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WorksheetsGrade 9 Technology
Total questions: 20
Worksheet time: 40mins
Which part of a rack-and-pinion gear set rotates?
pinion gear
rack gear
Which part of a rack-and-pinion gear set moves in a straight line?
rack gear
pinion gear
If the distance between two teeth on the rack is 3cm, and the pinion has 18 teeth, how far will the rack move if the pinion makes one full revolution?
54cm
62cm
58cm
50cm
How a structure should be constructed, the size it should be, the types of materials that are used to construct it are all part of the structure's...
load
design
force
function
Corrosion resistance is the property of a material that...
allows heat to be conducted
prevents the action of substances such as acids, alkalis, and gases which tends to cause oxidisation
allows the action of substances such as acids, alkalis, and gases which causes mineralisation.
enables the formation of permanent deformation in a material.
Concrete has a relatively high...
tensile strength
torsion strength
bending strength
compressive strength
Which symbol represents first angle orthographic projection?
What type of gearing system would be used to move this gate?
rack-and-pinion
pulley system
bevel system
spur system
Name the main mechanism used in this illustration
(a)
Which type of compound system is this?
block and tackle
fixed
movable
groovy
In a hydraulic system, what is pressurised to achieve mechanical advantage?
master cylinder
slave cylinder
lever
engine
The definition of linear motion is
movement in a straight line
movement on an axis
movement in parallel
movement perpendicular to a stationary object
Pascal's principal states that...
pressure exerted on all parts of a hydraulic system will be transferred at the same time to some parts of the system
pressure exerted on one part of a hydraulic system will be exerted unequally, in all directions to other parts of the system
pressure exerted on one part of a hydraulic system will be transferred equally, without any loss, in all directions to other parts of the system
pressure exerted on one part of a hydraulic system will be transferred unequally to some parts of the system
In the relationship between velocity and force when working with gears...
the faster the turning speed (velocity) of a gear, the less turning force (torque) it transmits
the slower the turning speed (velocity) of a gear, the less turning force (torque) it transmits
the turning speed (velocity) of a gear affects the weight the turning force (torque) transmits
the turning speed (velocity) of a gear does not transmit force
The following are examples of mechanical control systems:
cleat, hydraulic, pawl, and disc brake
bicycle brake, disc brake, ratchet and pawl, cleat
disc brake, ratchet, bicycle brake, and pulley
cleat, disc brake, and gear
The mechanical advantage of a single wheel fixed pulley is...
MA > 0
MA < 0
MA = 0
MA ≠ 0
Match the picture of the gear to the correct gear's name.
Spur gear
Bevel gear
Rack-and-pinion gear
Worm gear
Match the picture of the gear to the correct gear's name.
Spur gear
Bevel gear
Rack-and-pinion gear
Worm gear
Match the picture of the gear to the correct gear's name.
Spur gear
Bevel gear
Rack-and-pinion gear
Worm gear
Match the picture of the gear to the correct gear's name.
Spur gear
Bevel gear
Rack-and-pinion gear
Worm gear
