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BM3

Total questions: 51

Worksheet time: 26mins

Name
Class
Date
1.

Which is not a commercial length of a steel reinforcing bar?

a)

6.0 m

b)

7.5 m

c)

9.0 m

d)

10.0 m

2.

Color code for PS Grade 275 Deformed bar

a)

Green

b)

Red

c)

Yellow

d)

Any color

3.

What is the color code of a Grade 33 Deformed bar

a)

Yellow

b)

Red

c)

Green

d)

White

4.

What is the equivalent diameter in millimeter of a number 5 (imperial bar size) deformed bar?

a)

16mm

b)

20mm

c)

10mm

d)

6mm

5.

What is the weight of a 16 mm diameter deformed bar, 3.50 M length?

a)

7.30 kg

b)

5.52 kg

c)

3.50 kg

d)

7.77 kg

6.

What is the term used for the initial coat on structural steel from the factory prior to its shipment?

a)

Inhibiting primer

b)

Top coat

c)

Shop coat

d)

Red paint

7.

Which of the ff is not a function if an admixture?

a)

Impart color

b)

Retard setting

c)

Fireproofing

d)

Improve wear resistance

8.

The material used to speed up the initial set of concrete is:

a)

Admixture

b)

Retarder

c)

Hydrite

d)

Sahara

9.

This material is used to slow down the hydration of cement especially during extreme hot weather:

a)

Admixture

b)

Retarder

c)

Accelerators

d)

Concrete hardener

10.

The categories of admixture are concrete, mortar and ________

a)

Surface application finishes

b)

Integral application finishes

c)

All of the above

d)

None of the above

11.

What is the correct term used for plasticizing agent?

a)

Water-proofing agents

b)

Water-reducing agents

c)

Water-integrating agents

d)

Water-borne agents

12.

An example of substances added to cement, mortars, concrete for improving or imparting particular properties are called:

a)

Celite

b)

Retarders

c)

Both a and b

d)

None of the above

13.

What brand name is not hardener?

a)

FLORHAND

b)

ARTROC

c)

METALICRON

d)

CELITE

14.

What is the minimum thickness of plywood forms used for columns or beams?

a)

6 mm

b)

½ inch

c)

¾ inch

d)

16 mm

15.

Forms for concrete require a coating to prevent concrete from adhering to the wood such as:

a)

crude oil

b)

Laquer paint

c)

Latex paint

d)

Weatherproofing paint

16.

Steel forms usually used for concrete joist construction is:

a)

pan

b)

Steel decking

c)

Corrugated steel

d)

Plain G.I. sheet

17.

This is the mixture of sand and cement deposited under high pneumatic pressure with a machine and is used for encasing structural steel and is ideal for swimming pool construction:

a)

Gunite

b)

Porete

c)

Aerocrete

d)

Perlite

18.

One type of processed concrete is:

a)

Cellucrete

b)

Aerocrete

c)

Guncrete

d)

Perrocrete

19.

This is processed concrete added with lightweight aggregate:

a)

Haydite

b)

Porete

c)

Gunite

d)

Aerocrete

20.

A built-up construction or combination of building materials as clay, concrete, or rstone set in mortar or plain concrete is known as:

a)

Masonry

b)

Wall

c)

Riprap

d)

Fence

21.

A hallow masonry unit with two or three cells or cores made from portland cement, water, and various types of aggregates:

a)

Concrete hollow block

b)

Structural brick

c)

Structural clay

d)

Brick

22.

Purpose of CHB cells

a)

To make it lightweight

b)

To make it stronger

c)

To make it cheaper

d)

To allow heat insulation

23.

A two-core block made from from fiber and cement and is lightweight is called:

a)

Jackbilt Block

b)

Durisol Block

c)

CHB

d)

Ramrod Block

24.

A generic term that refers to any of a number of cementitious substances that are applied to a surface In paste form after which it thardens into a solid material:

a)

Gypsum

b)

Concrete

c)

Plaster

d)

Mortar

25.

This is a proportioned mixture of cement, fine aggregate and water:

a)

Cement Mortar

b)

Concrete

c)

Lean Concrete

d)

CHB

26.

This is a mortar of cementitious material (lime, gypsum, or cement), sand and water which is applied in coats (layers) to masonry surfaces, lath or various types of plaster board to give a hand finish surface to interior or exterior walls and ceilings:

a)

Plasterette

b)

Plaster

c)

Cement Mortar

d)

Scratchcoat

27.

These types of brick have smooth outer surface with a dull satin or high gloss finish, are load bearing, fire resisting, and impervious and are usually formed with vertical hollow cores through the body with scouring on the back:

a)

Glazed Brick

b)

Structural Brick

c)

Common Brick

d)

Fire Brick

28.

A kind of brick used for high temperature

a)

Fly-ash brick

b)

Thermal brick

c)

Firebrick

d)

Cinder Block

29.

Standard size of a common brick

a)

3 3/4 x 2 1/2 x 8”

b)

3 1/4 x 2 1/2 x 8”

c)

3 x 2 1/2 x 8”

d)

3 1/8 x 2 1/2 x 8”

30.

Together with wood and clay, also one of the basic building materials of man:

a)

Stone

b)

Soil

c)

Brick

d)

Cement

31.

Which among the following is not a classification of stone?

a)

Igneous Rock

b)

Obsidian Rock

c)

Metamorphic Rock

d)

Sedimentary Rock

32.

Igneous rock is formed by the crystallization of:

a)

Shale

b)

Molten magma

c)

Sediments

d)

Volcanic ash

33.

A stone that is cut into a specific size, 2 feet or more in length and squared to dimension and to a specific thickness is:

a)

Rubble stone

b)

Dimension stone

c)

Stone veneer

d)

Brick

34.

Stone delivered from the quarries in rough and irregular shape that has at least one good face for exposure in wall is called:

a)

Dimension stone

b)

Rubble stone

c)

Stone veneer

d)

Ashlar

35.

This is a type of metamorphic rock, characterized by its vein structure, which is actually a recrystallized limestone used for facades, floors and walls:

a)

Marble

b)

Travertine

c)

Argilite

d)

Sandstone

36.

It is also known as gypsum partition blocks, are usually made of gypsum, vegetable fibers as binders and reinforcement, It is used for lightweight, fire-resistance interior partitions and for furring and fireproofing columns:

a)

Plaster Block

b)

Clay Block

c)

Shale Block

d)

Mortar Block

37.

Steel bars used for reinforcement of concrete are:

a)

Structural steel bars

b)

Billet steel bars

c)

Zee bars

d)

Tee bars

38.

What is the standard weight of a 25 mm diameter hot-rolled weldable deformed or plain steel bar per meter length?

a)

343 kilos

b)

3.853 kilos

c)

4.833 kilos

d)

2.466 kilos

39.

What is the standard weight of a 16 mm diameter hot-rolled weldable deformed or plain steel bar per meter length?

a)

1.578 kilos

b)

0.888 kilos

c)

1.872 kilos

d)

2.466 kilos

40.

Brand name for lath is:

a)

Z-rib

b)

Steelcrete

c)

Hyrib

d)

Porete

41.

These are narrow thin strips of wood or metal used as a building materials supporting structures for plaster, shingles or tiles:

a)

Expanded metal laths

b)

Gypsum laths

c)

Metal straps

d)

Gypsum laths and expanded metal laths

42.

What metal is made with chromium or a combination of nickel and chromium or a combination of nickel and chromium used in buildings for exterior wall panels, frames for doors, expansion joints, flashing, copings, fascia and gravel stops?

a)

Aluminum

b)

Steel

c)

Stainless Steels

d)

Chromium

43.

What is a steel element such as wire, cable, bar, rod, or strand or a bundle of such elements, used to impart prestress to concrete?

a)

Tenon cable

b)

Pre-stressing cables

c)

Tendons

d)

Reinforcements

44.

A commercially pure iron of fibrous nature, valued for its corrosion resistance and ductility is

a)

Wrought iron

b)

Cast iron

c)

Black iron

d)

Pig iron

45.

An iron alloy usually including carbon and silicon which has high compressive strength but low tensile strength is

a)

Wrought iron

b)

Cast iron

c)

Black iron

d)

Pig iron

46.

Made with chromium or a combination of nickel and chromium used in buildings for exterior wall panels, frames for doors, expansion joints, flashings, copings, fascia and gravel stops.

a)

Alloy steels

b)

Stainless steel

c)

Nickel steel

d)

Manganese steel

47.

A ferrous metal that offers great resistance to abrassion and finds important use in the cutting edges of heavy digging tools is a

a)

Alloy steels

b)

Weathering steel

c)

Nickel steel

d)

Manganese steel

48.

The metal that has the highest electrical and thermal conductivity and is ductile, malleable and non- magnetic is:

a)

Tin

b)

Lead

c)

Copper

d)

Aluminum

49.

Standard gauge of tie wires?

a)

Ga 16

b)

Ga 18

c)

Ga 20

d)

Ga 22

50.

One kilo of tie wire is equivalent to how many meters?

a)

45

b)

53

c)

35

d)

48

51.

A composition of two or more metals fused together usually to obtain a desired property

a)

Annealing

b)

Alloy

c)

Built-up

d)

Welded