A randomized 100 question test from a pool of 1236 questions, good luck!
What is the area of a semi-circle with a diameter of 2.45m?
From the information given in the diagram below, what is the voltage across each resistor?
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?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "tolerance" rating?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "1"?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
(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?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop over R3?
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
"The ______ is divided between two series resistors in direct proportion to their resistance." The term that best fits to complete the sentence is which of the terms below?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
There are several different notations on a length of pipe. Which of the notations below would have the smallest pipe ID?
What pressure does a column of liquid exert with a density of 56.7 lbs per cubic foot and a height of 54 inches
"The heat absorbed per unit mass of a given material at its boiling point that completely converts the material to a gas at the same temperature", is a description of which physics term?
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 0-12 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
Biological Hazards can be further broken down into subsections. Of the answers below, one is not a biological hazard, choose the answer that doesn't fit.
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?
(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 maintenance of instruments in hazardous locations of instruments?
Which of the terms below is best described by the following statement, "Defines the direction of current flow in an electrical circuit."?
The best description for "Zero adjustment" in relation to calibrating instruments is which of the following?
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to depth." is one of the principles of which answer below?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
"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?
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 roof of the container. Of the following answers, which gas would he be testing for?
(310104b) Some valves require specialized components. Which of the components below would best be used to eliminate "end play".
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of green represent?
Which of the resistors below is best described by the following statement, "A variable resistor making use of three contacts whose resistance varies with an adjustment of a sliding contact."?
Tubing has many distinctive applications in industry. Which of the associations below provides the standards commonly used for tubing in instrumentation?
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?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run cable to location?
"Having only magnitude, not direction, such as mass", 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?
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
(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?
(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?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would prevent overshoot of the Zero?
A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
(310102m) There are numerous electrical devices in a circuit. Which of the devices below can be best described as a passive two-terminal component used to store and release electrical energy?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "L" represent?
When dealing with pressure measurements, there are several vital terms that are used. Which of the terms below would best be described as a measurement that compares the amount of matter an object has to compared its volume.
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?
The perimeter of a square is calculated with which correct equation?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type ACR tube type typically have?
There are several terms that are used specifically with flammable gases and liquids. Which of the terms below is best described as the temperature at which a particular organic compound gives off sufficient vapor to ignite in air?
In relation to hacksaws, "pitch" is referred to as?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious material with other toxic effects?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
With respect to pressure drop, which control; valve has "high" recovery characteristics?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
Convert 45.9 kPa into psi
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below requires a flared tube end, nut and sleeve?
"The quantity of motion of a moving body, measured as a product of its mass and velocity," is the description of which mathematical term?
From the information given in the diagram below, what is the voltage drop over R2, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
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
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 3-15 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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 "C" in the picture below?
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?
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an air core is less preferable than an iron one.
If a battery has a rating of 60 Ah, theoretically it could provide 3.3 A for how long?
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?
Convert ¹⁰⁄₁₅ to a decimal.
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
"Any quantity with both a magnitude and a direction, such as velocity." is a description of which mathematical term?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for flammable material?
(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 signal circuits that are considered Class 1?
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 the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is Amperes of the circuit?
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the reaction of a capacitor if you replaced a resistor with a larger one in a simple circuit?
A true force balance negative feedback system is a force balance system?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a barrier that blocks any excess voltage from gaining access to a hazardous area?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
If, for every 10 C of charge, 40 J of energy is available, what is the voltage?
In a simple circuit, if I= 2 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
"Is not designed for continuous occupancy, and has limited or restricted means for entry or exit." This statement best describes which of the following terms?
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?
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
When dealing with servicing or maintaining of valves, there are some terms that need to be understood. Which of the terms below is best described as a mechanical device that physically prevents the transmission or release of energy?
What are all the variables that can be measured when dealing with gases?
Section 315(1), (2) and (3) covering guardrails can be found in which piece of legislation below?
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?
There are several different ways to apply force to an actuator. Which one of the methods below would a vane actuator use for operation?
To perform a "Zero" adjustment the order of step(s) is/are?
To alter the pressure setting on a regulator what element would you adjust?
If angle "Y" is equal to 28 degrees, solve for angle "X"
True force balance negative feedback system consists of:
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 smallest diameter of the thread?
(310104d) Control valves have a number of accessories that they can use for a variety of applications. Which of the answers below would be best reflect the common accessory for valve plug placement accuracy?
(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?
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.
If it were required to provide a regulated output that was at a lower set value, which device below would be used?
In the WHMIS system, "Acute poisons" is represented by which hazard class? Choose from the following answers.
Which are the two major categories of pressure regulators?
State ⁴⁷⁸⁄₉₈ as a mixed fraction.
(310105i) Any solid has inherent properties associated with it. Which of the terms below would best represent the final amount of stretch or elongation that the material undergoes during tensile testing?
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?