Power supplies

Which voltage is typically used on construction sites to reduce risk, and how is it commonly indicated?

• 230v, indicated by blue cables

• 110v, indicated by yellow cables

• 12v, indicated by red cables

• 48v, indicated by green cables

Why are battery-operated tools becoming more popular? Choose the best reason based on the material.

• They provide higher voltage than site supply

• They eliminate the need for transformers and are low voltage with no trip hazards

• They require yellow cables for safety

• They are mandated on all sites

Which feature allows a rotary hammer drill to drill into masonry and other building materials?

• Variable speed control

• Hammer action

• Brushless motor

• Cordless power

When securing a drill bit in a rotary hammer drill, what item may be required and must be kept safe?

• Depth stop

• Chuck key

• Torque collar

• Arbor adapter

Maintenance guidance for the rotary hammer drill states that the chuck should be kept _______.

• dry and dust-free

• well oiled

• painted

• replaced monthly

The SDS hammer drill uses a system that locks the drill bit in place. What is the name of this system?

• Secure Drill System

• Quick-Lock Mechanism

• Auto-Torque Control

• Bit Retention Module

Which statement best describes the capability of an SDS hammer drill beyond standard drilling?

• It can only drive screws.

• It can chisel and drill larger holes with core bits.

• It is limited to timber drilling.

• It operates only on low voltage.

Which voltage range is specified for cordless drills in this material?

• 6v–12v

• 12v–24v

• 14v–36v

• 24v–48v

Why do cordless drills present fewer trip hazards on site?

• They have shorter cords.

• They are battery operated with no cords.

• They include automatic cord reels.

• They are only used indoors.

Which of the following types are available as cordless tools according to the material?

• Only screwdrivers

• Screwdrivers and drills, including SDS drills

• Only SDS drills

• Only impact drivers