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