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Tech Grade 8
Test Description: Tech
Instructions: Answer all questions to get your test result.
1) How many types of forces are there
A
1
B
7
C
4
D
3
2) Name the forces
A
Compression Force
B
Tension Force
C
All
D
Torsion (torque) force, Shear force
3) Describe Compression force
A
Member of the structure will feel a squashing force
B
A squashing force
C
Forces act or push TOWARDS each other
D
All
4) What is a strut
A
the legs of a table
B
Member of a structure under COMPRESSION
C
none
D
The pylon poles
5) Describe a Tension force
A
Opposite of compression
B
It is a stretching force
C
Two forces act or move AWAY from each other
D
All
6) What is a tie
A
Under force
B
None
C
Tie worn with a suit
D
A member in a structure under TENSION is called
7) Describe Torsion (torque) force
A
All
B
Turning force
C
When it acts ON a member
D
It feels a twisting force
8) Define Shear Force
A
One part of the member is forced to move OVER the other
B
None
C
First 2
D
Tearing force
9) Example of Compression
A
The first 2
B
Cutting an apple
C
Pressing an orange
D
Forcing a rolling newspaper into a ball
10) Example of tension force
A
None
B
Elastic band
C
all
D
Legs of table
11) What type of shape is used to strengthen frame structures
A
Oval
B
Circle
C
Triangle
D
Square
12) When extra members are added to main structure this is called
A
Triangulation
B
None
C
All
D
Cross bracing
13) The more triangles a frame has the stronger it will be
A
No
B
-
C
False
D
True
*select an answer for all questions
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