Engineering Materials Flashcards
- Which source or organization promotes a uniform organization system for organizing construction materials, specifications and documentation into Divisions and Sections for projects?
A. Sweet’s Catalog
B. Underwriters Laboratories
C. Construction Specifications Institute
D. American Society for Testing Materials
C. Construction Specifications Institute
- You are interested in finding all of the manufacturers technical lifting data for a permanent overhead crane that the Contractor will install in a manufacturing facility. What is the name of the Reference source?
A. Sweet’s Catalog
B. Thomas’ Register
C Engineering News Record
D. Crane and Riggers Association
B. Thomas’ Register
- Which organization is engaged in the standardization of technical specifications and testing methods?
A. Underwriters Laboratories
B. American Standards Association
C. Construction Specifications Institute
D. American Society for Testing Materials
D. American Society for Testing Materials
- Which organization investigates and tests materials, products, equipment, construction methods and construction systems to safeguard against hazards to life and property?
A. Underwriters Laboratories
B. American Standards Association
C. Construction Specifications Institute
D. American Society for Testing Materials
A. Underwriters Laboratories
- What are large stones that are placed at the end of culverts or along the edge of a body of water to prevent erosion called?
A. Riprap
B. Impurities
C. Weathering
D. Permeability
A. Riprap
- What are aggregate particles smaller than the size of a grain of sand called?
A. Riprap
B. Abrasion
C. Impurities
D. Permeability
C. Impurities
- What is a measure of the ease with which water will flow through an aggregate’s voids called?
A. Riprap
B. Impurities
C. Weathering
D. Permeability
D. Permeability
- What is the aggregate quality of resisting weathering called?
A. Abrasion
B. Adhesion
C. Soundness
D. Permeability
C. Soundness
- What type of pavement system is subject to abrasion throughout because the pavement continuously flexes under the weight of traffic?
A. Asphalt
B. Concrete
C. Gravel road
D. Sandy road
A. Asphalt
- What does a sieve size of No. 40 mean?
A. There are 40 openings per lineal inch
B. There are 40 openings per lineal foot
C. There are 40 inches of surface area
D. There are 1600 inches of surface area
A. There are 40 openings per lineal inch
- Which sieve size are the aggregates initially placed into for analysis?
A. 4 inches
B. 1/4 inch
C. No. 4
D. No. 200
A. 4 inches
- A gradation chart shows a line with a constant slope which indicates that approximately the same amount of material is retained on each successive sieve. What is this gradation called?
A. Gap-graded
B. Well-graded
C. Skip-graded
D. Uniformly-graded
B. Well-graded
- What is the weight of a Cubic Yard of concrete?
A. 150 pounds
B. 1350 pounds
C. 2430 pounds
D. 4050 pounds
D. 4050 pounds
- What is the term for a material that strains slowly when a force is applied to it for an extended period of years, even though the force is too small to cause failure in a short period of time?
A. Creep
B. Deformation
C. Working stress
D. Allowable stress
A. Creep
- What is the chemical reaction called when Portland cement is mixed with the water?
A. Setting
B. Adhesion
C. Hydration
D. Air-entrainment
C. Hydration
- Which of the following types of soil has high permeability?
A. Clay
B. Gravel
C. Solid Rock
D. Fine Sands & Silts
B. Gravel
- Which type of Portland cement is used where an early strength gain is important?
A. Type I
B. Type III
C. Type M
D. Type O
B. Type III
- Which concrete characteristic is improved by air-entraining the concrete?
A. Strength
B. Hydration
C. Sulfate resistance
D. Freeze-thaw resistance
D. Freeze-thaw resistance
- What is the most important parameter used to control the strength of concrete?
A. Air-entrainment
B. Water/Cement Ratio
C. Type of Portland Cement
D. Coarse/Fine Aggregate Ratio
B. Water/Cement Ratio
- What is Air-entrained Portland cement Concrete quite weak in?
A. Tension
B. Durability
C. Compression
D. Bond Strength
A. Tension
- Which technical resource must be consulted to determine the bar support spacing for a Concrete Bridge deck?
