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!

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?
The ratio 3.4:2.5 equal to?
"A way of concisely showing the relationship between two quantities." is a description of which mathematical term?
Of the types of link and lever calibration methods below, which one requires a minimum of two types of adjustments?
"Is the side across from a given angle of significance." is the description of which right angle triangle mathematical term?
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?
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
"An adjustment that shifts the entire scale the same amount up or down" is the definition of which adjustment?
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?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as a refinement in a measurement?
Which pressure to force converter is typically used in dial indicating pressure gauges?
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
14.696 psia is equal 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?
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
there are numerous pieces of rigging equipment. Which of the answers below correctly identifies the item in the picture that follows?
(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?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the SI relative temperature scale?
The equation to compute mechanical advantage is which one of the below?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
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?
What is the formula that the pneumatic relays amplification or gain is expressed by?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "μ" represent?
Solve for x: (3)(5)+9=x
There are several different ways to apply force to an actuator. Which one of the methods below would have the highest pressure transmission rate during operation?
When 150 C passes by a point in a wire in 6 seconds, what is the current in amperes?
In a simple circuit, if E=4 V and R=1.75 ohms, what is the current of the circuit?
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?
Which type of actuators are widely used where a large amount of mechanical travel is necessary?
A true force balance negative feedback system is a force balance system?
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?
Convert 88 PSI to kPa
If it were necessary to operate an 50-300 kPa valve actuator, but you had a 20-80 kPa control signal, the relay used would be?
"This workplace hazard consists of substances, mixtures and materials that can be classified according to their health risks and dangers." This statement best describes which of the following hazard groups?
(310103f) There are several methods for measuring process variables. Which of the transmitters below would use a fixed restrictor as well as a feedback bellows in the creation of an output pressure signal?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "V₁T₂=V₂T₁"?
"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?
State the number 23.569 x 10¹³ using engineering notation and round the answers to three significant digits.
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 373.15 K?
There are only a few parts to a capacitor. Which of the following terms best describes the insulator between two plates of a capacitor?
(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, prior to any work, the administrative procedures to be in place?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of green represent?
There are several different types of layout tools used in industry. Which of the tools below best represents the following picture?
What is the basic unit of matter?
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a two ferrule style fitting?
Find the volume in meters cubed of a cylindrical tank that has a radius of 2.4 m and a length of 1.2 m.
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."?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of refining the grain of the steel to allow for greater resistance to corrosion and temperature extremes?
Calculate the gain when a change from 0.25 psig to 1.5 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
If a battery has a rating of 120 Ah, theoretically it could provide 12 A for how long?
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
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?
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.
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 floor of the container. Of the following answers, which gas would he be testing for?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
Of the answers below, which one is a disadvantage of a Pinch valve?
What is the pressure generated by a mass of 5 kg placed on a the top of a cylindrical piston with a 2 cm diameter filled with gas?
"A whole number and a fraction combined into one number", is a description of which type of fraction?
There are several components to a properly soldered joint. Which of the components below would be used during soldering to remove the oxide layer?
What is the main purpose of valve positioners?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen pressure adjustment/verification be?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
State 7 ⁹⁄₁₇ as an improper fraction.
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?
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?
"The heat required to raise the temperature of the unit mass of a given substance by a given amount with no change in it's phase:, is a description of which physics term?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would positively pressurized equipment be primary used?
(650101a) There are three main sections in the occupational health and safety legislation in Alberta. Which of the sections below best relates to the thorough, precise safety details for suppliers?
The trigonometric ratio of tangent is calculated with which mathematical equation?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop at R1?
Calculate ⁶⁄₇ ÷ ⁴⁄₅, and state answer as a proper or mixed fraction
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "meters"?
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?
What is the gain if nozzle backpressure changes from 1.35 psig up to 2.5 psig, and the relay output changes from 4 psig to 17 psig?
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?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for oxidizing material?
What are the three main elements of a regulator?
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 75 MPag??
With a reverse acting actuator, as the pressure increases:
In the SI system, the unit for time is?
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?
How many coulombs of charge pass though a given point in 1 second, if the current is 15mA
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
In a baffle-nozzle-restrictor motion detector the:
Which organization sets standards for boots and safety glasses in Canada?
The law of electrical charges states that unlike charges attract one another and like charges repel one another.
Of the methods to render a container safe for hotwork, which of the following is the most common and most effective?
"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 the following classifications is responsible for dangerously reactive material?
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is referred to as "hard or rigid"?
The prefix "giga" can be expressed as?
Determine the voltage V(cd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
In a simple circuit, if E=3 V and R=5 ohms, what is the current of the circuit?
(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?
A vacuum gauge indicates a pressure of 15" Hg. What will the pressure be , in kPaa, if the atmospheric pressure is 13.9 psia?
If, for every 20 C of charge, 80 J of energy is available, what is the voltage?