A randomized 100 question test from a pool of 1236 questions, good luck!
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 flame-proof enclosure?
60% of 54 is what?
State the number 789342.61 using decimal notation and round the answers to three significant digits.
Calculate the gain when a change from 0.5 psig to 1.35 psig in nozzle backpressure and a change from 3 psig to 12 psig in the relay output occurs.
(310101c) When ordering a GP copper tubing size, it has to be precise. Which of the measurements below would be used for ordering copper tube?
Which type of valve is pictured below?
Matter that is compose of only one atom is called what?
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?
In a baffle-nozzle-restrictor motion detector the:
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?
(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?
Determine the voltage V(ad) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
(310103f) Strain type gauges are commonly found in industry. Which of the gauges below is known to be non-linear?
What volume does a substance that has a density of 1369 kg/m³ and has a mass of 4.50 kg?
(310102m) The relationship between resistors, capacitors and time intervals is an interdependent one. Which of the answers below would be the reaction of a capacitor if you replaced a resistor with a smaller one in a simple circuit?
(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?
Of the types of link and lever calibration methods below, which one requires only one type of adjustment?
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"
There are several different ways to apply force to an actuator. Which one of the methods below would a rack and pinion actuator use for operation?
There are only a few parts to a capacitor. Which of the following terms best describes the insulator between two plates of a capacitor?
An I/P transducer is a positioner.
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?
"Is an electrical quantity that measures how the device or material reduces the electric current flow through it." is the best description for which of the terms below?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, verifying energy sources in work area are without power, would be which of the steps below?
(310104b)There are many different valves to be used for different processes. Which of the valves below would best be used in a high pressure process?
In a simple circuit, if E=4 V and R=1.75 ohms, what is the current of the circuit?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
If a closed tank is pressurized to 125.345 kPa and the pressure gauge at the bottom of the tank reads 186.456 kPa, what head (in feet) of a liquid with a R.D. of 0.05 is contained in the tan
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 prefix "Mega" can be expressed as?
If a closed tank is pressurized to 15 psig and the pressure gauge at the bottom of the tank reads 36 psig, what head (in meters) of a liquid with a R.D. of 0.45 is contained in the tank
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to density." is one of the principles of which answer below?
The power source is 24V and the resistance is 8Ω what is the current of the circuit?
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
The volume of a cylinder is calculated with which correct equation?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
"2+(9+7)=(2+9)+7" is an example of which mathematical law?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a binder?
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.
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power delivered by the battery?
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?
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?
What is the main purpose of valve positioners?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "A"?
With a reverse acting actuator, as the pressure increases:
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?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁=P₂V₂"?
In Unified National nomenclature what does the "UNC" represent in this bolt class- 1/2-12-UNC 4A
"The heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature", is the description of which physics term?
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?
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?
From the information given in the diagram below, what is the current flowing on branch R3?
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?
"Energy" is a calculated quantity. Which of the formulas below would be used to calculate work energy?
"Having only magnitude, not direction, such as speed", is a description of which mathematical term?
Under the Workers compensation act, are apprentices and learners entitled to compensation?
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 construction of batteries effects their performance. Which of the answers below would be the result of adding plate area?
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?
If heat is removed from a metal, does it contract?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 373.15 K?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
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?
To solder a joint, there are steps that need to be followed to succeed. Which of the steps below would involve having the solder flow toward the heat over the joint?
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?
(310105i) Physics has may "laws" that can be applied in industry. Which of the "laws" below would relate best to the strain of a material is proportional to the stress applied
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for dangerously reactive material?
(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?
Before allowing power to a device, it may be required to neutralize it's environment. Which of the methods below would best be described as a consistent positive pressure within an enclosure?
"The ______ is divided between two series resistors in direct proportion to their resistance." The term that best fits to complete the sentence is which of the terms below?
The result of a _______ actuator is installed with a ________ valve will be normally open, fail closed
True force balance negative feedback system consists of:
Determine the voltage V(ac) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
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?
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?
A lithium cell can produce about _____ times the voltage of an alkaline cell.
Bourdon measuring elements have tubes that are classified into three broad categories. Which of the tube types below would be used in applications having 145 kPag?
(310102c) Resistors have several construction methods. Which of the resistors below would have 1 fixed terminal and a sliding contact?
There are several vital components to a differential pressure unit in a chart recorder. Which of the components below would move as the direct result of the rotation of the torque shaft?
"The characteristic published by the manufacturer, based on tests performed in a closed system ensuring consistent flow behavior before installation." is the best description of which of the following terms?
"Energy" is a calculated quantity. Which of the units below would be used as the measurement of "Energy"?
746 Watts is equal to which of the terms below?
"Having only magnitude, not direction, such as distance", is a description of which mathematical term?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as a measurement of the total magnetic field which passes through a given area?
"To cause the valve to open, an increase in pressure to the actuator is required" is the definition of?
There are many studies on how pressure and force affect fluids. "Fluid pressure is proportional to depth." is one of the principles of which answer below?
In industry, electrostatic hazards are very important to understand. Which of the terms below is best described as a swift discharge of electric current between two objects with different charges and different numbers of electrons?
In the fraction A/B. is B the numerator?
(310102n) Instrument enclosures are all built to a NEMA standard. Which of the standards below would generally not be used to protect current electronic instrumentation?
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?
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."?
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
(310101c) Copper tube is the most used type of tubing in industry. What type of copper tubing would a colour code of yellow represent?
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be equal to "J" as a of measurement?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
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 current to an open circuit?
The MSDS for each controlled product must be: