ARCC ES

What is defined as an essentially vertical truss system of the concentric or eccentric type which is provided to resist lateral forces?

Braced Frame

What term refers to an element at the edge of an opening or at perimeters of shear walls or diaphragm?

Boundary Element

For structural steel, what is the allowable stress for tension in terms of gross area?

0.60 Fy

What is the minimum number of stories recommended to be provided with at least 3 approved recording accelerographs?

14

For concrete (other than high-early strength), for a minimum of how many days must it be maintained above 10 degree C and in a moist condition after placement?

7 days

What structural system is a combination of a Special or Intermediate Moment Resisting Space Frame and Shear Walls or Braced Frame?

Dual System

What is the minimum area in square meters a member supports for which the design live load may be reduced?

14 sq. m

The level at which the earthquake motions are considered to be imparted to the structure is known as the:

Base

What structural system relies on shear walls or braced frames to provide resistance to lateral load and is without a complete vertical load carrying space frame?

Bearing Wall System

What term describes the displacement of one level relative to the level above or below?

Story Drift

The total designed lateral force or shear at the base of a structure is called the:

Base Shear V

What structural terminology refers to a horizontal truss system that serves the same function as a diaphragm?

Horizontal Bracing System

What is the maximum deflection of a brittle finished wall subjected to a load of 250 Pascal applied perpendicular to said wall?

1/240 of wall span

What is the minimum height of any wall requiring structural design to resist loads onto which they are subjected?

1.50 m

The term for a member or an element provided to transfer lateral forces from a portion of a structure to vertical elements of the lateral force resisting system is:

Collector

What type of concrete is described as 'Concrete that does not conform to the definition of reinforced concrete'?

Plain Concrete

What is the ratio of normal stress to corresponding strain for tensile or compressive stresses below the proportional limit of a material?

Modulus of Elasticity

What is the ratio of transverse strain to the corresponding longitudinal strain in a material under tension or compression?

Poisson's Ratio

In prestressed concrete, what is the temporary force exerted by the device that introduces tension into prestressing tendons?

Jacking Force

What friction results from bends or curves in the specified prestressing tendon profile?

Curvature friction

What term is used for an upright compression member with a ratio of unsupported height to average least lateral dimension of less than three?

Pedestal

What is the length of embedded reinforcement provided beyond a critical section?

Embedment Length

What is the minimum concrete cover for a Prestressed concrete beam for primary reinforcement?

40 mm

What is the most common ASTM designation for Structural Steel?

ASTM A36

The secondary effect on shears and moments of frame members induced by the vertical loads acting on the laterally displaced building frame is called the:

P-delta effect

What structural terminology refers to a type of concrete floor system which has 'no beam'?

Flat slab

What is the failure in a base when a heavily loaded column strikes a hole through it?

Punching Shear

The deformation of a structural member as a result of loads acting on it is called:

Deflection

What is the greatest stress which a material is capable of developing without permanent deformation remaining upon the complete release of stress?

Allowable Stress

The sum of forces in the orthogonal directions and the sum of all moments about any points are zero. This is the definition of:

Equilibrium

The complete records of concrete tests shall be preserved and made available for inspection for a period of not less than how long after completion of the project?

2 years

What is the nominal thickness of a timber, according to the numerical value provided in the structural notes?

6 inches

What kind of handsaw is the other type mentioned, besides a rip cut saw?

Cross cut saw

What term refers to the force adhesion per unit area of contact between two bonded surfaces?

Bearing Stress

What structural member is defined as spanning from truss to truss or supporting a rafter?

Purlin

What is the law that relates the linear relationship between stresses and strain?

Hook's Law

For timber connections, what is the minimum spacing of bolts measured from center to center of bolts, parallel to the grain loading?

4 x diameter of bolt

The NSCP specifies the spacing between rows of bolts for perpendicular to grain loading shall be at least how many times the bolt diameter for an L/d ratio of 2?

2.5

What is the minimum diameter of bolts to be used in timber connections according to NSCP specifications?

12 mm.

Simple solid timber columns have a slenderness ratio not exceeding what value?

50

For sawn lumber bending members, notches shall not exceed what fraction of the depth of the member?

1/6 depth of member.

Where shall notches in sawn lumber not be located?

Middle third span

What is the allowable stress for tension on pin-connected members based on net area?

0.45 Fy.

For structures carrying live loads which induce impact, the assumed live load for supports of elevators shall be increased by what percentage?

100%

The slenderness ratio of compression members shall not exceed what value?

200

The slenderness ratio of main members in tension shall not exceed what value?

240

What is the minimum clear spacing between parallel bars in a layer, according to db but not less than 25 mm?

db

For high-early strength concrete, curing shall be maintained above 10 degree C and in a moist condition for at least how many days after placement?

3 days

Standard hooks for stirrups and ties for a 16mm bar or smaller use what degree bend and extension?

90 deg. Bend + 6db

What is the allowable tolerance on minimum concrete cover for a depth greater than 200 mm?

±12 mm

Individual bars within a bundle terminated within the span of flexural members shall terminate at diAerent points with a stagger of at least how many bar diameters?

40 db

What is the minimum center-to-center spacing of pre-tensioning strands at each end of a member?

4 db

For cast-in-place concrete against permanently exposed earth, what is the minimum concrete cover for reinforcement?

75 mm

What condition requires that interior columns be about two times stiAer than exterior columns to achieve a balanced frame action?

