A randomized 100 question test from a pool of 1236 questions, good luck!
Of the methods to render a container safe for hotwork, which of the following is the most common and most effective?
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.
Calculate the force in pounds which will be developed when a liquid pressure of 76 lbs/in² is applied to an area of 54 in².
(310102g) Energy is lost due to undesirable resistance in any circuit. Which of the terms below refers to the power that is lost in a conductor during the transmission phase?
The two main functions of a negative feedback system are:
There are several different committees in the Alberta apprenticeship system. Which of the committees below would be directly responsible for resolving any disputes between employer and apprentice?
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 an explosion-proof enclosure?
The categories of workplace hazards have been broken down to _____ main areas. Using the answers below fill in the blank.
What is the mass that is placed on a piston above a gas if the pressure exerted is 78554 Pa on a cylinder that has a 3 cm diameter
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
The best description for "Span error" in relation to calibrating instruments is which of the following?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 3 cm diameter filled with gas?
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?
Which of the welding processes below would welding goggles be worn?
(310104d) There are several features available on valve positioners in industry today. Which of the features below can be best described as one that uses negative feedback in it's operation?
State the number 479.3 using engineering notation and round the answers to three significant digits.
(310105d) Displacement quantities are all a measurable amounts. Which of the answers below would "Kinetic friction" use as it's unit of measurement?
Which type of valve is pictured below?
The statement, "Whatever is done to one side of an equation, can be done to the other side of the equation" is false.
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "B"?
The properties of a gas are unique to its molecular make-up. Which of the terms below would best be defined as "is the pressure required to liquefy a gas at its critical temperature."?
Circular chart recorders have several specific accessories. Which of the answers below would best describe the accessory that moves the paper chart at a steady rate?
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?
In the SI system, the unit for length is?
Of the list below, what is the standard unit of quantity of electricity in the International System of Units (SI)?
Gasses react to the increase or decrease of pressure in measurable ways. Which of the terms below describes the reaction of an enclosed gas to a pressure increase?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a barrier that conditions signals received or transmitted to a hazardous area
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
“The force acting on an object is equal to the mass of that object times its acceleration.” is the description of which one of Newton's laws?
A mass of 5 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
"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?
From the information given in the diagram below, what is the total parallel resistance of the circuit?
If, for every 30 C of charge, 60 J of energy is available, what is the voltage?
If the total error is 1.9 and the dead band error is is 0.8, what is the hysteresis value?
Which of the laws below can be best described by the following statement, "The strength or intensity of an unvarying electric current is directly proportional to the electromotive force and inversely proportional to the resistance of the circuit"?
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?
What percentage of 35 is 21?
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the conversion of 278 hp to watts?
The CEC has classified hazardous areas by a specific set of terms. Which of the answers below contains those terms in the correct order?
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?
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?
Each one of the installations of purge/pressurization has its own requirements for purging times. Which of the installations below would the outlet airflow rate be measured for purging times?
(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?
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?
65% of 765 is equal to?
1 pound force is equal to
"An electric circuit in which the normal path of current has been interrupted." is the best description of which of the terms below?
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?
Newton's first law is also known as?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
(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 signal circuits that are considered Class 2?
Which pilot valve has two common supply connections, and two connections for output?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "2"?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "ƪ" represent?
What is the name of the tool used to cut internal threads after drilling a hole?
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 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 3-15 meters. What is the transmitter output signal if the fluid level is at 8.65 meters?
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?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for compressed gases?
There are several equations related to magnetism. Which of the terms below is represented by the equation "B=ᶲ⁄ₐ"?
"Any quantity with both a magnitude and a direction, such as velocity." is a description of which mathematical term?
State the following number, 0.005687 using scientific notation and round the answers to 3 significant digits.
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "L" represent?
8 coulomb of charge requires how many electrons?
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?
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of refining the grain of the steel to allow for greater resistance to corrosion and temperature extremes?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 100 °C?
If the total error is 1.3 and the dead band error is 0.7, what is the hysteresis value?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
(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?
Determine the voltage V(ab) with R1=70k ohms, R2= 100k ohms and R3= 360K ohms, with a current of 0.754 mA
State the number 236.478 x 10¹¹ using scientific notation and round the answers to three significant digits.
Solve for the missing side.
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
When making an angularity adjustment, what is the first adjustment made?
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate close to an orifice plate?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for corrosive material?
Electrostatic generation can be happen in many conditions. Which of the answers below would correctly identify one of those conditions?
There are several properties to a circuit. Which of the terms below best defines the opposition to a change in current?
(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??
What is the smallest charged particle?
Calculate the normal force exerted by an object that has a mass of 6732 grams
"A triangle in which all three sides are equal." is a description of which mathematical term?
State the following number, 15.198*10¹³ using engineering notation and round the answers to 3 significant digits.
There are two different ways of identifying general purpose tube. If you see "4 mm-SS-1.452" printed on the outside of the tube, what would the "SS" refer to?
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?
A moment balance negative feedback system is a force balance system?
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
Chart recorders have a couple of specific applications. Which application below would best describe the charting of results from a flow rate across an orifice plate?
Determine x if 5:16=x:128.
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?
In a simple circuit, if E=4 V and R=2 ohms, what is the current of the circuit?
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "ia" equipment can withstand?
Which type of valve is pictured below?
Class I, Zone 1 locations can use i, ia and ib intrinsically safe equipment. Which of the answers below correctly identifies the number of faults that the "ib" equipment can withstand?
If a closed tank is pressurized to 18 psig and the pressure gauge at the bottom of the tank reads 39 psig, what head (in meters) of a liquid with a R.D. of 0.76 is contained in the tank
"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?