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!

(310101c) There are a wide variety of tubing fitting types with specific name describing them. Which of the fittings below would have two tube ends offset and one pipe connector?
State the number 13487000 using scientific notation and round the answers to three significant digits.
There are several properties to a circuit. Which of the terms below best defines the opposition to a change in current?
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, ensuring each source of energy to the work area has it's own isolation, would be which of the steps below?
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 decrease?
A vacuum gauge indicates a pressure of 15" Hg. What will the pressure be , in kPaa, if the atmospheric pressure is 13.9 psia?
A mass of 6 kg is placed on top of a spring and that spring compresses 7 cm. What is it's spring rate?
It is a good trade practice to transport gas cylinders secured and upright. From which act below did this practice come from?
Which of the terms below is best described by the statement, "Current flows from the positive terminal to the negative"?
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 industry, there are several types of protection used to reduce the risk of explosion. Which of the methods of protection below would explosion-proof equipment be primary used?
Alternating current is bi-directional.
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 0 R?
If it were necessary to control the process pressure upstream of the regulator, which device below would be required?
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?
Convert 0.875 to a fraction.
A _________ has the air connection usually above the diaphragm
(310105d) The displacement of an applied force is a measurable quantity. Which of the terms below would be use "J" as it's unit of measurement?
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?
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."?
(310104d) Valve positioners provide several advantages over standard valves. Which of the advantages below would best relate to the flexibility of operating modes?
Alloy steels are very common in industry. Which of the types of alloy steel would "Austenitic" piping be?
To move 75 C across two points. when the voltage is 10 V, how much energy is required?
"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?
"This piece of legislation came into effect in 1915. This act deals primarily with compensation, medical aid and rehabilitation of a worker due to a job-related injury." Which of the answers below is best described by this statement?
(310104a) There are numerous components to a valve. Which of the components below would best be referred to as a gland that seals the dynamic portion of the valve against leakage?
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
Lifting a load with rigging is an involved and potentially dangerous task. When working with slings, which of the angles below is the commonly used safe lifting angle?
"A characteristic where flow capacity increases linearly with valve travel. Flow is directly proportional to valve travel." is the best description of which of the terms below?
The equation to compute mechanical advantage is which one of the below?
The basic unit of matter is called?
If the total error is 1.5 and the dead band error is 0.3, what is the hysteresis value?
In the SI system, what is the fundamental hydrostatic pressure equation
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?
Within the umbrella of intrinsically safe loops, there are several sub-categories and classifications. Which of the terms below would best be describe a field device that has a minimum of 1.3 volts it can develop or contain?
"Control devices that use the fluid medium that they control to obtain their energy" is a description of what?
In a simple circuit, if E=8 V and R=3 ohms, what is the current of the circuit?
If there was a need to provide a regulated output pressure with no distrubances from varying inlet and downstream pressures, which of the devices below would be used?
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?
In the figure below, R1= 10 ohms, R2=6 ohms, and R3=4 ohms, with the battery producing 40 V, what is Amperes of the circuit?
Solve for x: (3)(5)+9=x
In the fraction A/B. is B the numerator?
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?
(310102c) Resistors are commonly rated in 3 distinct ways. Which of the answers below would best relate a "resistance" rating?
The supplier label:
If a closed tank is pressurized to 135.345 kPa and the pressure gauge at the bottom of the tank reads 172.456 kPa, what head (in feet) of a liquid with a R.D. of 0.14 is contained in the tan
The best description for "Angularity adjustment" in relation to calibrating instruments is which of the following?
"This workplace hazard consists of organisms or organic matters produced by these organisms that are harmful to human health." This statement best describes which of the hazards below?
The prefix "Micro" can be expressed as?
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?
To preform a "Span" adjustment the order of the step(s) is/are?
There are numerous types and styles of valves in industry. Which of the additions to a scotch yoke valve allows for proportional positioning?
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.
(310101c) Copper tube is the most used type of tubing in industry. What type of colour code would a Type DWV tube type typically have?
"This physical factor within the environment that harms the musculoskeletal system." This statement best describes which of the hazard groups below?
There are many different types of alloy steels, each with specific properties. Which of the elements below would have the effect of increasing erosion and wearing down resistance?
If, for every 15 C of charge, 45 J of energy is available, what is the voltage?
When selecting a hammer to use, what would "weight of head" help determine?
Convert 0.500 to a fraction.
The 3 key elements of the WHIMIS system are, worker education, labels and ________. Choose from the answers below to fill in the blank.
"Is the side next to the angle of significance." is a description of which right angle triangle mathematical term?
There are several different types of carbon steel in any piping system. Which of the types below would have more than a 0.6%% carbon content?
Movement of the actuator stem by air pressure applied to a flexible membrane is a characteristic of which actuator?
"An electric circuit in which the normal path of current has been interrupted." is the best description of which of the terms below?
In a baffle-nozzle-restrictor motion detector the:
convert 56.7 psi to kPa.
"Two angles that add to 180 degrees," is a description of which mathematical term?
All safety enclosures are tested in the factory to certify the maximum pressure released in an explosion that it can withstand. Which of the answers below would describe the testing required for a explosion-proof enclosure?
In the WHMIS system, "Dangerously reactive material" is represented by which hazard class? Choose from the following answers.
When servicing or troubleshooting a valve there are several steps that must be completed. In controlling hazardous energy, verifying a physical lock or securing method is placed on all isolating devices, would be which of the steps below?
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
A conductor is passed through a magnetic field and a voltage is induced, whose law is this?
(310101c) There are many specialized applications for copper tube. Which of the copper tube type would be used in a refrigeration system?
Many electrical properties are a measured quantity, needing a unit of measurement. Which of the units below would be the correct unit of measurement for inductance?
The prefix "giga" can be expressed as?
(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 column of water with a density of 43 lbs per cubic foot and a height of 65 inches, exerts what amount of pressure ?
There are several varieties of manufactured resistors. Which of the answers below is generally regarded as the most common resistor?
If it were necessary to operate an 50-300 kPa valve actuator, but you had a 20-80 kPa control signal, the relay used would be?
There are many different parts to a parallel circuit. Which of the answers below corresponds correctly with the number "6" in the picture below?
There are several terms that are related to electromagnetic cores. Which of the terms below would be correctly described as "a localized electric current induced in a conductor by a varying magnetic field."?
This valve is primarily used in slurry service and is not over 8 inch in general
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 kPa is equal to _____ psi
Determine x if 5:16=x:128.
Isolating process lines with a physical barrier is one of the steps for safe field servicing of a control valve. Which of the blank types below would best be described as having a blind and a spacer together in one assembly?
Some enclosures have removable coverings to allow maintenance work. Which of the enclosures below would have a round cover?
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?
Proper choices need to be made with the mounting of instruments. Which of the answers below would be a disadvantage of a instrument stand that has a cable mount?
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"
What is the main purpose of valve positioners?
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
If a tool increases from $43 to $76, what is the percentage increase?
"2+(9+7)=(2+9)+7" is an example of which mathematical law?
There are a number of steps to calibrating a two pen chart recorder. Which of the steps below would the pen pressure adjustment/verification be?
The trigonometric ratio of cosine is calculated with which mathematical equation?
The relationship between the 4 temperature scales is very important to understand. Which of the answers below correctly corresponds to 100 °C?
When taking measurements, there are several terms that are commonly used. Which of the terms below is best described as a refinement in a measurement?
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
What are the two main systems of negative feedback?