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Instrumentation: FIRST PERIOD

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

In the SI system, the unit for length is?
The volume of a rectangle is calculated with which correct equation?
Newton's third law is also known as?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would be adjusted for any slight angularity issues?
A tight seal to the face is required by all respirators. This is a critical element in which of the following type(s) of respirator? Of the options below, choose the best answer.
What are the two main systems of negative feedback?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power delivered by the battery?
Ohm's law states that:
What are the two types of magnet?
convert 4 ⁴⁄₁₁ to an improper fraction.
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
There are two very common types of metric vernier calipers. Which of the answers below best represents the minimum accuracy of a metric Vernier caliper?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a moment balance negative feedback system in the creation of an output signal?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
Locking out energy sources physically is a vital part of servicing valves. Which of the valves below would you use a circular lockout device on the handle?
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 current?
In a simple circuit, if I= 3 A and R=5 ohms, what is the voltage drop over the resistor of the circuit?
One coulomb is equal to how many electrons?
"A particular material or class of materials, that is a hazardous substance in workplace air, has an upper limit on the acceptable concentrations." This statement best describes which of the following answers?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "μ" represent?
Before entering a container to work, your Journeyman asks for a gas test to be done. The foreman agrees and puts the sniffer close to the floor of the container. Of the following answers, which gas would he be testing for?
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an iron core is more preferable than an air one.
8 coulomb of charge requires how many electrons?
(310105i) Any liquid has inherent properties associated with it. When measuring the force applied to the entire area of a liquid, which of the answers below are you trying to measure?
A multi-wheel cutter is used when
From the information given in the diagram below, what is the voltage drop over R4, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Under the Workers compensation act, are apprentices and learners entitled to compensation?
Find the volume in meters cubed of a cylindrical tank that has a radius of 2.4 m and a length of 1.2 m.
A fire is burning in a pile of weathered, oily blankets. Which of the following extinguishers should you use to fight this fire?
1 mechanical, or imperial, horsepower is equal to which of the below?
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?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the addition or release of air from the actuator to achieve proper plug placement?
A pneumatic level transmitter, with an output range of 20-100 kPa, is being used to assess the fluid level in a cylinder though an input range of 0-9 meters. What is the fluid level if the transmitter signal is 56 kPa
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
WHIMIS was put in place to regulate controlled products in the workplace. Which of the federal regulatory bodies below would oversee the suppliers of these products?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
ESD is a major issue for the failure of electrical components. Which of the answers below would best represent the minimum discharge voltage that could damage electrical equipment?
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 best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
Matter that is composed of more than one type of atom is called?
From the information given in the diagram below, what is the current flowing on branch R2?
There are several varieties of manufactured resistors. Which of the answers below is generally regarded as the most common resistor?
There are several different types of drills tools used in industry. Which of the drills below would be best used for exacting work, hole no bigger than a ½" in diameter?
To alter the pressure setting of a regulator, you would adjust what?
The standard unit of conductance is which of the below?
"Two angles that add to 180 degrees," is a description of which mathematical term?
(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?
If a fitting increases in cost from $675 to $890, what is the percentage increase of the fitting?
Faraday's law of induction states:
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would use materials that were resistant to corrosion in it's construction?
The power source is 24V and the resistance is 8Ω what is the current of the circuit?
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?
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?
"The distance traveled divided by the time elapsed to reach final position." is the description of which mathematical term?
What does the term "Cv" represent in calculating pressure drop?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would move as the direct result of the rotation of the torque shaft?
The standard unit of resistance is which of the below?
Convert 0.625 to a fraction.
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
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?
What is the smallest charged particle?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
If a closed tank is pressurized to 17 psig and the pressure gauge at the bottom of the tank reads 34 psig, what head (in meters) of a liquid with a R.D. of 0.23 is contained in the tank
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "4"?
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?
From the information given in the diagram below, what is the total current if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
There are two different ways of identifying general purpose tube. If you see "4 mm-SS-1.452" printed on the outside of the tube, what would the "4 mm" refer to?
Hysteresis can only be calculated.
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a refrigeration system?
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?
(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?
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial relative temperature scale?
Oxygen is a vital component of the combustion process. Which of the answers below best describes the effects of combustion if an amount of gas and oxygen are equal in volume?
(310104b)There are several connection methods available for valve installation. Which of the connection methods below would be referred to as a "Van Stone" flange connection?
The trigonometric ratio of sine is calculated with which mathematical equation?
If a closed tank is pressurized to 111.345 kPa and the pressure gauge at the bottom of the tank reads 160.456 kPa, what head (in feet) of a liquid with a R.D. of 0.38 is contained in the tan
How many electrons does 134.5 x 10¹⁹ represent?
Circular chart recorders have several specific accessories. Which of the accessories below would use an ambient compensation capillary?
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?
What are the 2 major parts of a control valve?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the creation of two equal ranges from standard range?
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 "SS" refer to?
(310105i) Any solid has inherent properties associated with it. which of the tests below refers to the application of force to a material and measures the specimen's response to the stress.
Convert 18.5 psi into inches W.C.
"Is the measure of the amount of space inside of a solid figure, like a cube, ball, cylinder or pyramid." is the description of which mathematical term?
A parallel circuit reacts in specific ways to the to an open circuit. Which of the answers below best describes the reaction of the total line current to an open circuit?
If, for every 10 C of charge, 40 J of energy is available, what is the voltage?
The time constant for a charging capacitor is a measurable quantity. Which of the answers below represents the correct formula to use for this calculation?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
"A characteristic where flow capacity increases linearly with valve travel. Flow is directly proportional to valve travel." is the best description of which of the terms below?
The equation to calculate density is?
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 7 cm diameter filled with gas?
Calculate the relative density for a fluid that has a density of 748 kg/m³
"The results of a devices inelastic quality" is a definition of which term?