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!

(310103f) There are several methods for measuring process variables. Which of the transmitters below would use capacitor plates in the creation of an output signal?
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
What pressure does a column of liquid exert with a density of 48.9 lbs per cubic foot and a height of 6.5 feet
Solve for the missing side.
"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?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be moderately sensitive to pressure changes?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
"A pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid," is a description of which principle?
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?
Before working on a task, you notice that a trench with vertical rebar ends is directly under the work location. Harnesses and anchor points are provided at the task location by the employer, which you are instructed to use. The piece of legislation that best covers the action of the employer is which of the below?
(310101c) For higher working pressures, generally the wall thickness of tubing will increase. Which of the answers below would best relate to the effect of a tube's increased wall thickness?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the detailing of employer obligations that must be fulfilled?
Calculate the gain when a change from 1.25 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 15 psig in the relay output occurs.
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a pressure sensing diaphragm in the creation of an output signal?
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?
Convert 18.5 psi into inches W.C.
There are several common precision measurement tools available in industry. Which of the answers below best represents the tool pictured below?
Having to convert between SI and USCS measurements is commonplace in industry today. Which of the answers below is the correct conversion for 45 lbf?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, isolating all sources of energy to the work area would be which of the steps below?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
Determine x if 5:16=x:128.
In the WHMIS system, "Corrosive materials" is represented by which hazard class? Choose from the following answers.
When 20 C passes by a point in a wire in 12 seconds, what is the current in amperes?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "5"?
What is the name of the tool that is used on round stock to cut external threads?
"A quantity, such as mass, length, or speed, that is completely specified by its magnitude and has no direction." is a description of which mathematical term?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the pressure of a given mass of gas varies directly with the absolute temperature of the gas, when the volume is kept constant."?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
(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??
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
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?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below can be best described as the the process of accumulating energy in a capacitor?
What is the area of a rectangles with sides measuring 15.5 cm, and 12.6 cm?
The basic unit of matter is called?
From the information given in the diagram below, what is the current flowing on branch R3?
This pressure to force converter device is used in situations where space is limited?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would best be used when connecting tubing to piping?
There are many electrical symbols used in industry today. Which of the answers below correctly identifies the following symbol?
In the WHMIS system, "Flammable and combustible material" is represented by which hazard class? Choose from the following answers.
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 6 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?
Matter that is compose of only one atom is called what?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
Solve for the hypotenuse.
Alloy steels are very common in industry. Which of the types of alloy steel would "Martensitic" piping be?
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most maintenance free?
7 coulombs of charge require how many electrons?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁n₂T₂=P₂V₂n₁T₁"?
In a simple circuit, if I= 3 A and R=5 ohms, what is the voltage drop over the resistor of the circuit?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, testing of the isolation to all sources of energy to the work area, would be which of the steps below?
There are several types of soldering irons that are available in industry. Which type of iron below would rely on a voltage being produced when the tip touches the work to be done?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below relates best to the plotting of a capacitor that is alternately charging and discharging?
To alter the pressure setting of a regulator, you would adjust what?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
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?
(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?
"The law that the algebraic sum of the products of the current and resistance in the conductors forming a closed loop in a network is equal to the algebraic sum of the electromotive forces in the loop." This statement is the best description of which electrical law below?
Convert ⅘ to a decimal.
When an atom gains an electron, it is commonly referred to as which of the below?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "5" in the picture below?
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?
In Unified National nomenclature what does the "1/2" represent in this bolt class- 1/2-12-UNC 3A
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
Which valve is used for corrosive slurries?
If a battery has a rating of 133 Ah, theoretically it could provide 5.75 A for how long?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a two ferrule style fitting?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=nRT"?
If a tool increases from $43 to $76, what is the percentage increase?
Choose the answer below that has the words in order to correctly fill in the blanks. "A ______ in per unit volume temperature of a conductor, offers ______ resistance to current"
Unless otherwise stated by the manufacturer, there are several general practices when installing a chart recorder. Which of the answers below correctly identifies the maximum distance between DPU and recorder?
Which of the electrical terms below can be best described as one that "internally converts stored chemical energy into electrical potential energy."
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "4" in the picture below?
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.
"Is an area where no movement occurs with the actuators change in direction." describes which term?
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?
Proper choices need to be made with the mounting of instruments. Which of the answers below would be a disadvantage of a instrument stand that has a cable mount?
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?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the SI absolute temperature scale?
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
The standard unit of resistance is which of the below?
Covert 3 ⅘ to an improper fraction
In the WHMIS system, "Other poisons" is represented by which hazard class? Choose from the following answers.
The main function of a valve positioner is which of the below?
Electrical conduit is used to protect the cables running to the instruments. Which of the types of conduit below would be used in a corrosive atmosphere?
"To cause the valve to close, an increase in air pressure to the actuator is required" is the definition of?
There is a safe ratio for the use of extension ladders. If there is a ladder extending 18 ft vertically, how far from the wall should the base of the ladder be?
There are many different parts to a galvanically isolated barrier. Which of the components below limits the voltage in a short circuit condition?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
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?
"Is the side next to the angle of significance." is a description of which right angle triangle mathematical term?
Which of the following measurements cannot be performed by a sliding caliper?
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Acetylene belong to?
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 2 to non-hazardous?
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?