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Tech Grade 8
Test Description: Tech
Instructions: Answer all questions to get your test result.
1) Unaligned forces pushing one part of a body in one direction, and another part the body in the opposite direction
A
The wedge
B
Shearing force
C
Hatching
D
Compression
2) A squeezing force.
A
The wedge
B
Compression
C
Hatching
D
Shearing force
3) An inclined plane or ramp.
A
The wedge
B
Compression
C
Hatching
D
Shearing force
4) A technique used by artists to enhance a drawing and make it look like more realistic by drawing parallel lines.
A
The wedge
B
Shearing force
C
Compression
D
Hatching
5) A solid beam that is supported only on one Side
A
Cantilever
B
Lintel
C
Ink washes
D
Compression
6) List THREE causes of structural failure.
A
Toppling over
B
All of the above
C
Bending
D
Fracture
7) Describe a queen post and state two of its uses in a frame structure.
A
They span for longer distance and thus it is able to be used for bigger building
B
All of the above
C
They are able to support a heavier load
D
Queen post has two supporting beams that are placed between tie beams
8) Mention TWO differences between suspension and an arch bridge
A
Neither
B
No. 1 and 2
C
The cables are under tension.
D
In a suspension bridge the weight is supported from cables overhead.
9) Mention TWO differences between suspension and an arch bridge
A
No. 2 and 3
B
The arch and struts are under compression.
C
In an arch bridge the weight is supported by struts and arch underneath.
D
Neither
10) What is meant by ‘meshing of gears’?
A
Meshing mean that gears are able to link or interlock with their teeth
B
The teeth will break
C
Gears are stuck
D
Meshing makes the gears move
*select an answer for all questions
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