Uapccd Revised Bldg. Tech (Part 1)

BLDG. MATERIALS & CONSTRUCTION

Situation: As Project Manager for a 3-Storey Residence, you were told by the owner that he would like a finish on his fence to still show the CHB. What would you tell your foreman/mason to tidy up? •

a. b. c. d.

Soleras Kostilyahes Palitada Kostura

Situation: Design…

In

a

Condominium

High

Rise

• Most windows installed are fixed and minimal openings are provided for safety purposes, What does this sacrifice?

a. Comfort, in line with proper ventilation b. View c. Cost d. None of the above

• What special feature does the main entry door of the condominium have as an additional security feature? a. No duplicates for the key b. Only one company is allowed to do the duplication c. Many duplicates of the key d. All of the above

• A kind of hinge that is used for a door between the main kitchen and the dining area. a. b. c. d.

Pivot Hinge Drop Leaf Hinge Double Acting Gravity Hinge Continuous Hinge

• What type of window gives you protection from rain in the absence of canopy? a. b. c. d.

Casement Sliding Awning Fixed

• What type of window admits 95% of air? a. b. c. d.

Casement Sliding Awning Louvers with 150mm width blades

• To block excessive sunlight, what “new material” is used for windows? a. b. c. d.

Louvers Painted Tint Solar Tint Blinds

• Which window is the easiest to clean? a. b. c. d.

Awning Sliding Louvers Casement

Situation: Match the following

Studs a. b. c. d.

Wall Framing Floor Framing Slip Form Ceiling Framing

Furring a. b. c. d.

Wall Framing Floor Framing Slip Form Ceiling Framing

Joists a. b. c. d.

Wall Framing Floor Framing Slip Form Ceiling Framing

Silo a. b. c. d.

Wall Framing Floor Framing Slip Form Ceiling Framing

• What type of paint is used for Concrete? a. b. c. d.

Alkalyde Enamel Lacquer Acrylic

• What Paint Finish is NOT used for Ceiling? a. b. c. d.

Textured Finish Roller Finish Ducco Finish None of the above

•

What is the term used for the initial coat on Structural Steel from the factory prior to its shipment? a. b. c. d.

Inhibiting Primer Top Coat Shop Coat Red Paint

• A number of steel bars had been left in the rain and had rusted. What would you do with them?

a. Brush them with steel brush and use them since a little rust is good for adhesion to concrete b. Pour oil on them to remove the rust c. Throw them all d. Buy a new one

•

It is used to remove rust in rebars a. Oil b. Steel Brush c. Heat d. Anti-rust paint

• Alligatoring – The formation of cracks on the surface of paint layers.

• Peeling – A very common paint problem caused either by moisture or poor adhesion. It is characterized by the paint peeling and separating from an earlier paint layer (intercoat peeling) or from the substrate leaving some paint behind. Sometimes portions of earlier paint layers are visible under the curling, peeling paint layer.

Peelin g

• Blistering and Bubbling – Blistering occurs when the upper layer of paint loses adhesion and separates from older layers. Typically, this happens after the paint has dried completely, and there are no good guidelines for determining if or when it will occur. The problem can crop up within a day, or not until a year later.

Blisterin g

The most common cause of blistering is applying paint to a damp or wet surface. Allow the substrate to dry completely before priming and painting. If there is a continual moisture problem (in a leaky basement, for example), it must be corrected before painting.

It’s also important to let the paint dry before exposing it to wet conditions. The weather channel is your friend! Avoid painting within four hours of a rainstorm; high humidity often causes blisters (sometimes water-filled) to form. If the surface dries out quickly, sometimes these will disappear. If a bubble remains after the surface dries, however, you’ll need to scrape it off and repaint.

In other cases, blistering is caused by applying paint to a dirty or incompatibly finished surface. As he paint dries, it shrinks slightly, pulling up poorly adhered sections of old paint. It’s important to thoroughly clean walls (both interior and exterior) before painting. Never apply oil-based paint over a latex base. It is possible to use latex paint over oil based primers and paints. But it’s better to stick with one type of formula. If your siding has been treated with linseed oil in the past, prime and paint with oil-based products.