Balanced Frame Action

What is defined as a method of pre-stressing in which tendons are tensioned after concrete has hardened?

Post-Tensioning

What are shores placed snugly under a concrete slab after the original forms and shores have been removed, requiring the new slab to support its own weight and existing construction loads?

Reshores

What is structural concrete in which internal stresses have been introduced to reduce potential tensile stresses in concrete resulting from loads?

Prestressed Concrete

What term describes reinforcement used to resist shear and torsion stresses in a structural member, typically bent into L, U, or rectangular shapes?

Stirrup

What is a wall segment with a horizontal length-to-thickness ratio between 2.5 and 6, and whose clear height is at least two times its horizontal length?

Wall Pier

What method connects precast members using cast-in-place concrete or grout to fill the splicing closure?

Wet Connection

What structural member is an assemblage of framing members designed to support gravity loads and resist lateral forces?

Structure

What is the nominal size of the largest inside diameter of conduit/pipe that may be considered as replacing structurally in compression the displaced concrete?

50 mm

For conduits and pipes embedded within a column, they shall not displace more than what percentage of the area of the cross-section?

4%

When conduits and pipes are embedded in a slab, wall, or beam, they shall not be larger in outside dimension than what fraction of the overall thickness of the member?

1/3

What is the minimum bend diameter for a 32mm bar size (not for stirrups and ties)?

8 d_b

For structural steel, what is the allowable shear stress on the cross-sectional area eAective in resisting shear?

0.40 Fy

In walls and slabs, primary flexural reinforcement shall not be spaced farther apart than 3 times the thickness, nor farther than what distance?

450 mm

For a precast beam or column, not exposed to earth or weather, the minimum concrete cover for primary reinforcement must not be less than 15mm and need not exceed what maximum value?

40 mm

Which construction method's advantages include short construction time, low labor cost, smooth concrete surface, and minimum construction joints?

Slip Form Method

What is the collective name for loads that are relatively constant over time, including the weight of the structure itself and immovable fixtures?

Dead loads

Loads that are temporary, of short duration, or moving are generally referred to as:

Live loads

Where shall construction joints in floors be located?

Within the middle third of spans

What is the NSCP-specified minimum required penetration for nails and spikes for which the wire gauges or lengths are not set forth in the specifications?

11 diameters

What refers to a type of load that stresses a member or fastening to the full allowable stress, and may be applied for approximately 10 years?

Normal Loading

For Cast-in-place concrete not exposed to weather, what is the minimum concrete cover for primary reinforcement in beams and columns?

40 mm

What structural terminology refers to a horizontal or nearly horizontal system acting to transmit lateral forces to the vertical resisting elements?

Diaphragm

What is the boundary element of a diaphragm or a shear wall which is assumed to take axial stresses analogous to the flanges of a beam?

Diaphragm Chord

What is the maximum clear spacing between spirals for spiral reinforcement in cast-in place construction?

75 mm

What is the minimum size of spirals allowed for cast-in-place spiral reinforcement?

10 mm diameter

What is the minimum clear spacing between parallel bars in two or more layers?

25 mm

When a column face is offset 75mm or greater, what is the required solution for longitudinal bars?

Separate dowels, lap spliced, shall be provided.

For tension in structural steel based on eAective net area, what is the allowable stress?

0.50 Fu

What is the ratio of a column's effective length to its least radius of gyration?

Slenderness Ratio

What is the minimum clear distance between longitudinal bars in spirally reinforced or tied reinforced compression members?

40 mm

What is a structural system with an essentially complete space frame providing support for gravity loads, where resistance to lateral load is provided by shear walls or braced frames?

Building Frame System

What material is defined as a fibrous-felted, homogenous panel made from lignocellulosic f ibers (usually wood or cane) having a density of less than 497 kg/cu.m. but more than 160 kg/cu.m.?

Fiberboard

The term Dressed lumber is referred to as:

Smoothed and planed lumber

For flexural members with compact sections in structural steel, what is the allowable bending stress (Fb)?

0.66 Fy

What is the required number of extra turns of spiral bar or wire at each end of a spiral unit to provide anchorage of spiral reinforcement?

1½ extra turns

What is the maximum number of bars allowed to be enclosed within stirrups or ties in one bundle?

4 bars

What structural terminology refers to an extension or increase in floor area or height of a building or structure?

Addition

What term refers to the period of continuous application of a given load or the aggregate of periods of intermittent application of the same load?

Load Duration

What type of concrete reinforcement is defined as reinforcement that does not conform to the definition of deformed reinforcement?

Plain Reinforcement

What material is defined as fibrous-felted, homogenous panel made from lignocellulosic f ibers consolidated under heat and pressure in a hot press to a density not less than 497 kg/cu.m.?

Hardboard

What refers to a material encasing a pre-stressing tendon to prevent bonding the tendon with the surrounding concrete?

Sheathing

What type of wood species is listed as being Decay resistant?

Dao

For Prestressed concrete slabs exposed to earth or weather, what is the minimum concrete cover?

25 mm

What is the term for a precast concrete element that is cast in other than its final position in the structure?

Precast Concrete

What material is defined as a manufactured panel product consisting of particles of wood or combinations of wood particles and wood fibers bonded together with synthetic resins or other suitable bonding system?

Particle Board

In precast, non-prestressed slabs/walls not exposed to earth, what is the minimum cover for a 36mm diameter bar and smaller?

15 mm