eBridge - Building Operator Pretest

There are 27 questions in this fun quiz, each is drawn from separate areas of instruction in the Building Operator Development Program. All these questions are typical of those you will find on the Provincial Licensing Examination. This quiz challenges you on both your knowledge and your confidence level around your answer. If you answer a question correctly, this automated quiz will assign you one point for that correct answer. And, in the second part you can earn extra points for your level of confidence around your answer to a maximum of 3 points per question.

At the end of the quiz, your scores will be converted to a recommendation whether you could go directly to the online self-assessment tool (There is a cost associated with this next step.), or whether you should take a refresher course, or the complete program.

Take the quiz now. And good luck!

1. A very common packaged boiler gas burner is the:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. non-articulated burner
2. post mix atmospheric burner
3. mechanical atomizing burner
4. cluster nozzle burner
5. ring burner

2. A furnace explosion may be caused by:
1. insufficient purging before lighting off
2. failure of the main fuel valve to close when main burner flame is lost
3. accumulating of scale on the boiler surfaces
4. admission of fuel to the main burner before the pilot is established
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. 1,2,3,4
2. 1,2,4
3. 2,3,4
4. 1,3,4
5. 3,4

3. Before starting up any boiler it is necessary that:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. it be properly warmed up
2. it be properly purged
3. it have a valid inspections certificate
4. the water supply system be in service
5. the waterside is boiled out

4. A form of lubrication which required continual motion of a shaft or surface is:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. Boundary lubrication
2. alemite fitting lubrication
3. forced lubrication
4. zerk fitting lubrication
5. fluid film lubrication

5. In order to protect driven equipment from damage:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. ensure the discharge valve is closed first
2. the driver must be isolated first
3. the belts must be removed first
4. a lock must be placed on the drain valve first
5. the “energy source” must be isolated after the driver

6. In Canada, the authority through which the ASME and CSA codes are enforced is:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. provincial acts and legislation
2. the governing rules of the professional engineers association
3. the governing rules of the Institute of Power Engineers
4. there is ultimately no authority, people follow the codes on a voluntary basis because they make sense
5. the federal government “Boiler and Pressure Vessels Act”

7. Absolute pressure is the sum of the:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. gauge and atmospheric pressure
2. standard and ambient pressure
3. minimum and maximum pressure
4. positive and negative pressure
5. low and high pressure

8. A slight leakage is desired between the pump shaft and packing of the majority of pumps in order to prevent:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. the ingress of atmospheric air
2. the pump capacity and efficiency
3. wearing of the wear rings
4. insufficient lubrication
5. the pump from vapor locking

9. An air compressor auxiliary which will decrease the power requirement is the:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. receiver
2. diffuser
3. inter-cooler
4. variable compression ration head
5. aftercooler

10. A gate valve:
1. has less restriction in a line than a globe valve
2. should be operated either fully open or fully closed
3. is used to throttle flow
4. is used for different applications than a globe valve
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. 1,2,3,4
2. 1,3,4
3. 1,2,4
4. 2,3,4
5. 2,4

11. Insulating pipes which carry substances lower that the ambient air temperature, will prevent ________ on the pipe and consequent dripping and corrosion:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. discoloration
2. evaporation
3. water hammering expansion
4. expansion
5. sweating

12. How many blow-off valves does a low-pressure boiler require:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. none
2. one
3. two
4. three
5. four

13. A room thermostat should be mounted on an inside wall about:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. 0.5 m above the floor
2. 0.75 m above the floor
3. 1.0 m above the floor
4. 1.25 m above the floor
5. 1.5 m above the floor

14. Combustible element of fuel are:
1. CO₂
2. H
3. C
4. H₂O
5. S
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. 1,3,5
2. 2,3,5
3. 3,4,5
4. 1,2,5
5. 1,4

15. A try lever safety valve test will:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. ensure the popping pressure is correct
2. indicate that valve capacity is adequate
3. ensure the closing pressure is correct
4. take approximately 2 seconds
5. ensure the valve is free to operate

16. A water filter should be backwashed in order to:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. regenerate the filter
2. dissolve the suspended matter
3. flush the trapped impurities to waste
4. oxidize the water
5. transfer liquid in the opposite direction

17. Advantages of the forced circulation hot water heating systems are:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. reduction in pipe size and greater heat storage capacity
2. high pressure piping and controls
3. high vacuum in the return lines and pumps
4. higher make-up and better chemical control
5. low water make up and better temperature control

18. The level in the condensate receiver is automatically controlled by a:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. float switch
2. pressure reducing valve
3. gate valve
4. drain valve
5. sight glass

19. The main disadvantage of electric heating is the:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. high maintenance cost
2. poor local temperature control
3. expensive installation
4. high operating cost
5. all of the above

20. Air ventilation is based on the larger of these two requirements:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. solar heat rate and CFM rate per person
2. conduction rate per person and solar heat rate
3. CFM rate and conduction rate per person
4. “R” value of insulating material used

21. The following characteristics; nonflammable, odorless, nontoxic, no corrosive effects on metal if water was present, and a boiling point of -40.6 ºC are the characteristics of:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. ammonia
2. freon
3. sulfur dioxide
4. butane
5. propane

22. Refrigerant evaporators:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. always have the refrigerant on the shell side
2. are located between the expansion valve and the receiver
3. may have brine pumped past the coils in an indirect system
4. may be of the walk-in type
5. are usually oil cooled

23. A system of regularly scheduled inspections and lubrications along with adjustment, minor parts replacement, and minor repairs necessary to keep the refrigerating plant and equipment in good operating condition is defined as:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. preventative maintenance
2. safety controls
3. routing operation
4. regular maintenance
5. bi-annual checks

24. Pressure limiting devices shall be provided on all systems containing more than:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. 9 kg of refrigerant
2. 7 kg of refrigerant
3. 10 kg of refrigerant
4. 5 kg of refrigerant
5. 3 kg of refrigerant

25. The primary code book for refrigeration systems is the:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. CSA B51
2. CSA B52
3. ASME Section IV
4. ASME Section VII
5. ANSI

26. Steam grid humidifiers used in air conditioning systems achieve humidification by:
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. the installation of a steam coil in the entering air stream
2. the installation of a water coil in the entering air stream
3. injecting steam in the supply air stream
4. injecting steam into the spray water of an air washer
5. injecting steam directly into the rooms to be humidified

27. When looking at building function to select a system which of the following factors are being considered:
1. the physical size of the building
2. climatic conditions
3. the amount of zoning required
4. funds available for the system
5. occupancy periods
6. the need to operate certain area off hours
- How confident are you?
- I guessed my answer.
- I think my answer is correct, but I am not sure.
- I am confident my answer is correct.
1. 1,2,6
2. 3,4,5
3. 1,3,4,5,6
4. 2,4,5
5. 1,3,4,6

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?

How confident are you?