A randomized 100 question test from a pool of 1236 questions, good luck!
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?
Calculate the normal force exerted by an object that has a mass of 6732 grams
State ⁴⁷⁸⁄₉₈ as a mixed fraction.
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 0-14 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
In Unified National nomenclature what does the "1/2" represent in this bolt class- 1/2-12-UNC 3A
A pressure gauge at the bottom of a tank indicates a pressure of 7.9 psi. The relative density of the liquid is 0.87. What is the depth of the liquid in feet?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the enclosures inlet airflow rate be measured for purging times?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as electrical/electronic circuitry that is incapable, under normal operating conditions, of causing ignition of a specified flammable gas-air, or vapor-air,mixture?
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
In a simple circuit, if E=6 V and R=5 ohms, what is the current of the circuit?
Purging is an effective means of reducing the potential hazards of an enclosure. Which of the answers below best describes the type of pressure produced in the enclosure by purging?
In the WHIMIS system, the workplace labels must display 3 pieces of information. Of the answers provided, choose the one that is not needed.
State the number 4.785 x 10 ⁻⁵ using decimal notation and round the answers to three significant digits.
There are several grades of iron and steel. Which of the answers below best represents a material that is extremely brittle because of it's high carbon content?
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?
There are only a few parts to a capacitor. Which of the following terms best describes the insulator between two plates of a capacitor?
The point when increasing current will not increases magnetism in an electromagnet is call?
(310104b) There are several connection methods available for valve installation. Which of the connection methods below would be best suited to a valve that would require constant replacement?
The industry committee network is made up of three bodies. Which of the bodies below acts as a link between the AIT Board and the LACs?
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below can be best described as, "the ratio of the density of a substance to the density of water."?
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.
A parallel circuit reacts in specific ways to the addition of a resistive load. Which of the answers below best describes the reaction to an increase in resistive load?
"Increased flow rates occur at the end of the valve stroke, with low flow rates at the initial opening of the valve." is the best description of which of the terms below?
Convert 88 PSI to kPa
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
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?
What percentage of 35 is 21?
To preform a "Span" adjustment the order of the step(s) is/are?
What are the two main systems of negative feedback?
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used when an enclosure needs do be reduced from a Class I, Zone 1 to a Class I, Zone 2?
Convert 175 psi to mmW.C. Barometer is 99.6 kPa(a)
(310102c) Manufactured resistors have two broad categories. Which of the resistors below would be considered as a fixed resistor?
If the total error is 1.3 and the dead band error is 0.7, what is the hysteresis value?
Newton's first law is also known as?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
"The distance traveled divided by the time elapsed to reach final position." is the description of which mathematical term?
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?
There are several methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the answers below would be best describe a major difference between metal conduit and cable tray?
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
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"?
Of the clothes to wear while cutting, welding or grinding, choose from the answers below the best material to have.
Chart recorders still have a place in industry for specific applications. Which of the applications below would be used to fulfill AER requirements at royalty trigger points for natural gas?
Use the answers below to fill in the blanks of the following sentence. "The _____ of the plates in a capacitor is _______ to it's capacitance."
"Hydrostatic" pressure is sometimes referred to as
There are several types of purge/pressurization permits that are available. Which of the permits below would best be used with a pressurized enclosure that contains equipment which is capable of ignition?
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 triangle where one of its interior angles is 90 degrees." is a description of which mathematical term?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious material with other toxic effects?
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly fill the blank in the statement, "The generation of an electrostatic charge is ________ in conditions that are humid?"
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
Many electrical properties have specific symbols attached to them. Which of the symbols below would be the correct for inductance?
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the current of the circuit?
Worker education is the responsibility of the:
All objects have mass which is affected by gravity. Which of the answers below represents the USCS approximate value for acceleration due to gravity?
The result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
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 distance from the crest of one thread to another crest measured along the length of the thread?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
(310105d) Efficiency is one of the benchmarks that is used for rating machines. Which of the measurement units below is used with efficiency itself?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a ceramic core?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
There are many studies on how pressure and force affect fluids. "Horizontal runs do not increase pressure." is one of the principles of which answer below?
(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?
The time constant for a charging capacitor is a measurable quantity. Which of the answers below represents the correct formula to use for this calculation?
State the number 45.7258 x 10¹¹ using engineering notation and round the answers to three significant digits.
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "V₁T₂=V₂T₁"?
In the WHMIS system, "Dangerously reactive material" is represented by which hazard class? Choose from the following answers.
State the following number, 15.198*10¹³ using engineering notation and round the answers to 3 significant digits.
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?
Calculate the relative density for a liquid whose density is =743.2 kg/m³.
Density is a key component for measurement. Which of the formulas below represent the proper equation to find the density of an object?
From the information given in the diagram below, what is the voltage drop over R1, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
Lenz Law states:
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?
Calculate 4/7 + 2/5, and state answer as a proper or mixed fraction
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "L" represent?
"A way of concisely showing the relationship between two quantities." is a description of which mathematical term?
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?
(310104b) There are many different valves to be used for different processes. Which of the valve types below would be considered self-cleaning?
(310101c) There are a wide variety of tubing fitting types. Which of the fittings below would best be used when terminating tube connections?
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?
(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 tube to tube?
To move 50 C across two points. when the voltage is 5 V, how much energy is required?
How many electrons does 134.5 x 10¹⁹ represent?
If a closed tank is pressurized to 16 psig and the pressure gauge at the bottom of the tank reads 31 psig, what head (in meters) of a liquid with a R.D. of 0.37 is contained in the tank
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most able to discharge loads at high rates for an extended period of time?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "6" in the picture below?
There are many terms that are used with precise measurements. Which of the answers below is the term used when the answer to a problem has more significant digits that the measurements that have been recorded?
(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 standard set for workers?
(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 installation of an electrical communication system?
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."?
When higher operating pressures are used, this type of actuator produces higher thrust than diaphragm actuators.
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
When a pressure of 15 psi is applied to a diaphragm actuator with a diameter of 18 cm, what is the force in Newtons (N) that is created?
State 3 ⅞ as a mixed fraction.
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
What is the pressure generated by a mass of 4 kg placed on a the top of a cylindrical piston with a 7 cm diameter filled with gas?
"Which of the electrical terms below can be best described as "consisting of one or more electrochemical cells, which transform stored chemical energy directly into electrical energy."
Ozone, carbon monoxide, hydrogen chloride and phosgene are all gases that can be created by different types of welding. Of the answers below, choose the best one that they all have in common.