Quiz
Structures and Force TOPICS 6-7
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Questions in this quiz (44)
1What is the force that resists or works against the movement of two surfaces rubbing together.
- AFriction
- BShear
- CCompaction
2Stable means less likely to tip.
- ATrue
- BFalse
3The material failure that occurs when you bend a disk enough to break it is......?
- AShear
- BTorsion
- CTension
4The Center of Gravity is the point at which all of the gravitational force of an object may be considered to act.
- ATrue
- BFalse
52 ways to stabilize a structure would be to build on a firm .................. and to balance the forces.
- AFoundation
- BFooting
- CPiling
6Gravity is the kind of force that is in effect when a building starts to lean over.
- ATrue
- BFalse
7A ........................ is a horizontal board or span supported by a very strong column at one end.
- AA Cantilever
- BA Footing
- CA Stabilization
8A Footing is a large, cylindrical structure used to carry the weight of a structure to a solid foundation material.
- ATrue
- BFalse
9What is the term for a concrete foundation beneath a house basement walls.
- AA Footing
- BA Piling
- CA Stable
10A Gyroscope is a circular device with a heavy outer rim that spins at a very fast rate.
- ATrue
- BFalse
11.................. .................... is the tendency of an object that is spinning on its axis to move in a predictable manner.
- ASpin Stabilization
- BSpin Exertion
12The weight of a load acting on a structure would be an internal force
- ATrue
- BFalse
13The weight of a structure itself would be an ........... force acting on the structure.
- AExternal
- BInternal
14Friction would prevent a beam from sliding off of it's columns.
- ATrue
- BFalse
15The ............. the friction between a fastener and the material into which it is driven, the less likely the fastener will slip out.
- AGreater/Faster
- BLess/Slower
16Fasteners with rough surfaces can easily be driven into a structure but may just as easily become loose and fall out.
- ATrue
- BFalse
17A cantilever must be able to withstand ............. forces on top.
- ATension
- BCompression
18A cantilever must be able to withstand ...................forces underneath.
- Acompression
- Btension
19The wavelike shape in the corrugated cardboard gives the cardboard strength
- ATrue
- BFalse
20Guitars go out of tune when there is too little compression in their tuning pegs.
- ATrue
- BFalse
21When an object falls the .............................. falls in a straight line.
- Acentre of gravity
- Bbalance of gravity
22Pilings support the weight of many bridges and buildings.
- ATrue
- BFalse
23Spreading the weight of the walls over a larger area reduces the stress on every part of the soil
beneath them.- ATrue
- BFalse
24Heave is the upward movement of a foundation or slab caused by underlying soils that expand or swell. That's how a tilt in the sidewalk is created.
- ATrue
- BFalse
25A failure to build the base to proper specifications will lead to eventual sinking and collapse of a driveway.
- ATrue
- BFalse
26When the object is lined up with the force of gravity acting on the centre of gravity, the object
is balanced.- ATrue
- BFalse
27When the object is not supporting the centre of gravity, the object
begins to fall.- ATrue
- BFalse
28Friction helps hold the structure in place when the wind or other
forces try to lift or tip it.- ATrue
- BFalse
29Brick walls are held together by friction
- ATrue
- BFalse
30Friction resists against movement between two surfaces that rub
together.- ATrue
- BFalse
31Friction can help keep pieces of the structure from moving apart
- ATrue
- BFalse
32 Concrete and mortar have very low compressive strength if
they are made according to the correct recipe.- ATrue
- BFalse
33Concrete becomes weak when it is pulled or sheared.
- ATrue
- BFalse
34 rope and chain have high tensile strength when used for a swing.
- ATrue
- BFalse
35Concrete is good for swings because it won't rot when the structure becomes wet.
- ATrue
- BFalse
36Brittle structures and objects will bend easily when torsion is enforced.
- ATrue
- BFalse
37Steel has neither tensile or compression strength
- ATrue
- BFalse
38What methods to designers use to make a good, stable structure?
- ADistribute the load throughout the structure so that no single part is
carrying most of the load. - BDirect the forces along angled components so that the forces hold
pieces together instead of pulling them apart. - CShape the parts to withstand the specific type of force they are likely
to experience. - DAll of the Above (or Below)
- ADistribute the load throughout the structure so that no single part is
39Rectangular frames are probably the easiest to build. However, load forces can easily push or pull them out of shape.
- ATrue
- BFalse
40................. shapes are much stronger than rectangles.
- ATriangle
- BCircle
- CSquare
- DNone of the Above (or Below)
41Any structure with a load-bearing, horizontal beams supported only at the ends, may bend in the
centre. This bending directs forces outward on the vertical beams.- ATrue
- BFalse
42The central stone in an arch is called a ....?
- AKeystone
- BMiddle stone
- CStructure stone
43A cantilever is a horizontal board or span, supported by a very strong column at one end.
Double cantilever bridges are very strong structures and support heavy vehicles.- ATrue
- BFalse
44......................... were used to make huge building in 1162. Nature still uses similar techniques.
- AFlying buttresses
- BSpringbank braces
- CCylindrical columns
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- Description
- Quiz on Structures and Force TOPICS 6-7, created by Mari Tempest on 23/05/2018.
- Author
- Mari Tempest
- Language
- English
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