A randomized 100 question test from a pool of 1236 questions, good luck!
From the information given in the diagram below, what is the voltage drop over R4, if R1= 3 ohms, R2= 5 ohms, R3= 7 ohms, R4= 6 ohms and the battery produces 24 V?
The height of a free standing or rolling scaffold is restricted to no more than 3 times the smallest base dimension. This guideline comes from which of the acts below?
There are 5 separate classifications in the WHIMIS system. Which of the following classifications is responsible for combustible material?
"Is the rate of doing work, it is the amount of energy consumed per unit time", is the description of which mathematical term?
A car traveling west has an initial speed of zero, and accelerates at a rate of 4 m/s² for 6 seconds. What is the displacement of the car?
Ladders have specific designs for specific applications. Which of the answers below correctly identifies the ladder in the following picture?
"The range through which an input can be varied in reverse without initiating an observable response" is the best description of which term?
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"?
If angle "Y" is equal to 28 degrees, solve for angle "X"
(310104a) The valve body contains some of the vital components in a valve. Which of the components below would be responsible for a valves flow characteristic?
"A pneumatic relay that is used to reduce the time lag in pneumatic circuits by reproducing pneumatic signals with high-volume and or high-pressure output." is the best description of which term below?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
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?
How many coulombs of charge pass though a given point in 1 second, if the current is 18mA
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?
The volume of a sphere is calculated with which correct equation?
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?
There are numerous methods to mount instruments properly. Which of the methods below is shown in the picture?
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?
There are some terms that are associated with capacitors. Which of the terms below is defined as the permittivity of a given material relative to that of the permittivity of a vacuum.
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?
The use of process seals is required in some applications. Which one of the terms below is best described as a seal that has contacts the process?
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a restricting element?
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?
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."?
(310101c) Tubing wall thickness has 3 ways of being measured. Which of the answers below is the least common of those methods?
When 125 C passes by a point in a wire in 8 seconds, what is the current in amperes?
Which of the terms below is best described by the following statement, "Defines the direction of current flow in an electrical circuit."?
In the SI system, the unit for length is?
Calculate the mass of a substance that has a density of 1479 kg/m³ and occupies a volume of 0.00631 m³
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?
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "when the magnetic flux alternates from the internal molecular structure reversals, the result is the heating of the core and wasted energy."
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the addition or release of air from the actuator to achieve proper plug placement?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
(310103f) There are three main components in a simple signal transmission system. Which of the components below is best represented by the letter "B"?
(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?
With a reverse acting actuator, as the pressure increases:
(310103d) There are several essential components to a pressure regulator. Which of the components below would be used as a measuring element?
With the proper formula, "Work" is a measurable quantity. Which answer below represents the "force that is applied" part of that equation?
Determine the volume of a tank in meters cubed, with the dimensions of 2.56 m, by 4.36 m, by 1.30 m
State the number 479.3 using engineering notation and round the answers to three significant digits.
(310102c) Resistors have several construction methods. Which of the resistors below would have the capacity to change its resistance value?
The symbol for a voltage source is which of the below?
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
(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 prefix "Centi" can be expressed as?
There are electrical properties that are inherent to coils. Which of the answers below correctly identifies the properties that a coil possesses?
"A valve that has a low pressure drop at high flow rates.", is the best description of which of the terms below?
To move 175 C across two points. when the voltage is 30 V, how much energy is required?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a glass core?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "2" in the picture below?
A mass of 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
Determine the voltage V(bd) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
With a direct acting actuator, as air 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 1 to non-hazardous?
"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?
There are several different types of scribers used in industry. Which of the scribers below best represents the following picture?
When allowing power to flow to a device, purging may be required beforehand. Which of the answers below best represents the complete volumes of air with positive pressure?
"6(5+15)=(6 x 5)+(6 x 15)" is an example of which mathematical law?
"Two angles that add to 180 degrees," is a description of which mathematical term?
There are many terms associated with "Energy". Which term below is correctly described as, "the energy of an object in motion"?
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?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "PV=ZnRT"?
When an atom gains an electron, it is commonly referred to as which of the below?
1 mechanical, or imperial, horsepower is equal to which of the below?
How many coulombs of charge pass though a given point in 1 second, if the current is 15mA
(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would best be used when connecting through the side wall of an enclosure?
If heat is removed from a metal, does it contract?
(310105i) In a common stress diagram, there are several points that are noted. Which of the points below would best be described as a change in shape of a material at low stress that is recoverable after the stress is removed?
What are all the variables that can be measured when dealing with gases?
There are many terms that are used with precise measurements. In the measurement 65.34 cm +/- 0.7 cm, which of the terms below is represented by the "+/- 0.7 cm"
(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?
"Increased flow rates occur at the end of the valve stroke, with low flow rates at the initial opening of the valve." 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?
There are two types of designations in Alberta for trades. Which of the answers below is the one condition that separates them?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "5" in the picture below?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 5 cm diameter filled with gas?
There are only a few parts to a capacitor. Which of the following terms best describes the insulator between two plates of a capacitor?
Tube fittings can be put into three general categories, each with distinct components. Which of the categories below requires a flared tube end, nut and sleeve?
(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 it with a larger one in a simple circuit?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "tolerance" rating?
(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??
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?
There are several different types of drills tools used in industry. Which of the drills below would be best used for exacting work, hole no bigger than a ½" in diameter?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, removing securing devices and any isolation points once work area is deemed safe, would be which of the steps below?
Of the list below, what is the standard unit of quantity of electricity in the International System of Units (SI)?
When higher operating pressures are used, this type of actuator produces higher thrust than diaphragm actuators.
Linear motion negative feedback system consists of:
Which valve is used for corrosive slurries?
What pressure does a column of liquid exert with a density of 48.9 lbs per cubic foot and a height of 6.5 feet
"A proportion of a whole expressed as a number between 0 and 100 rather than as a fraction."
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
If a closed tank is pressurized to 20 psig and the pressure gauge at the bottom of the tank reads 25 psig, what head (in meters) of a liquid with a R.D. of 0.65 is contained in the tank
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
If a closed tank is pressurized to 26 psig and the pressure gauge at the bottom of the tank reads 53 psig, what head (in meters) of a liquid with a R.D. of 0.15 is contained in the tank
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"
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?
(310105i) Any liquid has inherent properties associated with it. When measuring the force applied to the entire area of a liquid, which of the answers below are you trying to measure?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen arc adjustment/verification be?