A randomized 100 question test from a pool of 1236 questions, good luck!
If a pressure change of 20 kPa to 60 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 7.5 cm and the effective area of the diaphragm is 0.09 m^2
A tank contains a liquid that has a R.D. = 1.15. The depth of the liquid is 6.7 meters. What is the pressure in kPa at the base of the tank?
The CEC generates a air grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Propane belong to?
If a pressure gauge is reading 54 kPag and the local atmospheric pressure is 99 kPaa, the the absolute pressure gauge reading will be?
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
There are many terms for specific electrical components. Which of the components below is best described as a passive electronic component that stores energy in the form of an electrostatic field?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
Calculate the gain when a change from 0.25 psig to 1.5 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
A pressure gauge at the bottom of a tank indicates a pressure of 7.9 psi. The relative density of the liquid is 0.87. What is the depth of the liquid in feet?
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
"The lag in response exhibited due to the absorption of energy in a measuring instrument." is the best description of which term?
A mass of 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
State the following number, 0.005687 using scientific notation and round the answers to 3 significant digits.
Chart recorders still have a place in industry for specific applications. Which of the applications below would be used to fulfill AER requirements at royalty trigger points for natural gas?
Faraday's law of induction states:
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "ib" equipment can withstand?
A battery has a rating of 80Ah, this means it can supply
In any intrinsically safe loop there are several main items that are vital to the loop. Which of the answers below contains those items?
What is usually referred to when loading an ammeter?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "B"?
When 20 C passes by a point in a wire in 12 seconds, what is the current in amperes?
(310104a) The valve body contains some of the vital components in a valve. Which of the components below would be responsible for a valves flow characteristic?
The industry committee network is made up of three bodies. Which of the bodies below acts as a link between the AIT Board and the LACs?
Convert the following quantities to the units asked for: 4572 cm to yards.
Piping material that is non-ferrous is most common in lower temperature services. Which of the answers below would best be classified as a "non-ferrous" material?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
A _________ has the air connection usually above the diaphragm
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
State the number 7.428 using scientific notation and round the answers to three significant digits.
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a glass core?
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
In a simple circuit, if I= 5 A and R=4 ohms, what is the voltage drop over the resistor of the circuit?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would assessing the pen arms and chart plate be?
A car traveling west has an initial speed of zero, and accelerates at a rate of 4 m/s² for 6 seconds. What is the displacement of the car?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below can be best described as, "the ratio of the density of a substance to the density of water."?
Gasses react to the increase or decrease of pressure in measurable ways. Which of the terms below describes the reaction of an enclosed gas to a pressure increase?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
convert 56.7 psi to kPa.
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below can be best described as the the process of accumulating energy in a capacitor?
In the SI system of measurements, there are several symbols used for magnetism. Which of the measurement units below would represent "relative permeability"?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as both a measuring and loading element?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
What are the 2 major parts of a control valve?
Circular chart recorders have several specific accessories. Which of the accessories below would use an ambient compensation capillary?
Which pilot valve has two common supply connections, and two connections for output?
What pressure is exerted at the base of a tank 6.5 meters high when filled with a liquid with a density of 1200kg/m³?
"This physical factor within the environment that harms the musculoskeletal system." This statement best describes which of the hazard groups below?
"The removal of lead sulfate crystals, which reduces the effectiveness of lead-acid, sealed AGM or flooded (wet cell-filler caps) batteries." is the best definition of which of the terms below?
If a closed tank is pressurized to 114.345 kPa and the pressure gauge at the bottom of the tank reads 165.456 kPa, what head (in feet) of a liquid with a R.D. of 0.83 is contained in the tan
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would be leak-proof at any temperature or pressure
The following statement is the best description of which of the terms below, "The electric dynamic that sustains the charge difference in a circuit."?
A parallel circuit reacts in specific ways to the addition of a resistive load. Which of the answers below best describes the reaction to an decrease in resistive load?
If the total error is 1.3 and the dead band error is 0.7, what is the hysteresis value?
State the number 0.004675 using scientific notation and round the answers to three significant digits.
To alter the pressure setting on a regulator what element would you adjust?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "N" represent?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "that at the same temperature and pressure, equal volumes of all gases contain the same number of molecules."?
"Is a triangle with two congruent sides and congruent base angles." is a description of which mathematical term?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
When a pressure of 15 psi is applied to a diaphragm actuator with a diameter of 18 cm, what is the force in Newtons (N) that is created?
(310104d) A control valve is one of many FCEs that are used in industry. Which of the answers below reflects the relationship between a control valve and the process variable?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Ethylene belong to?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as the degree to which the result of a measurement that conforms to the required standard.
If a closed tank is pressurized to 12 psig and the pressure gauge at the bottom of the tank reads 56 psig, what head (in meters) of a liquid with a R.D. of 0.75 is contained in the tank
Solve for the hypotenuse.
There are many studies on how pressure and force affect fluids. "Fluid volume does not affect pressure." is one of the principles of which answer below?
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would a thread-o-let welded to the process line be considered?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to ignition temperatures?
Even though explosion safety equipment must be able to deal with extreme pressures, maintenance must also be allowed to occur. Which of the enclosures below would allow for both maintenance and protection from explosion?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would positively pressurized equipment be primary used?
Calculate the normal force exerted by an object that has a mass of 5.7 kg.
What is the SI unit of pressure?
There are subgroups of fuel for fires need to burn. Which of those subgroups would sulfur belong to?
If tool crib attendant has 8 boxes of fittings, and one person takes 1 3/4 boxes, and another person takes 3 4/5 boxes, and another person brings back 2 1/4 boxes, how many boxes remain?
To alter the pressure setting of a regulator, you would adjust what?
Convert 0.875 to a fraction.
There are several different ways to apply force to an actuator. Which one of the methods below would use a handwheel for operation?
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
"The law that the algebraic sum of the products of the current and resistance in the conductors forming a closed loop in a network is equal to the algebraic sum of the electromotive forces in the loop." This statement is the best description of which electrical law below?
What is the density of water?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as a measurement of the total magnetic field which passes through a given area?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the outlet airflow rate be measured for purging times?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a 2.5 mm minimum water gauge flow to be maintained?
Modification of certain safety enclosures by mechanical means is allowed in certain conditions. Which of the answers below would describe the conditions is required for modification to a flame-proof enclosure?
There are several terms that are used specifically with flammable gases and liquids. Which of the terms below is best described as the minimum or maximum concentration levels of a flammable or combustible material for ignition?
(310104b)There are many different valves to be used for different processes. Which of the valves below would best be used in a high pressure process?
Unless otherwise stated by the manufacturer, there are several general practices when installing a chart recorder. Which of the answers below correctly identifies the maximum distance between DPU and recorder?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below would best be described as,"the measure of the intensity of the force imposed on this object by the local gravitational field"?
Electromagnetism is a property of electrical charges moving through materials. Use one of the answers below to correctly fill in the blanks of the following sentence, "A magnetic fields strength in close proximity to conductor is _________ to the amount of current flowing through it."
Gauge pressure is calculated by?
"Is an electrical quantity that measures how the device or material reduces the electric current flow through it." is the best description for which of the terms below?
In the WHMIS system, the two types of labels that are the most commonly used are? Use the answers provided.
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described an interaction that causes an affected object to This results in an alteration to the state of the object's momentum?
(310104d) There are several features available on valve positioners in industry today. Which of the features below can be best described as one that uses negative feedback in it's operation?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
Modification of certain safety enclosures by mechanical means is allowed in certain conditions. Which of the answers below would describe the conditions is required for modification to an explosion-proof enclosure?