Bubbles form as the result of a chemical reaction. This problem is far more common when paint is applied to a hot surface. Essentially, the top layer of paint dries, forming a barrier that prevents the solvents from escaping easily. At the same time, the hot surface causes the solvents to vaporize. These expanding gases put enough pressure on the paint to force it away from the substrate, creating a bubble. This occurs early on, during the initial drying phase.

• Wrinkling - occurs under three conditions - applying a coat of paint when the outside temperature is too low, when paint is applied too heavily on a hot surface or in the hot sun, or when not enough time. Has been allowed for the undercoats to dry properly. In either condition, the only solution to the problem is to sand the wrinkled finish, re-prime the area, and repaint. Wrinkling can be avoided by brushing all coats out thoroughly and painting in temperatures above 55 degrees and below 90 degrees Fahrenheit

Wrinkling

• Efflorescence - a paint defect that is identifiable by crusty white salt deposits that bubble through the paint film from a masonry structure. Salts in the brick of concrete become dissolved with water and then leach to the surface as the water evaporates.

• Chalking - The formation of chalk (fine, white powder) on the surface of a painted surface is primarily due to weathering, which can give the appearance of color fading. While some degree of chalking is normal and can be a desirable way for paint to wear, excessive paint film erosion may result in unsightly heavy calk. Excessive chalking is caused by the disintegration of the paint film during weathering. Some common causes of heavy chalking include application to an unsealed surface, overspreading the paint, or poor quality paint.

Chalking

• A cabinet in a kitchen was fabricated using marine plywood. What paint should you use inside the cabinet? a. Polyurethane b. Epoxy Enamel c. High Gloss Varnish d. Aqua Epoxy

•

How is concrete neutralizer mixed? a. Dilute at 1:1 b. Dilute at 1:16 c. Dilute 1:10 d. Dilute 1:8

• What material is used to prepare masonry surfaces for painting? a. Polyurethane b. Concrete Neutralizer c. Gypsum Putty d. Plaster

•

What thinner is used for Alkyd Paint? a. Water b. Paint Thinner c. Lacquer Thinner d. Enamel

• Which is the best application for Polyurethane? a. Interior Cornice b. Exterior Furniture c. Interior Office Furniture d. All of the above

• An owner had his house painted. He asked the painter to use the excess paint for the cabinets. However, when the painter applied the paint, it doesn’t dry properly and it coagulates. What happened to the paint? What causes it to coagulate?

• When a surface is uneven and cannot be totally flattened, what is the best paint to hide the uneven surface? a. Semi-gloss b. Eggshell c. Flat Paint d. Glossy

• Why should rags NOT be left beside can of paints at a jobsite especially during night time when it is most likely to be unattended? a. It will increase humidity b. It will absorb moisture and affect the paint c. It might ignite a fire d. Rags will be stolen when unattended

• To avoid chalking of a paint, what should be done? a. Buy a new roller b. New paint c. Do not paint when humid d. Apply first coating instead

• Why does acrylic latex considered the most flexible paint? a. Can be mixed with any kind of thinner b. Used in wood, concrete and steel c. Interior and exterior, odorless d. Water-based

• Acrylic Latex Paints tend to be the most durable and flexible. Most often used for exterior painting, they are suitable for a number of different applications, including house painting, decorative and faux painting and even in the Fine Arts. Acrylic is the most expensive binder used in latex paints because it is particularly flexible and durable. This makes it especially suitable for painting exterior surfaces such as wood, vinyl and metal.

• Why is enamel not appropriate for metals? a. Takes along time for drying b. It will not bond c. Odorless d. Rust-proof

• What paint is NOT commonly used for Spray Painting? a. Latex b. QDE c. Acrylic d. Lacquer

• What paint is NOT commonly used for Spray Painting? a. Varnish b. Enamel c. Acrylic d. Lacquer

• What happens applied to metals?

when

enamel

is

a. Paint will not adhere to metal b. Long time for paint to adhere with metal c. It will not dry quickly d. It will easily be corroded

•

Area to avoid flat paint a. Rough surface b. Crowded and busy kitchen c. Wood d. Ceiling

• Best varnish for high quality Narra door a. Varnish b. Epoxy paint c. Lacquer d. Latex

• What paint will you use for a Doctor’s Office? a. Enamel b. Flat c. Epoxy d. Latex

• Caulking – To make watertight or airtight by filling or sealing.

