Advance your career with help from our practice exams

Instrumentation: FIRST PERIOD

A randomized 100 question test from a pool of 1236 questions, good luck!

Express ³²⁄₄₄ as a percent.
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?
Absolute and relative temperature scales each have their [own names for Imperial and SI scales. Which of the answers below correctly identifies the Imperial relative temperature scale?
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?
The construction of batteries effects their performance. Which of the answers below would be the result of adding plate area?
Many electrical properties have specific symbols attached to them. Which of the symbols below would be the correct for inductance?
"A two ratios that are equal in an equation." is a description of which mathematical term?
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type L tube type typically have?
(310102m) There are numerous electrical devices in a circuit. Which of the devices below can be best described as a passive two-terminal component used to store and release electrical energy?
Each one of the installations of purge/pressurization has its own requirements for internal equipment. Which of the installations below would be able to use equipment rated as Zone 2?
There are many different applications for copper tube. Which of those applications below would have the greatest internal operating pressure ratings?
The industry committee network is made up of three bodies. Which of the bodies below acts as a link between the AIT Board and the LACs?
"Either of two angles that added together produce an angle of 90°" is a description of which mathematical term?
Valves require several different styles of physical lock out device. Which of the styles below correctly identifies the device in the following picture?
What is the gain if nozzle backpressure changes from 1.35 psig up to 2.5 psig, and the relay output changes from 4 psig to 17 psig?
The volume of a sphere is calculated with which correct equation?
If a closed tank is pressurized to 17 psig and the pressure gauge at the bottom of the tank reads 34 psig, what head (in meters) of a liquid with a R.D. of 0.23 is contained in the tank
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
"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?
Magnetism has several terms that must be understood. Which of the terms below would best be defined as the number of magnetic lines of flux that pass through a certain point on a surface?
To move 100 C across two points. when the voltage is 15 V, how much energy is required?
(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 3 tubes together?
Find the volume in meters cubed of a cylindrical tank that has a radius of 2.4 m and a length of 1.2 m.
Calculate the gain when a change from 0.25 psig to 1.5 psig in nozzle backpressure and a change from 3 psig to 20 psig in the relay output occurs.
Calculate 4/7 + 2/5, and state answer as a proper or mixed fraction
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
With the proper formula "Work" is a measurable quantity. Which answer below represents the part of that equation that is measured in "joules"?
"An electrical circuit that allows a current to travel along an unintended path with no or a very low electrical impedance." is the best description of which of the terms below?
(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?
What is the pressure generated by a mass of 3 kg placed on a the top of a cylindrical piston with a 7 cm diameter filled with gas?
There are several varieties of manufactured resistors. Which of the answers below is constructed with a glass core?
(310105d) Efficiency is one of the benchmarks that is used for rating machines. Which of the measurement units below is used with efficiency itself?
Convert 75kPa to Kpa(a) Barometer is 97.8 kPaa
(310103d) There are several different designs of regulator. Which of the elements below are you affecting when you adjust spring compression?
What is the pressure generated by a mass of 2 kg placed on a the top of a cylindrical piston with a 6 cm diameter filled with gas?
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
(310105d) Hp is a common term seen to rate power. Which of the answers below reflects the conversion of 278 hp to watts?
There are several terms used when describing circuitry or equipment on hazardous locations. Which of the terms below would be best described as electrical/electronic circuitry that is incapable, under normal operating conditions, of causing ignition of a specified flammable gas-air, or vapor-air,mixture?
A _________ has the air connection usually under of the diaphragm.
There are several types of soldering irons that are available in industry. Which type of soldering iron below would be used for speedy repairs where electrical power is restricted or unavailable?
A 3 kg mass is placed on a 4 cm diameter diaphragm, what is the pressure on the air under the diaphragm?
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?
(310103d) There are several different designs of regulator. Which of the designs below would make use of a weight for a loading element?
(310102c) Resistors have several construction methods. Which of the resistors below would have the highest tolerance for temperature?
There are 5 separate classifications in the WHIMIS system. Which of those classifications is correctly represented by the following symbol?
