GCSE D&T Unit 3 - Mechanical Devices Part 2

A bell crank linkage converts the input direction by how many degrees?

• 45
• 90
• 180
• 270

With a reverse motion linkage, when the input is pulled, the output will?

• Stay the same
• Pull
• Push

Crank and sliders convert rotary motion into what type of motion?

• Oscillating
• Rotary
• Reciprocating

Belts rely on _________ to grip onto a pulley.

• Friction
• Velocity
• Gravity

When the teeth of two or more gears are interlocked they form a _________?

• Simple Gear
• Gear Train
• Bevel Gear

Compound gears are used to speed up or slow down the?

• Input
• Output

An idler gear ensures that the direction of the drive gear and the driven gear are?

• The same
• Different

Bevel gears change the input direction through how many degrees?

• 45
• 90
• 180
• 270

Which workshop tool utilises the bevel gear?

• Hammer
• Hand Drill
• Mitre Clamp

Rack and pinions convert rotational motion into what type of motion?

• Oscillating
• Linear
• Reciprocating