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Examen

OBT 3 Final Exam Questions Fully Solved.

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1 You must never use a chisel with a ______ head. - Answer mushroomed 3. A ____ wrench is better suited to loosening tight nuts. - Answer box 4. Name three types of snips: - Answer Straight snips combinations snips Compound snips Name three types of pliers: - Answer needle nose side cutters channel locks 5. A masonry drill bit is suited for drilling into concrete due to its _____ tip. - Answer carbide 6.____ hammers are best suited for striking chisels. - Answer ballpean 8. _______ should be used when making sharp turn cuts in sheet metal. - Answer compound Name four types of wrenches - Answer open end wrench box wrench combinations wrench adjustable wrench ______ and ______ determine a screw size. - Answer lengths and diameters 2. A ____________ is used to anchor into a hollow wall. - Answer toggle bolt Sheet metal screws are self tapping. TRUE FALSE - Answer true

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OBT 3 Final Exam Questions Fully
Solved.
1 You must never use a chisel with a ______ head. - Answer mushroomed



3. A ____ wrench is better suited to loosening tight nuts. - Answer box



4. Name three types of snips: - Answer Straight snips

combinations snips

Compound snips



Name three types of pliers: - Answer needle nose

side cutters

channel locks



5. A masonry drill bit is suited for drilling into concrete due to its _____ tip. - Answer carbide



6.____ hammers are best suited for striking chisels. - Answer ballpean



8. _______ should be used when making sharp turn cuts in sheet

metal. - Answer compound



Name four types of wrenches - Answer open end wrench

box wrench

combinations wrench

adjustable wrench



______ and ______ determine a screw size. - Answer lengths and diameters



2. A ____________ is used to anchor into a hollow wall. - Answer toggle bolt



Sheet metal screws are self tapping.

TRUE FALSE - Answer true



5. Name three types of screw heads: - Answer Robertson

,Philips

slotted



6. A round headed bolt is called a - Answer Carriage Bolts



8. A _______ hole is required to start most screw types. - Answer pilot



7. Name the two types of thread forms: - Answer coarse and fine



A sheet metal joint can be further sealed with the use of ... - Answer high temp. duct tape



10. Washers help prevent a nut from - Answer loosening



A _____ cleat and an "____ " cleat are used to join sheet metal connections. - Answer 4



Vacuum is measured in:

a) Inches of water column (wc)

b) Inches of mercury (inHg)

c) Psi.

d) Kpg. - Answer B



I f a container is 65% full what is the remaining percentage to becoming

completely full? - Answer ...



9. A 200 gallon fuel oil tank converts to____ liters. - Answer ...



The structure of most sets of laws are separated into three levels based on how

they are created, who creates them, and what they cover.

Those three levels are: - Answer acts, regulations, code's



AnActis:

a) debated and passed in a legislature or parliament.

b) proclaimed by the ruling government.

c) created by committees representing various interests.

d) created by product manufacturers or industry associations. - Answer A

, The most specific legal requirements for OBTs are found in the:

a) Act

b) Regulations

c) Codes and Standards

d) Certified manufacturer's installation instructions - Answer D



The Act that applies to the fuel oil industry is called the

a) Energy Act

b) Technical Standards and Safety Act

c) Fuel Oil Act

d) Hydrocarbon Fuel and Storage Act - Answer B



Duties and responsibilities specific to fuel oil appliance owners, contractors, and

OBT's are found in:

a) Technical Standards and Safety Act

b) Fuel Oil Regulation 213101

c) Fuel Industry Certificates Regulation 215101

d) Fuel Oil Code 8139-00 - Answer B



Which of the following testing organizations are designated to test and label

appliances for legal use in Ontario (circle each correct answer):

a) Consumer Protection Association (CPA)

b) Canadian Standards Association (CSA)

c) Underwriters Laboratories of Canada (ULC)

d) Underwriters Laboratories (UL)

e) Warnock-Hersey Professional Services Inc. (WH)

f) Canadian Gas Association (CGA)

g) American Gas Association (AGA)

h) Omni Testing Laboratories (OTL)

i) Underwriters Laboratories Inc. (ULI)

j) Intertech Ltd. (ETL) - Answer B, C, E, F, I, H



An OBT-3 certificate holder must always be under supervision when conducting

work within the OBT-3 scope of certificate.

Información del documento

Subido en
5 de julio de 2026
Número de páginas
21
Escrito en
2025/2026
Tipo
Examen
Contiene
Preguntas y respuestas
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