A randomized 100 question test from a pool of 1236 questions, good luck!
The equation to calculate density is?
What are the two main systems of negative feedback?
Which type of valve is pictured below?
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?
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?
(310103f) Strain type gauges are commonly found in industry. Which of the strain gauges below is the most accurate?
Batteries come in two common varieties. Which of the terms below can relate best to a non-rechargeable cell?
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?
(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 methods to routing and protecting cable, tubing, and insulated impulse lines. Which of the methods below would be best to run cable to location?
If, for every 20 C of charge, 60 J of energy is available, what is the voltage?
Most electrical properties have an equation linked to them. In the equation L= (N²μA)÷ƪ, which of the answers below does the "A" represent?
(310102c) Resistors have several construction methods. Which of the resistors below would make use of a nickle-chromium resistance wire?
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?
Maintaining all of the required PPE within the manufactures guidelines and in good working order is the responsibility of the________." Choose from the following answers to fill the blank.
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
Determine x if 5:16=x:128.
A mass of 5 kg is placed on top of a spring and that spring compresses 6 cm. What is it's spring rate?
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
What pressure is exerted at the base of a tank that is 6.7 meters high, with a liquid that has a density of 1200 kg/m³?
"An electric circuit in which the normal path of current has been interrupted." is the best description of which of the terms below?
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
14.696 psia is equal to?
"An element or device which receives information in the form of 4-20 mA and coverts it to information in the form of 3-15 psig." is the best description of which of the terms below?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate mass?
Batteries come in two common varieties. Which of the terms below can relate best to a rechargeable cell?
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?
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?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 K?
When higher operating pressures are used, this type of actuator produces higher thrust than diaphragm actuators.
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "tolerance" rating?
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?
(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 it with a smaller one in a simple circuit?
(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?
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
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?
When 15 C passes by a point in a wire in 7 seconds, what is the current in amperes?
Use the answers below to correctly fill in the blanks. "Resistance of a conductor is________ to it's ______."
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is the power absorbed by R3?
What item would be used on a pneumatic system to speed up the pneumatic signal?
To move 250 C across two points. when the voltage is 20 V, how much energy is required?
A battery has a rating of 80Ah, this means it can supply
Solve for x: (3)(5)+9=x
Around most construction tasks, eye protection is important. The selection of eye protection will rest mainly with which of the following answers? Choose the best one that applies.
Convert 4 ⅞ to an improper fraction.
Solve for the hypotenuse.
(310101c) There are several different styles of flared and flareless fittings. Which of the styles below would commonly use a O-ring seal style fitting?
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?
"An angle is one which is more than 90° but less than 180°" is a description of which mathematical term?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a glass core?
If a closed tank is pressurized to 145.345 kPa and the pressure gauge at the bottom of the tank reads 156.456 kPa, what head (in feet) of a liquid with a R.D. of 0.67 is contained in the tan
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial absolute temperature scale?
A mass of 5 kg is placed on top of a spring and that spring compresses 5 cm. What is it's spring rate?
Isolate the following equation for "v": d=vt
"Is a triangle with two congruent sides and congruent base angles." is a description of which mathematical term?
A mass of 5 kg is added to the top of a spring and causes the spring to compress 2 cm. What is the spring rate for this spring?
In industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would intrinsically safe equipment be primary used?
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 fluid level if the transmitter signal is 35 kPa
What is usually referred to when loading an ammeter?
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?
Which of the following measurements cannot be performed by a sliding caliper?
Hazardous locations in industry have been grouped for ease of understanding Which of the classes below is best described an area where combustible dust, rather than gases or liquids, may be present in varying hazardous concentration?
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?
If, for every 12 C of charge, 50 J of energy is available, what is the voltage?
In a simple circuit, if E=3 V and R=5 ohms, what is the current of the circuit?
(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 larger one in a simple circuit?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
A _________ has the air connection usually above the diaphragm
Of the types of link and lever calibration methods below, which one requires only one type of adjustment?
The result of a _______ actuator is installed with a ________ valve will be normally open, fail closed
There are numerous guidelines provided in section 18, appendix B, from the CEC. Which of the rules from that appendix would relate to certification markings
This pressure to force converter device is used in situations where space is limited?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a restricting element?
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?
Electromagnetism is a property of electrical charges moving through materials. Use one of the answers below to correctly fill in the blanks of the following sentence, "A magnetic fields strength in close proximity to conductor is _________ to the amount of current flowing through it."
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "work" part of that equation?
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
Of the valves below, which would be best for erosive service?
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "B"?
(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?
(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?
(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"?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "C"?
The sliding Vernier calipers are a widely used measuring device. Which of the parts below best relates to "3"?
"An angle that measures less than ninety degrees but more than zero degrees" is a description of which mathematical term?
A mass of 6 kg is placed on top of a spring and that spring compresses 8 cm. What is it's spring rate?
What is the name of the part of a drill bit that gets fitted into the drill spindle?
In the SI system, the unit of force is?
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?
Which are the two major categories of pressure regulators?
There is a measured rate of capacitor charging. Which of the terms below best relates to this concept?
State the number 0.004675 using scientific notation and round the answers to three significant digits.
"The relationship between valve position and flow in the in an operational process system.", is the best description of which term below?
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."?
The types of tube available in industry are somewhat application specific. Which of the tube types would be best suited for a corrosive process?
The methods to mount an instrument are as varied as the instruments themselves. Which of the mounting methods below would the process fluid need to pass through the instrument for accurate measurements?
When 30 C passes by a point in a wire in 9 seconds, what is the current in amperes?
State the number 479.3 using engineering notation and round the answers to three significant digits.
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?
When a pressure of 15 psi is applied to a diaphragm actuator with a diameter of 18 cm, what is the force in Newtons (N) that is created?