A. American Concrete Institute
B. Concrete Reinforcing Steel Institute
C. Construction Specifications Institute
D. American Society for Testing Materials
B. Concrete Reinforcing Steel Institute
- What is the diameter in inches of a #8 bar?
A. 1/8
B. ½
C. 1.0
D. 8.0
C. 1.0
- What is the weight of a bag of Portland Cement in pounds?
A. 50
B. 90
C. 120
D. 150
B. 90
- What is the weight of a #5 deformed bar in pounds?
A. 0.310
B. 0.625
C. 1.043
D. 1.963
C. 1.043
- Which materials are incorporated by reference and not normally shown on the plans or in the Technical Specifications?
A. Concrete
B. Bar Supports
C. Reinforcement
D. Welded Wire Fabric
B. Bar Supports
- Which type of masonry cement is used where bond and lateral strength are important?
A. Type I
B. Type III
C. Type N
D. Type S
D. Type S
- Which type of masonry cement is used for foundation walls and isolated piers?
A. Type K
B. Type N
C. Type O
D. Type S
D. Type S
- Which type of masonry cement is used for reinforced masonry?
A. Type K.
B. Type N.
C. Type O.
D. Type S.
D. Type S.
- Which of the following mortar ingredients improves the mortar’s workability?
A. Lime
B. Sand
C. Gravel
D. Portland cement
A. Lime
- Which of the following mortar ingredients decreases the shrinkage of mortar while setting and drying?
A. Lime
B. Sand
C. Water
D. Portland cement
B. Sand
- What ingredient is added to mortar for retempering?
A. Lime
B. Sand
C. Water
D. Portland cement
C. Water
- Which mortar property is increased by retempering?
A. Oxidation
B. Bond Strength
C. Weather Resistance
D. Compressive Strength
B. Bond Strength
- What is the strongest overlap of masonry units when building a wall?
A. No lap
B. One-quarter lap
C. One-half lap
D. One-third lap
C. One-half lap
- Structural bonding can be accomplished by tying two wythes together with a brick. When it is laid in this position, what is the brick position called?
A. Sailor
B. Header
C. Soldier
D. Stretcher
B. Header
- What is the most common brick position?
A. Shiner
B. Header
C. Rowlock
D. Stretcher
D. Stretcher
- What brick position is commonly used on window sills?
A. Sailor
B. Header
C. Soldier
D. Rowlock
D. Rowlock
- What is the weakest pattern bond?
A. Stack
B. Flemish
C. Running
D. Common
A. Stack
- Which of the following masonry components allows freedom of movement in a masonry wall?
A. Bond Beam
B. Control Joint
C. Vertical Joint reinforcement
D. Horizontal Joint reinforcement
B. Control Joint
- Which of the following masonry components are continuous, they may run around the perimeter of a building or between control joints and act as structural members, and they can provide bearing for beams and joists?
A. Lintels
B. Bond Beam
C. Control Joint
D. Vertical Joint reinforcement
B. Bond Beam
- Which of the following masonry components are used over openings in block walls to carry the load around the opening?
A. Lintels
B. Bond Beam
C. Control Joint
D. Vertical Joint reinforcement
A. Lintels
- Which type of wall is desired where there is severe weather exposure, or where a maximum resistance to rain penetration is desired?
A. Cavity
B. Veneer
C. Composite
D. Reinforced Masonry
A. Cavity
- What does the steel designation C 12 x 20.7 mean?
A. C is the steel shape, 12 is the nominal depth and 20.7 is the pounds per foot
B. C is the steel shape, 12 is the pounds per foot and 20.7 is the nominal depth
C. C is the steel series, 12 is the nominal depth and 20.7 is the pounds per foot
D. C is the flange width series, 12 is the pounds per foot, and 20.7 is the nominal depth
A. C is the steel shape, 12 is the nominal depth and 20.7 is the pounds per foot
- Which organization publishes structural steel design properties manuals and manuals that cover steel construction methods?
