Question 1
Which of the following types of noise is interrupted by periods of low sound levels?
◦ Impact noise
◦ Intermittent noise
◦ Varying noise
◦ Impulse noise
Question 2
At what height should an employee be protected by guardrails or by a fall arrest system?
◦ More than 6 feet (1.8 meters) above a lower level
◦ More than 8 feet (2.4 meters) above a lower level
◦ More than 10 feet (3 meters) above a lower level
◦ More than 15 feet (4.5 meters) above a lower level