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