A. American Welding Society
B. The American Iron and Steel Institute
C. American Society for Testing Materials
D. American Institute of Steel Construction
D. American Institute of Steel Construction
- What are the drawings called that are issued to the contractor from the manufacturer indicating the locations and proper positioning of each piece of steel within the structure?
A. Shop Drawings
B. Erection Drawings
C. Working Drawings
D. Architectural Drawings
B. Erection Drawings
- What structural steel component is the steel designation “VL” referring to?
A. Angle
B. Steel Shape
C. Metal Decking
D. Open-web joist
C. Metal Decking
- What structural steel component is the steel designation “LH” referring to?
A. Channel
B. Steel Shape
C. Metal Decking
D. Open-web joist
D. Open-web joist
- Which of the following is structural steel most susceptible to for failure?
A. Fire
B. Rain
C. Snow
D. Chemical
A. Fire
- What is sprayed onto structural steel to increase its fire resistance capability?
A. Paint
B. Creosote
C. Preservative
D. Mineral wool
D. Mineral wool
- How is the fireproofing of a steel structure determined?
A. Size
B. Height
C. Occupancy
D. Adjacent structures
C. Occupancy
- What type of weld fits two pieces of metal together end-to-end for welding?
A. Slot
B. Butt
C. Plug
D. Fillet
B. Butt
- Assume you have a fillet weld symbol on the top of the welding symbol arrow. Which side will the weld be placed on?
A. The ends are welded
B. All sides all the way around
C. Arrow side that it is pointing to
D. Other side from where the arrow is pointing
D. Other side from where the arrow is pointing
- Assume you have a square weld symbol with a solid flag on a pole coming up from the change in direction of the arrow. What does the solid backwards flag on a pole tell you?
A. Field weld
B. Flush weld
C. Contour weld
D. Weld all the way around
Field weld
- If the weld is supposed to be on all four sides, what symbol will be used?
A. Circle
B. Single- V
C. Convex
D. Right Triangle
A. Circle
- What is the wood member called that is graded according to its bending strength on its narrow edge which is 2-4 inches thick and at least 6 inches wide?
A. Joists
B. Planks
C. Boards
D. Timbers
A. Joists
- What is the wood member called that is graded according to its bending strength on its narrow edge which is at least 4 inches thick and at least 2 inches wider than they are thick?
A. Planks
B. Light Framing
C. Post and Timbers
D. Beams and Stringers
D. Beams and Stringers
- What is the stress term called that has the narrow dimension carrying the load with the fibers at the top in compression and the bottom fibers are in tension?
A. Modulus of Elasticity (E)
B. Extreme Fiber Bending (Fb)
C. Horizontal Shear Parallel to the Grain (Fv //)_1
D. Compression Perpendicular to the Grain (Fc )
B. Extreme Fiber Bending (Fb)
- What is the stress term called in a wood frame structure which works in unison to support the load on the structure and allows part of the load from a weaker member to be distributed to adjacent members?
A. Modulus of Elasticity (E)
B. Tension parallel to the grain (Ft //)
C. Extreme Fiber Bending (Fb) in a Single member
D. Extreme Fiber Bending (Fb) in Repetitive members
D. Extreme Fiber Bending (Fb) in Repetitive members
- What is the wood member called that is graded according to its bending strength on its wider dimension which is 2-4 inches thick and at least 6 inches wide?
A. Joists
B. Planks
C. Boards
D. Posts and Timbers
B. Planks
- What is the wood member called that is graded according to its load being carried on the cross section?
A. Joists
B. Planks
C. Boards
D. Posts and Timbers
D. Posts and Timbers
- What is the stress term called that is induced by pressing the fiber together longitudinally on its cross section?
A. Tension parallel to the grain (Ft //)
B. Compression Parallel to the Grain (Fc //)
C. Horizontal Shear Parallel to the Grain (Fv //)_1
D. Compression Perpendicular to the Grain (Fc )
B. Compression Parallel to the Grain (Fc //)
- What is the stress term called that is induced by the tendency for the upper fibers to slide over the lower fibers as a beam bends?
