A randomized 100 question test from a pool of 1236 questions, good luck!
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
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would prevent overshoot of the URV?
The CEC generates a hazardous area result by investigating the contents of the area. Which of the designations below would be used based on the explosive characteristics of the material?
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
Occupational exposure limits have threshold limits. There are three of these threshold limits that are used, of the answers provided, which is not a value used?
(310105d) Heat is produced when friction occurs during motion. Which of the terms below correctly identifies the type of friction that produces of this heat?
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?
Chart recorders still have a place in industry for specific applications. Which of the applications below would be used to fulfill ABSA requirements?
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
A 100V power supply is outputting 2A, what size of resistor is in the circuit?
"Any quantity with both a magnitude and a direction, such as velocity." is a description of which mathematical term?
(310105i) In a common stress diagram, there are several points that are noted. Which of the points below would best be described as a change in shape of a material at low stress that is recoverable after the stress is removed?
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?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Power" use as it's unit of measurement?
Under the Workers compensation act, are apprentices and learners entitled to compensation?
Capacitance is a measurable quantity. Which of the answers below represents the SI unit for capacitance?
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would capillary or impulse line to the instrument be used?
With a reverse acting actuator, as the pressure increases:
In a simple circuit, if I= 3 A and R=5 ohms, what is the voltage drop over the resistor of the circuit?
The law of electrical charges states that like charges attract one another, an unlike charges repel one another.
Lenz Law states:
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "ppwer" rating?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
"Two angles that add to 180 degrees," is a description of which mathematical term?
(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 cathodic protection?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a medical gas system?
State the number 789342.61 using decimal notation and round the answers to three significant digits.
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 numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
(310101c) There are many specialized applications for copper tube. Which of the copper tube colour code would be used in a compressed air system?
All safety enclosures are tested in the factory to certify the maximum pressure released in an explosion that it can withstand. Which of the answers below would describe the testing required for a explosion-proof enclosure?
Gauge pressure is?
Of the terms below, what is "Power" measured in?
In the SI system, the unit used for mass is?
A mass of 5 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
There are a number of common parts to any valve. Which of the terms below would best be described as the object supplying the opening or closing motion of the valve?
The CEC has classified hazardous areas by a specific set of terms. Which of the answers below contains those terms in the correct order?
Solve for the hypotenuse.
There are several terms that are used specifically with flammable gases and liquids. Which of the terms below is best described as the minimum or maximum concentration levels of a flammable or combustible material for ignition?
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 a flame-proof enclosure?
The symbol for a voltage drop is which of the below?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
In the contract of apprenticeship, there are several responsibilities that all parties have. Which of the parties below would have the responsibility to complete acceptance and release cards are properly filled out and submitted to the proper authority?
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type L tube type typically have?
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 decrease in resistive load?
The inert purge gases for GMAW and GTAW welding processes are non-toxic, but are still dangerous. In what situation below would these gases be a danger?
(310102m) The charging and discharging of a capacitor is a mathematical relationship. In the equation, τ=R x C, which of the answers below would best refer to the "R"?
The equation to calculate density is?
"An electric circuit in which the electric passes through each circuit element in order." is the best description for which of the terms below?
There are several terms that are used to describe the features of a particular thread type. Which of the answers below would best describe the "³⁄₁₆" in the bolt designation ³⁄₁₆-12 UNF x 6?
There are several different ways to apply force to an actuator. Which one of the methods below would a pneumatic source of air not be required for operation?
There are several different committees in the Alberta apprenticeship system. Which of the committees below would be directly responsible for determining the equivalency of training done outside Alberta?
Which of the valves below would be used for isolation on each side of a control valve?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where gases or vapours are present sufficient quantity to produce explosive or ignitable mixtures.
A moment balance negative feedback system is a motion balance system?
Isolate the following equation for "v": d=vt
The law of electrical charges states that unlike charges attract one another and like charges repel one another.
(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?
If the total error is 1.7 and the dead band error is is 0.5, what is the hysteresis value?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
The ability of a material to concentrate magnetic lines of force within a material is called?
(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?
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 100 °C?
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?
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
A moment balance negative feedback system is a force balance system?
Choose the answer below that has the words in order to correctly fill in the blanks. "A per unit volume of free electrons that is _______, offers ______ resistance to current"
"The production of an electromotive force in one circuit by a change in current in a separate circuit." is the best description of which of the terms below?
(310104a) There are numerous components to a valve. Which of the components below would best be referred to as a gland that seals the dynamic portion of the valve against leakage?
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?
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?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a single ferrule style fitting?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
Although there are numerous type of batteries, they all share a common construction. Which of the answers below contains all the required parts of a battery?
In a simple circuit, if I= 2 A and R=3 ohms, what is the voltage drop over the resistor of the circuit?
Angle motion negative feedback system consists of:
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly identify one of those conditions?
Each one of the installations of purge/pressurization has its own requirements for additional equipment. Which of the installations below would also require a low purge gas pressure audible alarm only?
"The lag in response exhibited due to the absorption of energy in a measuring instrument." is the best description of which term?
(310105d) When dealing with displacement, there are two qualifiers used. Which of the answers below would be a quantity that is fully described by a numerical value alone?
1 mechanical, or imperial, horsepower is equal to which of the below?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
The ratio 3.4:2.5 equal to?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
If a closed tank is pressurized to 10 psig and the pressure gauge at the bottom of the tank reads 45 psig, what head (in meters) of a liquid with a R.D. of 0.78 is contained in the tank
In the WHMIS system, "Infectious materials" is represented by which hazard class? Choose from the following answers.
In any intrinsically safe loop there are several main items that are vital to the loop. Which of the answers below contains those items?
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?
How many coulombs of charge pass though a given point in 1 second, if the current is 18mA
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 "⅜" refer to?
State 7 ⁹⁄₁₇ as an improper fraction.
An I/P transducer is a positioner.
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
Copper tube is commonly available in two types of tempers. Which of the answers below best describes a tube that is slowly heated and cooled providing a soft flexible result?
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?