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Instrumentation: FIRST PERIOD

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

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.
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed medical air system?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a compressed air system?
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
Calculate the gain when a change from 0.5 psig to 1.35 psig in nozzle backpressure and a change from 3 psig to 12 psig in the relay output occurs.
(310104a) There are only two major parts to a sliding stem control valve assembly. Which of the components below would best be described a a device that produces linear motion from a source of power to control the flow of .energy of a process?
A mass of 7 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
Soldering is a common method of joining metals. To be effective the which of the items below must have a lower melting point than the parent metals?
The ratio 3.4:2.5 equal to?
In the fraction A/B, is A the numerator?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
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."?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
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?
The equation to calculate density is?
In a simple circuit, if E=6 V and R=5 ohms, what is the current of the circuit?
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
Convert 0.125 to a fraction.
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
Hysteresis can only be calculated.
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?
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?
Synthetic slings can be selected for a task specific application. Which of the sling property below would allow a nylon sling to be used in an explosive atmosphere?
Maintaining all of the required PPE within the manufactures guidelines and in good working order is the responsibility of the________." Choose from the following answers to fill the blank.
There are several vital components to a static pressure mechanism in a chart recorder. Which of the components below would be used as a span adjust?
Convert the following quantities to the units asked for: 27000 seconds to hours.
Alloy steels are very common in industry. Which of the types of alloy steel would "Ferritic" piping be?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where gases or vapours are present sufficient quantity to produce explosive or ignitable mixtures.
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measure of how much matter is in an object?
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is slowly heated and cooled providing a soft flexible result?
The CEC generates a dust grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would metallic, hazardous dust belong to?
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?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
From the information given in the diagram below, what is the voltage across each resistor?
(310101c) Although soldered fittings for tube can be used on pressure and DWV applications, there are some differences between the fittings. Which of the answers below describes one of the major differences that the DWV fittings have when compared to pressure fittings??
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?
convert 56.7 psi to kPa.
(310103f) Strain type gauges are commonly found in industry. Which of the strain gauges below is the most accurate?
"Change (variance) In total amounts expressed as percentages." is the description of which term?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be referred to as the ability to accept or resist an external force trying to deform it?
(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 2 power circuits that are considered low energy?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
If a closed tank is pressurized to 103.345 kPa and the pressure gauge at the bottom of the tank reads 145.456 kPa, what head (in feet) of a liquid with a R.D. of 0.37 is contained in the tank?
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?
How many electrons does 134.5 x 10¹⁹ represent?
(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?
"Is done when a force that is applied to an object and moves that object." is a description of which mathematical term?
Which term can be defined as the pressure at any point in an atmosphere due solely to the weight of atmospheric gases above the point concerned
There are many studies on how pressure and force affect fluids. "Container shape does not affect fluid pressure." is one of the principles of which answer below?
"Having only magnitude, not direction, such as speed", is a description of which mathematical term?
Stress affects metals in several different ways. Which of the answers below would best be described as the permanent deformation at a slow rate?
Convert 0.500 to a fraction.
There are only a few parts to a capacitor. Which of the following terms best describes the insulator between two plates of a capacitor?
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
If side "A" is equal to 45mm and side "B" is equal to 76mm, solve for side "C".
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as equipment or circuits that are tested under fault situations?
(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 2 circuits that are controlled remotely?
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.
(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 best description for "Zero adjustment" in relation to calibrating instruments is which of the following?
If there was a need to provide a regulated output pressure with no distrubances from varying inlet and downstream pressures, which of the devices below would be used?
Reduce ⁹⁄₁₄ and state as a proper or mixed fraction.
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?
(310103f)There are several methods for measuring process variables. Which of the transmitters below would use cavities filled with oil used as a dielectric in the creation of an output signal?
The prefix "giga" can be expressed as?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
"Having only magnitude, not direction, such as mass", is a description of which mathematical term?
State 3 ⅞ as a mixed fraction.
"A version of mathematical notation in which the exponent of base ten must be divisible by three" is a definition of what?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
"A quantity having direction as well as magnitude," is a 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?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
(310103d) There are several different designs of regulator. Which of the loading element designs below would have to slowest response to changes in downstream pressures?
Of the types of link and lever calibration methods below, which one requires a minimum of two types of adjustments?
"If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A" is a description of which one of Newton's laws?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosures classification must be reduced from Class I, Zone 1 to non-hazardous?
What is the formula to calculate Hydrostatic peressure
When making an angularity adjustment, what is the first adjustment made?
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 "⅜" refer to?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for corrosive material?
(310102m) A capacitor's voltage increases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full charge in a typical capacitor?
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 only?
Of the answers below, which one is a disadvantage of a Pinch valve?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
In the WHMIS system, "Infectious materials" is represented by which hazard class? Choose from the following answers.
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run insulated impulse lines to location?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious biohazardous material?
The symbol for resistance is which of the below?
Before entering a confined space for the first time or re-entering after a break, it is a good practice to do which of the following?
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
A capacitor discharges it's voltage at a specific rate. How many tau are required for a capacitor to expend 99% of it's original voltage?
Of the valves below, which would be best for erosive service?