Elec-CBT Review Part-3

Using the NFPA 70 NEC, Which Chapter and Article covers Cabinets?

• 110
• 250
• 312
• 500

Using the NFPA 70 NEC, Which Chapter and Article covers Flexible wiring?

• 100
• 200
• 300
• 400

What are Hazard Risk Categories used for?

• To warn you of hazards.
• To tell you how large a shock you might get from an electrical system.
• To tell you the voltage level of an electrical system.
• To select the correct PPE for a given task.

What are steel earthing rods normally coated with?

• Copper
• Grease
• Tin
• Zinc

What can be done to reduce corrosion of earth electrodes in the ground?

• Using dissimilar metals
• Adding water
• Soil conditioning
• Increasing ground temperature

What can happen to equipment if the wrong power charger is used?

• It will charge up quicker
• It will charge up slower
• It could damage the equipment
• It will not charge

What can reduce the effects of particulate erosion in a flow process?

• Thinner pipe
• Tighter bends
• Reduced flow rate
• Increased flow rate

What can two dissimilar metals in an electrolyte can create?

• Drops in air pressure
• Rise in air pressure
• An EMF
• A Resistance

What chapter in NEC discuss about communication systems?

• Chapter-6
• Chapter-7
• Chapter-8
• Chapter-9

What communication method is appropriate to record a process change to a safety related inspection activity?   

• Verbal discussion
• Mobile phone text
• Social media update
• Written instruction