A. Tension parallel to the grain (Ft //)
B. Compression Parallel to the Grain (Fc //)
C. Horizontal Shear Parallel to the Grain (Fv //)_1
D. Compression Perpendicular to the Grain (Fc )
C. Horizontal Shear Parallel to the Grain (Fv //)_1
- What is the stress term called which is a measure of the stiffness or resistance to deflection?
A. Modulus of Elasticity (E)
B. Extreme Fiber Bending (Fb)
C. Horizontal Shear Parallel to the Grain (Fv //)_1
D. Compression Perpendicular to the Grain (Fc )
A. Modulus of Elasticity (E)
- Which of the following values is a typical number for the Modulus of Elasticity (E)?
A. 90
B. 800
C. 1,800
D. 1,300,000
D. 1,300,000
- Which of the following soft wood species used for structural lumber have the highest Fiber Bending and Modulus of Elasticity (E) values?
A. Cedar and Larch
B. Loblolly Pine and Ponderosa Pine
C. White Spruce and Western White Pine
D. Douglas Fir and Southern Yellow Pine
D. Douglas Fir and Southern Yellow Pine
- Under the structural lumber classification system, what is the name of the top grade?
A. No. 1
B. Stud Grade
C. Construction Grade
D. Select Structural Grade
D. Select Structural Grad
- What is the structural lumber grade used where straightness and strength are the most important consideration, such as in concrete formwork?
A. No. 1
B. Standard Grade
C. Construction Grade
D. Select Structural Grade
C. Construction Grade
- What does the abbreviation of S2S stamp on a piece of lumber mean?
A. Select Two Sides
B. Select Two Edges
C. Smooth Two Sides
D. Smooth Two Edges
C. Smooth Two Sides
- What is the moisture content percentage of the lumber stamp abbreviation of S-DRY?
A. 1
B. 8
C. Less than 19
D. Greater than 19
C. Less than 19
- What does the B-B designation plyform refer to?
A. The category classification of lumber
B. The group number of relating to the number of plies
C. The front and back surface plies which have knots up to 1 inch on both sides
D. The front and back surface plies have a solid surface with smooth repair plugs
D. The front and back surface plies have a solid surface with smooth repair plugs
- What is the term for a material that deforms slowly when a force is applied to it for an extended period of years, even though the force is too small to cause failure in a short period of time?
A. Creep
B. Strain
C. Tension
D. Compression
A. Creep
- What is the stress term called that when the stress is induced by pulling apart in a longitudinal direction?
A. Tension Parallel to the Grain (Ft //)
B. Compression Parallel to the Grain (Fc //)
C. Horizontal Shear Parallel to the Grain (Fv //)_1
D. Compression Perpendicular to the Grain (Fc )
A. Tension Parallel to the Grain (Ft //)
- What term is a measure of its ability to cause turning, rotating or twisting about an axis of rotation?
A. Tension
B. Moment
C. Vertical Shear
D. Horizontal Shear
B. Moment
- What is the term where the force tends to cause a member to fail by cutting perpendicular to the beam’s longitudinal axis at or near the beam’s supports?
A. Tension
B. Moment
C. Vertical Shear
D. Horizontal Shear
C. Vertical Shear
- Assume you have a wooden beam that is 20 feet long and carries a concentrated load of 500 pounds at a distance of 15 feet from Reaction (R2). Reaction (R1) is pinned 5 feet from the load. What are the values in lbs for R1 and R2?
A. 475 and 25
B. 500 and 00
C. 375 and 125
D. 125 and 375
C. 375 and 125
- Assume you have a beam that is 16 feet long and carries a concentrated load of 900 pounds at a distance of 4 feet from R2. Reaction (R1) is pinned 12 feet from the load. Reaction R1 = 225 lbs and R2 = 675. What is the maximum shear in lbs?
A. 225
B. 675
C. 900
D. 1800
B. 675
- Assume you have a beam that is 16 feet long and carries a concentrated load of 900 pounds at a distance of 4 feet from R2. Reaction (R1) is pinned 12 feet from the load. Reaction R1 = 225 lbs and R2 = 675 lbs. What is the maximum bending moment in lb-ft?
A. 900
B. 1800
C. 2700
D. 3600
C. 2700
