WCDI REVISION 1

The poor manual lifting posture is an example of

• physical hazard.

• biological hazard.

• ergonomic hazard.

• mechanical hazard.

Which one of the following PPE must not be worn when using a drilling machine?

• Ear mufflers

• Safety boots

• Safety gloves

• Safety glasses

Identify the type of drawing symbol shown.

• 1st angle projection

• 2nd angle projection

• 3rd angle projection

• 4th angle projection

The orthographic drawing is drawn in

• 1st angle projection.

• 2nd angle projection.

• 3rd angle projection.

• 4th angle projection.

The overall length 'X' is

• 30 mm.

• 40 mm.

• 50 mm.

• 60 mm.

Refer to the figure. Identify the correct side view of this object.

• 
• 
• 
• 

The basic SI unit of length is

• metre.

• kilometre.

• millimetre.

• centimetre.

Identify the type of force applied to the rope.

• Shear

• Tension

• Torsion

• Compression

What kind of force is used to remove the cap from the bottle?

• Shear

• Torsion

• Tension

• Compression

A pneumatic system is used to convert energy from the compressed air into

• heat energy.

• sound wave.

• electrical power.

• mechanical motion.