Advance your career with help from our practice exams

Instrumentation: FIRST PERIOD

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

There are several definitions used frequently in the CEC."Containing any explosion originating within its housing and prevent sparks from within its housing from igniting vapors, gases, dust or fibers in the air surrounding it." would best describe which of the terms 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 is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 4 cm diameter filled with gas?
If a battery has a rating of 75 Ah, theoretically it could provide 6.8 A for how long?
"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?
State the number 23.569 x 10¹³ using engineering notation and round the answers to three significant digits.
Alloy steels are very common in industry. Which of the types of alloy steel would "Martensitic" piping be?
The radius of a circle is calculated with which correct equation?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would convey the movement of the drive arm to the range arm?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for more than 1000 hours a year?
The use of process seals is required in some applications. Which one of the terms below is best described as a seal that prevents the process from passing into the electrical conduit in the event of the initial seal failure?
Which of the terms below is best described by the following statement, "Defines the direction of current flow in an electrical circuit."?
State this fraction as a mixed fraction: ⁵⁵⁄₈.
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "W" as a of measurement?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period while the capacitor gets to 5τ?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the period when the capacitor gets to 5τ?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve coating the iron tip with a small amount of solder?
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 0-15.5 meters. What is the fluid level if the transmitter signal is 78 kPa
The best description for "Zero adjustment" in relation to calibrating instruments is which of the following?
Covert 3 ⅘ to an improper fraction
(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 grounding of transformer circuits for instruments?
With respect to pressure drop, which control; valve has "high" recovery characteristics?
What is the name of the part of a drill bit that carries the cut material out of the hole that is being drilled?
65% of 765 is equal to?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
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?
(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?
To preform a "Span" adjustment the order of the step(s) is/are?
Isolate the following equation for "v": d=vt
There are several varieties of manufactured resistors. Which of the answers below is constructed with a ceramic core?
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?
The volume of a cube is calculated with which correct equation?
What are the 2 major parts of a control valve?
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?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
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?
What is the area of a rectangles with sides measuring 15.5 cm, and 12.6 cm?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
Burns have a classification by degree. If you have a surface burn, it would be considered which of the following?
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?
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?
"2+(9+7)=(2+9)+7" is an example of which mathematical law?
What pressure does a column of liquid exert with a density of 56.7 lbs per cubic foot and a height of 54 inches
"Is the side next to the angle of significance." is a description of which right angle triangle mathematical term?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the minimum safety standards set for employers?
There are several terms which relate to charging of a capacitor. Which of the terms below would apply to the voltage when the capacitor gets to 5τ?
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
A "wheel and axle" is an example of which type of machine?
The symbol for a amperes is which of the below?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be use "J" as it's unit of measurement?
Chart recorders still have a place in industry for specific applications. Which of the applications below would be used to fulfill ABSA requirements?
In a simple circuit, if E=4 V and R=2 ohms, what is the current of the circuit?
Calculate the normal force exerted by an object that has a mass of 5.7 kg.
(310104b) There are many different valves to be used for different processes. Which of the valve types below would be considered self-cleaning?
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?
Determine the voltage V(bd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the the responsibilities of those associated with the work site?
Hazardous locations are further divided into specific zones and divisions. Which of the answers below would apply if flammable vapours were present for more than 10, but less than 1000 hours a year?
Convert 0.500 to a fraction.
Chart recorders have some specialized applications in industry. Which of those applications would best make use of the multiple temperature inputs available?
What item would be used on a pneumatic system to speed up the pneumatic signal?
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?
What is the smallest charged particle?
(310105d) The amount of power an applied force uses is a measurable quantity. Which of the units below would be equal to 1 hp of power?
What type of cell is a lithium constructed battery?
In the WHMIS system, "Corrosive materials" is represented by which hazard class? Choose from the following answers.
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 0-20 meters. What is the transmitter output signal if the fluid level is at 6.65 meters?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. what is the voltage drop over R2
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.
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?
Hysteresis can only be calculated.
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
What are all the variables that can be measured when dealing with gases?
How many coulombs of charge pass though a given point in 1 second, if the current is 15mA
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.
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?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for poisonous biohazardous material?
Which are the two major categories of pressure regulators?
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
Calculating absolute pressure is achieved by?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
In the SI system, the unit used for mass is?
There are many studies on how pressure and force affect fluids. "Fluid pressure is exerted in all directions." is one of the principles of which answer below?
Material safety data sheets are required to be accompany all controlled substances from the supplier. There are _______ that make up these sheets, providing more detail than the label. Use the answers below to fill in the blank
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?
Explosion-proof equipment has several components that make it effective. Which of the components below is a requirement for equipment to be considered explosion-proof?
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?
A mass of 6 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
(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?
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?
"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?
What is the area of a semi-circle with a diameter of 2.45m?
If a closed tank is pressurized to 26 psig and the pressure gauge at the bottom of the tank reads 53 psig, what head (in meters) of a liquid with a R.D. of 0.15 is contained in the tank
There are several common precision measurement tools available in industry. Which of the answers below best represents the tool pictured below?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a compressed air system?
Materials with four electrons in their valence shell are considered what?
There are several grades of iron and steel. Which of the answers below best represents a material that is best suited for castings because of it's superior flow characteristics when melted?