Question

UESTION 6

Two or more parts rotating in opposite directions create a __________.

	a.	inrunning
	b.	shear point
	c.	nip point
	d.	pinch point

The process of replacing a process to reduce exposure to a hazard is ___________.

	a.	substitution
	b.	location
	c.	safeguarding
	d.	worker rotation

The most hazardous type of woodworking machinery is_________?

	a.	jointers
	b.	lathes
	c.	saws
	d.	power feed planers

Who may remove a lockout/tagout device?

	a.	any authorized employee
	b.	only the person who applied the devcie
	c.	a supervisor
	d.	all of the above

The OSHA standard for control of hazardous energy sources (lockout/tagout) is 29 CFR 1910.______.

	a.	147
	b.	132
	c.	212
	d.	1200

Answer 1

1. Two or more parts rotating in opposite directions create a "nip point"

Explaination: Parts can rotate in opposite directions while their axes are parallel to each other. These parts may be in contact (producing a nip point) or in close proximity. In the latter case, stock fed between two rolls produces a nip point. As seen here, this danger is common on machines with intermeshing gears, rolling mills, and calenders.

2. The process of replacing a process to reduce exposure to a hazard is "safeguarding"

Explaination: Safeguards that are missing, altered, or damaged also should be reported so appropriate action can be taken to insure against worker injury. special safeguarding equipment may be needed solely to protect the oiler from exposure to hazardous moving parts.

3. The most hazardous type of woodworking machinery is "saws"

Explaination: Machines used in woodworking are dangerous, particularly when used improperly or without proper safeguards. Workers operating woodworking equipment suffer the following common injuries: laceration, amputation, severed fingers, and blindness. Safety hazards can cause immediate injury to a worker. For example, if not properly grounded, the metal framework of a circular saw could become energized and possibly electrocute an employee. Or, if a worker's hands were to contact a saw blade, he or she could have one or more fingers cut off.

All saws pose potential hazards for operators. EHS professionals can minimize these hazards by:
providing training for operators, ensuring that all machinery is properly guarded.

4. Who may remove a lockout/tagout device?

Answer is "all of the above"

Explaination: When the authorized employee who applied the lockout or tagout device is not available to remove it, that device may be removed under the direction of the employer, provided that specific procedures and training for such removal have been developed, documented, and incorporated into the employer's energy control program

In other words, under proper authorization of the employer, a supervisor may remove an employee’s lockout lock. This exception is only allowed under the circumstances that the employee who placed the lock is unavailable and it is absolutely necessary that the unit be returned to normal operation.

5. The OSHA standard for control of hazardous energy sources (lockout/tagout) is 29 CFR 1910.147

Explaination: The OSHA standard for The Control of Hazardous Energy (Lockout/Tagout), Title 29 Code of Federal Regulations (CFR) Part 1910.147, addresses the practices and procedures necessary to disable machinery or equipment, thereby preventing the release of hazardous energy while employees perform servicing and maintenance activities. The standard outlines measures for controlling hazardous energies—electrical, mechanical, hydraulic, pneumatic, chemical, thermal, and other energy sources.