A randomized 100 question test from a pool of 1236 questions, good luck!
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for corrosive material?
(310105d) Scalar quantities are all a measurable amounts. Which of the answers below would "Work" use as it's unit of measurement?
There are some troubleshooting issues that can arise while soldering. Which of the issues below would be best described as a heat transfer loss from the soldering tip?
"Having only magnitude, not direction, such as mass", is a description of which mathematical term?
Isolate for"h" in the following equation y=(h-t)/r
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?
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?
"At any junction in an electrical circuit, the sum of currents flowing in equal to the sum of currents flowing out ." This statement is the best description of which of the electrical laws below?
There are several different types of carbon steel in any piping system. Which of the types below would have less than a 0.3% carbon content?
60% of 54 is what?
In a simple circuit, if E=4 V and R=1.75 ohms, what is the current of the circuit?
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends in line and one pipe connector?
"The removal of lead sulfate crystals, which reduces the effectiveness of lead-acid, sealed AGM or flooded (wet cell-filler caps) batteries." is the best definition of which of the terms 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?
(310102m) A capacitor's voltage decreases in a very predictable way. Which of the answers below represents the total time constant intervals required to achieve a full discharge in a typical capacitor?
Calculate 2 5/6 -1 3/4, and state answer as a proper or mixed fraction
Locking out energy sources physically is a vital part of servicing valves. Which of the valves below would you use a circular lockout device on the handle?
State ⁸⁴⁵⁶⁄₂₄₃ as a mixed fraction.
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 1 to non-hazardous?
If a closed tank is pressurized to 134.345 kPa and the pressure gauge at the bottom of the tank reads 169.456 kPa, what head (in feet) of a liquid with a R.D. of 0.24 is contained in the tan
(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??
With respect to pressure drop, which control; valve has "high" recovery characteristics?
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?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would a "hose test" pass be required?
1 psi is equal to _____ kPa
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
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?
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the voltage across a steady state capacitor after 1 tau of it discharging?
(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?
If field servicing, or removing, a control valve from a piping system it is important to recognize the piping isolations. Which of the isolations below correctly identifies the following picture?
What is the SI unit of pressure?
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "the point at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied."?
Convert the following quantities to the units asked for: 27000 seconds to hours.
Of the adjustments below, which is the most common adjustment made?
Which of the terms below is measured in "Joules"
The desiccant head adsorbes water vapour due to which?
"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 volume of a cube is calculated with which correct equation?
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 basic unit of matter is called?
Certain categories of tubing has specific applications in industry. Which of the categories below would be used in applications where no internal pressures need to be tolerated?
OH&S recognizes that there are a number of hazards on any jobsite. Which of the answers below best represents the number of broad categories that it has grouped those hazards into?
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?
(310104b) There are many different valves to be used for different processes. Which of the valve types below would be considered self-cleaning?
"5 x 7=7 x 5" is an example of which mathematical law?
Materials with one to three electrons in their valence shell are considered what?
Moment balance Negative feedback system consists of:
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
Reduce ⁹⁄₁₄ and state as a proper or mixed fraction.
There are a number of factors determining the resistance to current of a material. Which one of the terms below would be best described as "The amount of opportunities for the atoms of the conductor to affect current flow per linear unit"
In the fraction A/b, is A the denominator?
If a tool increases from $43 to $76, what is the percentage increase?
The supplier label:
There are several different ways to apply force to an actuator. Which one of the methods below would use a diaphragm for operation?
Of the types of link and lever calibration methods below, which one requires a minimum of 4 adjustments?
A moment balance negative feedback system is a motion balance system?
What size of resistor must be connected in series with a 10k potentiometer to get an output of 7V to 20V if the supply of the circuit is 20V?
When 150 C passes by a point in a wire in 6 seconds, what is the current in amperes?
Due to a lengthy transmission distance a control valve is responding slowly. The device that would improve the response speed of the valve would be?
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
There are many different types and styles of tubing in industry, but they can all be grouped into categories. Which of the answers below best represents all of the categories of tubing?
(310104a)There are numerous components to a valve. Which of the components below would best be referred to as a seal for the static portion of the valve against leakage?
There are several definitions used frequently in the CEC. "Limitation of current and voltage in the circuit prevents excessive heat and the formation of ignitable sparks" would best describe which of the answers below?
The CEC generates a gas grouping based on the potential combustion, and results of combustion. Which of the groups below would other dusts that are combustible belong to?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a glass core?
If a closed tank is pressurized to 12 psig and the pressure gauge at the bottom of the tank reads 56 psig, what head (in meters) of a liquid with a R.D. of 0.75 is contained in the tank
How many coulombs of charge pass though a given point in 1 second, if the current is 16mA
Which pressure to force converter is typically used in dial indicating pressure gauges?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
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?
State the number 0.05634 x 10⁻¹³ using scientific notation and round the answers to three significant digits.
101.325 kPa is equal to?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
What volume does a substance that has a density of 1369 kg/m³ and has a mass of 4.50 kg?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
In industry, electrostatic hazards are very important to understand. Which of the terms below can correctly be described as a charge created when two objects that are not good electrical conductors are rubbed together, and electrons from one of the objects rub off onto the other?
How is the term "Cv" calculated?
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 125 C passes by a point in a wire in 8 seconds, what is the current in amperes?
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?
(310104b) Valves are a piece of equipment that needs to be replaced over time. Before removing,or servicing, an high pressure in-line valve, which of the procedures is the worker also responsible for?
There are 3 major components to a zener intrinsically safe barrier. Which of the answers below would be best describe the component that limits the voltage delivered to the field device?
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 "SS" refer to?
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?
To move 225 C across two points. when the voltage is 45 V, how much energy is required?
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 0-20 meters. What is the transmitter output signal if the fluid level is at 6.65 meters?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "6"?
Calculate the gain when a change from 0.85 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 18 psig in the relay output occurs.
The Si unit for measuring force is the Newton. Which of the answers below is equal to an object that has a mass of 65830 g?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
The result of a _______ actuator is installed with a ________ valve will be normally open, fail closed
All objects have mass which is affected by gravity. Which of the answers below represents the USCS approximate value for acceleration due to gravity?
(310105d) Displacement quantities are all a measurable amounts. Which of the answers below would "Kinetic friction" use as it's unit of measurement?
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as equipment or circuits that are tested under fault situations?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
Isolating process lines with a physical barrier is one of the steps for safe field servicing of a control valve. Which of the blank types below would best be described as having a blind and a spacer together in one assembly?
Solve for the hypotenuse.
If a closed tank is pressurized to 105.345 kPa and the pressure gauge at the bottom of the tank reads 198.456 kPa, what head (in feet) of a liquid with a R.D. of 0.11 is contained in the tan