• Paint Estimating: How many square meters can be painted by two persons in a regular 1 day work if they work continuously? How much paint in gallons will they use?

• What Area waterproofing?

DOES

a. Balcony over Lanai b. Ground Floor Toilet c. 2nd Floor Toilet d. Roof Deck

NOT

require

• It is best for Waterproofing Balconies, Roof Decks & Basement a. 1/8” thk Membrance b. 3/16” thk Membrance c. ¼” thk Membrance d. ½” thk Membrance

• In Waterproofing a Balcony, up to where is the extent of the waterproofing installation? a. Along the whole area of the floor of the balcony b. Along the perimeter of the balcony c. Along the whole floor area of the balcony up to the adjacent wall connected d. Along the whole perimeter wall and whole floor of the balcony

• It is a material used to waterproof G.I. Gutters a. Rivets b. Vulcaseal c. Contact Cement d. Epoxy

• Waterproofing can be rendered ineffective or damaged by what factor? a. Acids and alkali transmitted by direct contact to waterproofing b. Moisture c. Rust d. Humidity

• What area is NOT recommended to use Capillary Membrane Waterproofing? a. Cistern b. 2nd Floor Balcony c. Escalator and Elevator Pit d. Storage Tank

• Disadvantages of cementitious water proofing – The chief disadvantage is that cementitious products just doesn’t stretch to any degree worth mentioning. They will stand up fine to a head of water, but will tolerate almost no crack or joint movement.

•

Common waterproofing for roof deck a. Elastomeric b. Sahara c. 3.0kg Polybond d. 4.5mm Polybond

• Where should the waterproofing be installed? a. In between the slab and topping b. Sahara c. 3.0kg Polybond d. 4.5mm Polybond

• Which has a minimum of 5 years warranty? a. Roof deck Waterproofing b. T&B Waterproofing c. Floor Laminate d. GlassWindow

• Water proofing on roof deck fails and there is seepage. What is NOT the reason it failed? a. Corners were not properly sealed b. It was not properly protected by Flashing c. Melts in the Rain d. None of the above

• A treatment of Concrete or Mortar to retard the passage or absorption of water or water vapor, either by applying a suitable coating to exposed surfaces or by using a suitable admixture. a. Water proofing b. Damp proofing c. Rust proofing d. All of the above

• A treatment of Concrete or Mortar to retard the passage or absorption of water or water vapor, either by applying a suitable coating to exposed surfaces or by using a suitable admixture a. Water proofing b. Damp proofing c. Rust proofing d. All of the above

• What is the activity that the surveyor performs after he verifies the points form the lot description and places the monuments in the proper locations?

a. Relocation b. Monumenting c. Verification d. Surveying

•

What is “relocation of points”? a. Verifying and location of monuments b. Alignment of grid c. Setting up stakes and batter boards d. All of the above

• What is to be done before Excavation on site? a. Verify correct lot and grid lines b. Alignment of grid c. Setting up stakes and batter boards d. All of the above

• What will happen if Excavation is not correctly followed? a. Increase in # of bars b. Increase in volume of concrete c. No effect d. All of the above

• If excavation is beyond 3 meters with an adjacent structure, what should you use?

a. Bored Pile b. Sheet Pile c. Wooden Pile d. Plyboard

• A Hydrologic Soil Test should be made a. Before Excavation b. After Excavation c. During Excavation d. Never Mind

• When excavating, what will you do if you over excavated the soil? a. Fill the excavation with gravel b. Place Mass Concrete c. Put back soil to desired elevation d. None of the above

• Where should you start the excavation for the basement if the site is sloping to the south with an adjacent building on it? Note: In answering these type of questions, read the problem carefully and take into consideration the situations stated. Major consideration will be the movement of workers and materials. Excavation must not impede the mobility of workers.

• When preparing Electrical Plans for submission, the plans must be duly signed by an _________. a. Master Electrician b. Electrical Engineer c. Electronics Engineer d. Electrician