A randomized 100 question test from a pool of 1236 questions, good luck!
With a direct acting actuator, as air pressure increases:
Choose the answer below that has the words in order to correctly fill in the blanks. "A ______ in per unit volume temperature of a conductor, offers ______ resistance to current"
If a pressure change of 20 kPa to 100 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 0.02 m².
State the number 7.428 using scientific notation and round the answers to three significant digits.
"A particular material or class of materials, that is a hazardous substance in workplace air, has an upper limit on the acceptable concentrations." This statement best describes which of the following answers?
A tank contains a liquid that has a R.D. = 1.15. The depth of the liquid is 6.7 meters. What is the pressure in kPa at the base of the tank?
"Is the measure of the amount of space inside of a solid figure, like a cube, ball, cylinder or pyramid." is the description of which mathematical term?
The equation to calculate density is?
When used to cut mild steel. what is the recommended angle for a cold chisel?
(310103d) Regulators deal with a consistent pressure reduction. Which category of regulator is pictured below?
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 "A greater amount of free electrons reside in a conductor of greater diameter per linear unit."
There are several key concepts to understand when dealing with pressure measurement. Which of the terms below would best be described as,"the measure of the intensity of the force imposed on this object by the local gravitational field"?
A worker is grinding 6m away from another worker refueling a diesel welder. Is there any workplace infraction occurring in this situation? Choose the best answer below for answering this.
What is the smallest charged particle?
How many coulombs of charge pass though a given point in 1 second, if the current is 18mA
Calculate the density of a substance that has a mass of 9.8 kg and is contained in a space that has a volume of 0.00756 m³
Alloy steels are very common in industry. Which of the types of alloy steel would "Austenitic" piping be?
(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??
Air and iron are the two types of electromagnetic cores. Choose from the answers below to explain why an iron core is more preferable than an air one.
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?
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?
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?
To perform an "Angularity" adjustment, the order of step(s) is/are?
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?
A true force balance negative feedback system is a motion balance system?
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the amount of work done in 15 mins by a 45 hp motor?
Materials with four electrons in their valence shell are considered what?
(310103d) There are several different designs of regulator. Which of the loading element designs below would have to slowest response to changes in downstream pressures?
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
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 letter "C" in the picture below?
"If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A" is a description of which one of Newton's laws?
Isolate for"h" in the following equation y=(h-t)/r
(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 employers?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a restricting element?
Calculate the gain when a change from 1.25 psig to 2.0 psig in nozzle backpressure and a change from 3 psig to 15 psig in the relay output occurs.
The law of electrical charges states that unlike charges attract one another and like charges repel one another.
"A fraction that is less than one, with the numerator less than the denominator", is a description of which type of fraction?
A standard pipe size chart will have piping up to 24". At which pipe size does the OD in inches, match the NPS in inches?
"A hazard within the workplace that can harm the body without necessarily touching it. Vibration and noise are examples of this type of hazards." This statement best describes which of the following hazard groups?
Solve for x: 45-200÷10=x
When wire rope is used for lifting purposes, there are several safety factors involved. Which of the answers below best represents the safety factor for rigging in general?
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?
What are the two main systems of negative feedback?
If a closed tank is pressurized to 103.345 kPa and the pressure gauge at the bottom of the tank reads 145.456 kPa, what head (in feet) of a liquid with a R.D. of 0.37 is contained in the tank?
1 pound force is equal to
If a closed tank is pressurized to 14 psig and the pressure gauge at the bottom of the tank reads 30 psig, what head (in meters) of a liquid with a R.D. of 0.87 is contained in the tank
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?
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?
1 mechanical, or imperial, horsepower is equal to which of the below?
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 several terms that are used to describe the features of a particular thread type. Which of the terms below would best describe a thread with a 16 TPI?
(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?
Determine the voltage V(bc) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would a thread-o-let welded to the process line be considered?
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?
Reduce ¹²⁄₆₀ and state as a proper or mixed fraction.
What is the density of water?
In the WHMIS system, "Flammable and combustible material" is represented by which hazard class? Choose from the following answers.
There are numerous designs of batteries. Which of the batteries below would be generally considered to be the most common?
The result of a _______ actuator is installed with a ________ valve will be air-to-open
The CEC generates a gas grouping based on the potential combustion, and results of combustion of each type. Which of the groups below would Hydrogen belong to?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen position adjustment/verification be?
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?
(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 instruments in a hazardous location?
In the WHMIS system, "Other poisons" is represented by which hazard class? Choose from the following answers.
Which of the terms below is the best definition by the statement, "An electric current in which the flow reverses consistently."?
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?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate area?
If a compound were to be broken down into its simpler components, of the options below, what would it be called?
The basic unit of matter is called?
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 visual indicator only?
(310103f)There are several methods for measuring process variables. Which of the transmitters below would use cavities filled with oil used as a dielectric in the creation of an output signal?
What are all the variables that can be measured when dealing with gases?
Reduce ⁹⁄₁₄ and state as a proper or mixed fraction.
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
(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 result of a _______ actuator is installed with a ________ valve will be normally closed, fail open
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?
The Si unit for measuring force is the Newton. Which of the answers below correctly states the proper formula to calculate this unit?
Before entering a confined space for the first time or re-entering after a break, it is a good practice to do which of the following?
What volume does a substance that has a density of 1369 kg/m³ and has a mass of 4.50 kg?
"A flow characteristic that provides maximum change in flow rate at initial valve stroke opening." is the best description of which of the terms below?
There are several different types of carbon steel in any piping system. Which of the types below would have a 0.3-0.6% carbon content?
Convert ¹⁸⁄₅ to a decimal.
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?
In this circuit R1= 4 ohms, R2= 5 ohms and R3=9 ohms with the battery producing 40V. What is the voltage drop over R3?
In the WHMIS system, this symbol represents which hazard class? Choose from the following answers.
The intensity of sound is measured in dBA. In the workplace the suggested dBA level for wearing hearing protection over an 8 hour day would be which of the below?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
This pressure to force converter device is used in situations where space is limited?
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?
The prefix "Micro" can be expressed as?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for infectious biohazardous material?
When dealing with welding gases and fumes, it is a good practice to limit your exposure to them. The first option to reduce exposure to these fumes and gases is to weld in which of the following locations?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for dangerously reactive material?
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
In Unified National nomenclature what does the "1/2" represent in this bolt class- 1/2-12-UNC 3A
A "wheel and axle" is an example of which type of machine?
Which pilot valve has two common supply connections, and two connections for output?
(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??