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Instrumentation: FIRST PERIOD

A randomized 100 question test from a pool of 1236 questions, good luck!

Worker education is the responsibility of the:
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "a localized electric current induced in a conductor by a varying magnetic field."?
There are three types of radiant energy that is given off by a typical welding arc. Choose the one that does not apply from the answers below.
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen pressure adjustment/verification be?
In the WHIMIS system, the workplace labels must display 3 pieces of information. Of the answers provided, choose the one that is not needed.
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
Matter that is composed of more than one type of atom is called?
There are several different ways to apply force to an actuator. Which one of the methods below would a pneumatic source of air not be required for operation?
Isolating process lines with a physical barrier is one of the steps for safe field servicing of a control valve. Which of the blank types below would best be described a physical barrier between two flanges of sufficient diameter to fill the entire diameter of the pipe to prevent the passing of material beyond that point?
In industry, electrostatic hazards are very important to understand. Which of the terms below can correctly be described as a charge created when two objects that are not good electrical conductors are rubbed together, and electrons from one of the objects rub off onto the other?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve affixing the work to be done to ensure it doesn't move while working on it?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
"The lag in response exhibited due to the absorption of energy in a measuring instrument." is the best description of which term?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the distance from the crest of one thread to another crest measured along the length of the thread?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
There are two different ways of identifying general purpose tube. If you see "⅜ in-SS-0.036" printed on the outside of the tube, what would the "0.036" refer to?
8 coulomb of charge requires how many electrons?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
"Energy" is a calculated quantity. Which of the units below would be used as the measurement of "Energy"?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of refining the grain of the steel to allow for greater resistance to corrosion and temperature extremes?
Both °F and °C are used in industry currently. Which of the answers below correctly identifies 257 °F in °C?
In the contract of apprenticeship, there are several responsibilities that all parties have. Which of the parties below would have the responsibility to permit the apprentice to register and attend technical training?
"Any point on a circuit where two or more current flows meet or are split." is the best description of which of the terms below?
How many coulombs of charge pass though a given point in 1 second, if the current is 15mA
There are several different types of carbon steel in any piping system. Which of the types below would have a 0.3-0.6% carbon content?
Calculate the gain when a change from 1.55 psig to 2.15 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
The ISA has defined 3 types of installations for purge/pressurization for hazardous applications. Which of the types below would an enclosures classification be reduced from Class I, Zone 1 to non-hazardous?
The area of a circle is calculated with which correct equation?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with other toxic effects?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would best be used when connecting larger OD tube to a smaller OD tube?
State the number 479.3 using engineering notation and round the answers to three significant digits.
What is the gain if nozzle backpressure changes from 1.35 psig up to 2.5 psig, and the relay output changes from 4 psig to 17 psig?
A welder has set up a temporary fab area in a c-can. He has put 2 portable fans, one in the front and one in the back, in the c-can for ventilation. Based on the information provided, which type of ventilation is he using? Use the terms provided to choose the best answer.
Some enclosures have removable coverings to allow maintenance work. Which of the enclosures below would have a round cover?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "4"?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would intrinsically safe equipment be primary used?
When making an angularity adjustment, what is the first adjustment made?
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?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
There are several types of soldering irons that are available in industry. Which type of soldering iron below would be used for speedy repairs where electrical power is restricted or unavailable?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "4" in the picture below?
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?
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
"At any junction in an electrical circuit, the sum of currents flowing in equal to the sum of currents flowing out ." This statement is the best description of which of the electrical laws below?
A mass of 5 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
Reduce ³⁴⁰⁄₄₀ and state as a proper or mixed fraction.
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"?
In fluid mechanics, there is always a loss in pressure due to several factors. Which of the factors below would most affect this loss in pressure?
OH&S recognizes that there are a number of hazards on any jobsite. Which of the answers below best represents the number of broad categories that it has grouped those hazards into?
746 Watts is equal to which of the terms below?
Angle motion negative feedback system consists of:
(310105d) Displacement quantities are all a measurable amounts. Which of the answers below would "Kinetic friction" use as it's unit of measurement?
With respect to pressure drop, which control; valve has "high" recovery characteristics?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
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?
In a simple circuit, if I= 2 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
There are several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe the letter "A" in the picture below?
There are several advantages and limitations to installing a galvanically isolated barrier as an intrinsically safe barrier. Which one of the answers below can be considered an advantage of this style of barrier?
What pressure in Kpa is required to produce a force of 17650 lbs. when applied to a diaphragm actuator with a radius of 5 inches?
(310103f) There are several components used in measuring and controlling a process variable. Which one of the components below would be responsible for converting a measured PV into an output signal?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a field device that has a maximum of 1.2 volts it can develop or contain?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosure needs do be reduced from a Class I, Zone 1 to a Class I, Zone 2?
There are some options when deciding to lower the classification of a hazardous atmosphere within an enclosure. Which of the methods below would be the best method for the removal of a hazardous gas?
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?
Lenz Law states:
Circular chart recorders have several specific accessories. Which of the answers below would best describe the accessory that allows the additional measurement of differential and static pressures?
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
In the SI system, what is the fundamental hydrostatic pressure equation
If a pressure change of 20 kPa to 100 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 3.5 cm and the effective area of the diaphragm is 0.05 m^2
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for less than 10 hours a year?
There are numerous types and styles of valves in industry. Which of the actuators below best represents the following picture?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as the difference between the highest and lowest error values
What is the formula that the pneumatic relays amplification or gain is expressed by?
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?
Two pieces of eye protection should be used together when grinding or chipping. Choose the best answer from the selection below.
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the voltage delivered to the field device?
What is the SI unit of pressure?
All pipe in a piping system can be grouped into two categories. Which of the answers below best represents those categories?
(310102n) The Canadian Electrical code (CEC) encompasses all standards for electrical/instrumentation work. Which of the sections of that code below would relate best to the installation of an electrical communication system?
A mass of 7 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
Around most construction tasks, eye protection is important. The selection of eye protection will rest mainly with which of the following answers? Choose the best one that applies.
65% of 765 is equal to?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a measuring element?
The height of a free standing or rolling scaffold is restricted to no more than 3 times the smallest base dimension. This guideline comes from which of the acts below?
Which of the terms below is measure in "watts"
Convert 88 PSI to kPa
(310105i) Physics has may "laws" that can be applied in industry. Which of the "laws" below would relate best to the strain of a material is proportional to the stress applied
To move 175 C across two points. when the voltage is 30 V, how much energy is required?
(310105d) The output of an applied force uses is a measurable quantity. Which of the terms below would be use "W" as it's unit of measurement?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁T₂=P₂V₂T₁"?
(310104a) The valve body contains some of the vital components in a valve. Which of the components below would be responsible for the alignment for the path of travel of the valve plug?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?