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Instrumentation: FIRST PERIOD

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

Magnetism has several terms that must be understood. Which of the terms below would best be defined as the number of magnetic lines of flux that pass through a certain point on a surface?
A magnetic field is set up between the the two poles of a magnet. Which of the answers below would the represent the flow direction inside the magnet?
In a simple circuit, if I= 6 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
If the total error is 1.3 and the dead band error is 0.7, what is the hysteresis value?
Calculate 4/7 + 2/5, and state answer as a proper or mixed fraction
In the SI system, the unit for length is?
In a series circuit what percentage of the applied voltage would appear across an open circuit?
(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?
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?
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 several terms that are used to describe the features of a particular thread type. Which of the answers below would best describe the "³⁄₁₆" in the bolt designation ³⁄₁₆-12 UNF x 6?
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
Which of these pressure to force converters has two diaphragms soldered together?
"A whole number and a fraction combined into one number", is a description of which type of fraction?
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Hydrogen belong to?
In Unified National nomenclature what does the "12" represent in this bolt class- 1/2-12-UNC 2B
A moment balance negative feedback system is a force balance system?
In the WHMIS system, "Other poisons" is represented by which hazard class? Choose from the following answers.
"The tube straightening out is a direct result of the pressure acting inside the tube" is the principle of operation of which pressure to force converter?
State ⁴⁷⁸⁄₉₈ as a mixed fraction.
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "J" as a of measurement?
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?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
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?
There are several types of measuring elements used in industry. Which of the answers below best represents the letter "C"?
What is the density of water?
All objects have mass which is affected by gravity. Which of the answers below represents the USCS approximate value for acceleration due to gravity?
An absolute presser gauge is giving a reading of 7.8 PSI(a). Convert this reading to PSI(g) assuming a local barometric pressure of 11.3 PSI(a).
What is the formula that the pneumatic relays amplification or gain is expressed by?
Heat is based on the movement of molecules. Which of the answers below correctly fills the blank in the following sentence, "Temperature is the measurement of the average _________ of the movement of molecules."
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best describe a major difference between metal conduit and cable tray?
(310104b) Valves are a piece of equipment that needs to be replaced over time. Before removing,or servicing, an high pressure in-line valve, which of the procedures is the worker also responsible for?
(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 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
Which are the two major categories of pressure regulators?
The symbol for a amperes is which of the below?
If a closed tank is pressurized to 105.345 kPa and the pressure gauge at the bottom of the tank reads 198.456 kPa, what head (in feet) of a liquid with a R.D. of 0.11 is contained in the tan
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
(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?
If a tool increases from $43 to $76, what is the percentage increase?
If a closed tank is pressurized to 14 psig and the pressure gauge at the bottom of the tank reads 30 psig, what head (in meters) of a liquid with a R.D. of 0.87 is contained in the tank
Which pressure to force converter is typically used in dial indicating pressure gauges?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "when the magnetic flux alternates from the internal molecular structure reversals, the result is the heating of the core and wasted energy."
When dealing with welding gases and fumes, it is a good practice to limit your exposure to them. The first option to reduce exposure to these fumes and gases is to weld in which of the following locations?
From the information given in the diagram below, what is the total parallel resistance of the circuit?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
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 increase in resistive load?
There are numerous steps to drilling with a power drill. Which answer below correctly identifies the size of the center punch mark in a piece to be drilled?
The common methods for classifying pipe is by NPS and DN. Which of the answers below are these methods used for the classification of piping?
There are several different ways to apply force to an actuator. Which one of the methods below would use a handwheel for operation?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would explosion-proof equipment be primary used?
Which organization sets standards for boots and safety glasses in Canada?
The standard unit of conductance is which of the below?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below is best defined as "A method that attempts to physically separate or isolate the electrical parts or hot surfaces from the explosive mixture."?
In a simple circuit, if E=8 V and R=3 ohms, what is the current of the circuit?
"The production of an electromotive force in one circuit by a change in current in a separate circuit." is the best description of which of the terms below?
(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 Class 1 circuits that are controlled remotely?
If a pressure change of 20 kPa to 80 kPa is to fully stroke a valve, what strength of spring must be used. The control valve has a stem travel of 2.7 cm and the effective area of the diaphragm is 0.08 m^2
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a glass core?
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 resistance to an open circuit?
State the number 0.00007342 using engineering notation and round the answers to three significant digits.
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, removing securing devices and any isolation points once work area is deemed safe, would be which of the steps below?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for flammable material?
convert 4 ⁴⁄₁₁ to an improper fraction.
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a low purge gas pressure audible alarm and fuse only?
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?
"This type of respirator has two different types that are available. These are continuous flow, and pressure demand respirators. " This statement best describes which of the following respirators?
"A quantity having direction as well as magnitude," is a description of which mathematical term?
Burns have a classification by degree. If you have a surface burn, it would be considered which of the following?
When taping a blind that does not go through the metal, the proper steps to tap it are:
The prefix "Centi" can be expressed as?
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
There are several advantages and limitations to installing a zener barrier as an intrinsically safe barrier. Which one of the answers below can be considered an advantage of this style of barrier?
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 minimum of 1.3 volts it can develop or contain?
"Is the change in velocity divided by the elapsed time for the change to be completed." is the description of which mathematical term?
What is usually referred to when loading an ammeter?
This valve is primarily used in slurry service and is not over 8 inch in general
What pressure is exerted at the base of a tank that is 6.7 meters high, with a liquid that has a density of 1200 kg/m³?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous material with immediate and serious toxic effects?
(310104b) Valve disassembling is a fundamental part of the Instrumentation trade. Which of the hazards below would be of primary importance to eliminate when disassembling a sliding stem actuator?
One coulomb is equal to how many electrons?
In the WHMIS system, "Compressed gas" is represented by which hazard class? Choose from the following answers.
Reduce and state answer as a proper or mixed fraction: ¹²⁄₄₈.
The result of a _______ actuator is installed with a ________ valve will be air-to-open
Inductive reactance is the _________________ to change in current created by coil in an AC circuit.
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?
A standard pipe size chart will have piping up to 24". At which pipe size does the OD in inches, match the NPS in inches?
When allowing power to flow to a device, purging may be required beforehand. Which of the answers below best represents the complete volumes of air with positive pressure?
What are the two types of magnet?
What is the pressure generated by a mass of 5 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
In what kind of circuit would all of the applied voltage appear across an open circuit?
Reduce ³⁴⁰⁄₄₀ and state as a proper or mixed fraction.