M&M 4 Final Exam Updated Questions And Correct Answers

M&M 4 FINAL EXAM UPDATED QUESTIONS AND
CORRECT ANSWERS
Question:
1. True or False: Steel studs can be used in load-bear-ing walls, non-load-bearing, floors and roofs.
Answer:
True

Question:
2. True or False: Steel studs used as a commercial back-up wall carry the building structural loads.
Answer:
False

Question:
3. True or False: A 20-gauge sheet steel is thicker than 22-gauage sheet steel.
Answer:
True

Question:
4. True or False: Steel studs are heavier than wood studs.
Answer:
False

Question:
5. Which material is a better thermal conductor (al-lows more heat flow).
Answer:
Steel

Question:
6. True or False: Tracks and studs are the same profile and only differ in their orientation in the wall.
Answer:
False

Question:
7. Which is NOT a standard metric (steel) stud size?
Answer:
89mm

Question:
8. What is applied to the surface of steel studs in the factory to prevent corrosion?
Answer:
Zinc

Question:
9. What is the general stud gauge thickness for non-loadbearing interior partitions?

,Answer:
25 Ga

Question:
10. Check all methods of dealing with slab deflection in a non-loadbearing steel stud partition.
Answer:
Nested top track + Deflection track

Question:
11. Within a solid, the mode of heat transfer is by
Answer:
Conduction

Question:
12. Within an air space (cavity), the mode of heat trans-fer is primarily by
Answer:
Convection and/or Radiation

Question:
13. True or False: Air is a good insulator, provided that it exists in large volumes.
Answer:
False

Question:
14. The R-value of a 2" thick material is 4.0. What is the R-value of the same material if its thickness
is 1"?
Answer:
2.0

Question:
15. True or False: Cold always travels from an area of low temperature to an area of high
temperature.
Answer:
False

Question:
16. What does the U-value measure?
Answer:
The transmittance value of a material of assembly.

Question:
17. What is the purpose of adding continuous insula-tion outside the stud cavity?
Answer:
Reduce thermal bridging

Question:
18. Which of the following insulation types has the high-est R-value per inch?

, Answer:
Polyisocyanurate

Question:
19. True or False: Sprayfoam insulation is an easy DIY (do it yourself) solution for homeowners to
improve the thermal value of their walls.
Answer:
False

Question:
20. True or False: A building assembly with a higher U-value is thermally more insulating than one
with a lower U-value.
Answer:
False

Question:
21. The correct order of materials for a perfect wall?
Answer:
Brick veneer, airspace, insula-tion, air/vapour barrier, exte-rior sheathing, studs, and in-terior
gypsum.

Question:
22. Part 11 of the Building Code applies to:
Answer:
Renovation of existing build-ings.

Question:
23. What type of insulation is used in a low-slope roof assembly?
Answer:
Extruded Polystyrene (XPS).

Question:
24. Which of the following can be described as an air barrier (not a vapour barrier).
Answer:
Permeable and waterproof-ing membrane.

Question:
25. Precast panels require what type of connections?
Answer:
One structural + one lateral, either at the top or the bottom

Question:
26. Leakage and diffusion of gas through a building envelope are two different mechanisms because:
Answer:
Leakage occurs through holes, cracks, and openings in the envelope, while diffu-sion occurs through
the body of the envelope component or its material(s).