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Test Description: Tech
Instructions: Answer all questions to get your test result.
1) What are beams
A
Beams are used when structure needs to span a space
B
All
C
Structure member that has to resist a bending force
D
Carry a load. eg. Bridge construction
2) What is bending force
A
All
B
Beam loaded upper section experience compression force
C
Combination of compression and tension
D
Beam loaded lower section experience tension force
3) What is stiffness
A
None
B
Certain beam on a structure can resist the force
C
All
D
This depends on what material it is made from
4) What runs through the centre of the beam under load
A
The line keeps its length
B
All
C
Imaginary line called neutral axis
D
Material above is being compressed and material below is being stretched
5) What is a lintel beam
A
Concrete lintels are often used in architecture
B
All
C
It spans a space between two supports
D
eg. our roof that divides our dining room and bedrooms upstairs
6) Concrete is
A
Weak under tension
B
Very strong in compression
C
All
D
They are reinforced on their undersides with steel rods
7) Column bridges
A
All
B
Have columns between the two ends
C
Are beam bridges that span longer spaces
D
Allows support moving over it
8) What is an Arch
A
All
B
Supports a mass above it
C
Must withstand great loads in the form of huge volumes of water
D
Curved structure
9) What holds the Arch togehter
A
none
B
Keystone
C
Steel pipes
D
Poles
10) What is built prior to the arch being built
A
A wooden frame is built
B
It allows stones or bricks to be in position
C
All
D
Frame is removed after all the stones are in position
11) Where would you typically use Arches
A
Office, entrances
B
Homes
C
All
D
Bridges
12) What was first used to build arch bridges
A
Stone
B
Iron
C
Steel
D
None
13) Who built the first arch bridges
A
All
B
South Africans
C
Europeans
D
Romans
14) Dam arch walls are built with
A
Concrete
B
Lintel
C
Stone
D
Pipe
15) Why is dam wall arched
A
To make it look nice
B
-
C
To transfer the force caused by the mass of water
D
for easy flow
*select an answer for all questions
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