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?
From the information given in the diagram below, what is the current flowing on branch R3?
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.
Reduce ³⁴⁰⁄₄₀ and state as a proper or mixed fraction.
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?
State the number 3521.785 x 10³ using decimal notation and round the answers to three significant digits.
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
There are several types of measuring elements used in industry. Which of the answers below is best represented by the picture below?
Matter that is composed of more than one type of atom is called?
If there was a need to control the process pressure upstream of the regulator, which one of the devices below would be used?
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 vacuum gauge indicates a pressure of 15" Hg. What will the pressure be , in kPaa, if the atmospheric pressure is 13.9 psia?
There are several different ways to apply force to an actuator. Which one of the methods below would use a piston for operation?
Which of the electrical terms below can be best described as one that "internally converts stored chemical energy into electrical potential energy."
There are two very common types of metric vernier calipers. Which of the answers below best represents the minimum accuracy of a metric Vernier caliper?
(310105i) Any solid has inherent properties associated with it. Which of the properties below would be measured as a result of a tensile test on it??
A battery has a rating of 80Ah, this means it can supply
Ozone, carbon monoxide, hydrogen chloride and phosgene are all gases that can be created by different types of welding. Of the answers below, choose the best one that they all have in common.
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 100 °C?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "that at the same temperature and pressure, equal volumes of all gases contain the same number of molecules."?
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?
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
There are a variety of circuit symbols used in electrical designs. Which of the terms is most commonly associated with the symbol below?
In the WHMIS system, "Oxidizing material" is represented by which hazard class? Choose from the following answers.
14.696 psia is equal to?
If a closed tank is pressurized to 105.345 kPa and the pressure gauge at the bottom of the tank reads 198.456 kPa, what head (in feet) of a liquid with a R.D. of 0.11 is contained in the tan
(310104b) There are many different valves to be used for different processes. Which of the valve types below would be considered self-cleaning?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "4" in the picture below?
For every gas law there is a corresponding equation. Which of the gas laws below is represented by the equation "P₁V₁n₂T₂=P₂V₂n₁T₁"?
A volume booster is not a positioner.
There are three main types of measuring elements used in industry. Which of the answers below best represents the letter "A"?
The prefix "Milli" can be expressed as?
By the early 1800's, there had been several gas laws discovered. Which of those laws below is best described as "the relationship between the volume and temperature in a fixed mass of gas."?
"The quantifiable change in position of an object, including how far the object travels and in what direction, before achieving it's final position." is the description of which mathematical term?
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?
What is usually referred to when loading an ammeter?
(310102m) There are numerous electrical terms relating to specific components. Which of the terms below can be best described as the the process of expending the accumulated energy in a capacitor?
(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(ad) with R1=70k ohms, R2= 136k ohms and R3= 360K ohms, with a current of 0.754 mA
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?
If a closed tank is pressurized to 111.345 kPa and the pressure gauge at the bottom of the tank reads 160.456 kPa, what head (in feet) of a liquid with a R.D. of 0.38 is contained in the tan
State the number 789342.61 using decimal notation and round the answers to three significant digits.
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type K tube type typically have?
Convert 0.125 to a fraction.
Convert the following quantities to the units asked for: 27000 seconds to hours.
What is the name of the tool used to cut internal threads after drilling a hole?
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?
Certain categories of tubing has specific applications in industry. Which of the categories below would be used in applications where actuator energy is carried to an FCE?
The perimeter of a rectangle is calculated with which correct equation?
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?
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?
Which of the resistors below is best described by the following statement, "A variable resistor making use of three contacts whose resistance varies with an adjustment of a sliding contact."?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
A 2000 kg train is traveling east with a speed of 25 km/h. Determine the mass of a truck travelling at 15 km/h would have to have to be travelling at the same momentum.
State this fraction as a mixed fraction: ⁵⁵⁄₈.