Safety and Standards

What color is typically used for emergency stop buttons?

• Green

• Yellow

• Blue

• Red

What does LOTO stand for in industrial safety?

• Lift Out, Turn On

• Look Out, Tag Out

• Low Output, Total Off

• Level Out, Test Operation

Which of the following is a primary purpose of machine guarding?

• Improving machine appearance

• Preventing access to hazardous areas

• Increasing machine speed

• Reducing noise

According to electrical safety standards, what should be done before performing maintenance on electrical equipment?

• Notify supervisor only

• Disconnect and lock out power

• Reduce the voltage

• Wear standard work clothes

What type of fire extinguisher is appropriate for electrical fires?

• Class A

• Class B

• Class C

• Class D

What is the minimum safe distance from exposed energized parts for unqualified personnel according to NFPA 70E?

• 1 foot

• 2 feet

• 3 feet, 6 inches

• 5 feet

What does PPE stand for in workplace safety?

• Personal Protective Equipment

• Positive Pressure Environment

• Primary Power Equipment

• Potential Protection Elements

Which organization publishes the National Electrical Code (NEC)?

• ISO

• OSHA

• NFPA

• IEEE

What safety component monitors the position of a guard and prevents machine operation when the guard is open?

• Pressure mat

• Light curtain

• Interlock switch

• Emergency stop button

What is the primary purpose of grounding electrical equipment?

• To improve signal quality

• To provide a path for fault current to safely flow

• To increase power efficiency

• To reduce operating temperature