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Worksheetsgrade 9 mini test
Total questions: 22
Worksheet time: 11mins
orthographic drawings have a
front side and top view
bottom side and front view
top and bottom view
side and front view
wavy lines indicate where a part is
(a)
the picture on the left is an ---------- load whereas picture on the right is an ---------load
even and uneven
uneven and even
static and dynamic
even and dynamic
scratch and indentation are examples of
mass is ------------- whereas density is -----------
rebound and strength
flexible stiffness
resistance solid
corrosion solid
iron water and oxygen is an example of
chemicals
rust
carbonated water
none of the answers
this is an example of
hydraulics
pneumatics
gears
machinery
What is the formula to calculate Mechanical Advantage?
MA = EffortLoad
MA = LoadEffort
MA = Load x Effort
Identify all the Cleats.
Identify all Ratchet and Pawl Gears.
Transfers motion between two shafts running parallel to each other. They are characterized by their teeth, which are straight and parallel to the gears axis of rotation.
Spur Gear
Worm Gear
Bevel Gear
Crown Gear
A gear mounted to a straight rod, such that it moves in a linear fashion when torque is applied to it by a spur gear (known as the pinion gear).
Spur Gear
Crown Gear
Bevel Gear
Rack and pinion Gear
____________ gears come in pairs that mate together to transfer power between perpendicular shafts that have axes of rotation offset from one another. These gears resemble screws; as they spin they turn their mating wheel.
Spur gears
Bevel Gears
Crown Gears
Worm gears
The ______ gear is always the driving gear
Compound
rack and pinion
bevel
Worm
____ gears are used to transfer drive on a 90 degrees angle.
Bevel
Rack and pinion
Worm
Compound
The most common gear is the _____ gear with straight teeth, mounted parallel
bevel
worm
spur
idler
The idler gear allows the driven and driving gears to rotate in the same _______
speed
way
direction
momentum
