which mathematical term?
"Must provide a pressure load of a minimum of greater than 70 kPa necessary at the instruments" is the best description of?
"Is an encounter between two bodies in which the total kinetic energy of the two bodies after the encounter is equal to their total kinetic energy before the encounter." is a description of which mathematical term?
Which of the valves below would be used for isolation on each side of a control valve?
Of the answers below, which one is a disadvantage of a 3 way mixing valve?
If the iron core of a coil is removed, the time taken for the current to reach its steady state will:
A magnetic field has an area of 100cm by 100cm and 4.5kWb of flux. What is the flux density of the field?
"Usually 150% of the total instrument air requirements in size" is the best description of?
Neutrons have a positive charge.
The closest definition of an "Anode" is which of the following?
In a typical air supply system, the component that usually is the last filter before air distribution which removes particles down to 1 micron in size
Each orbit of electrons has a maximum number of electrons it can hold. Which orbit number contains a maximum of 32 electrons?
"The ability to relate individual results of measurement to a national standard though an unbroken chain of comparisons" is the definition of
The International Bureau of Weights and Measures maintains which standards?
The seventh shell of an atom has a maximum of how many electrons?
What is the typical requirement when dealing with instrument air in regards to particle size
"Is the electrode from which a conventional current leaves a polarized electrical device." is the best description of which of the terms below?
"Condenses water and oil vapours and cools the condensed air" is the best description of?
A 120V 60Hz supply is connected to a 10K resistor, what is the power dissipated by the resistor?
In a typical air supply system, the component that compresses the air pressure to higher than atmospheric is called: