FOR KIM WOODS ONLY

Question 1

Table 3.16 in the textbook is the exposure guidelines for acclimated workers provided by NIOSH (1986). Using the table, find the Hourly Work/Rest Cycle for a standard worker in the following environment.Work load:

Heavy (>350W)

WBGT: 25.3 ºC

		Continuous work
		75% work/ 25% rest
		50% work/ 50% rest
		25% work/ 75% rest

Question 2

A (an) __________ is a portable sound measuring device for a worker who is fairly mobile and especially useful when the worker is changing locations frequently.

		sound level meter
		integrated sound level meter
		WBGT equipment
		noise dosimeter

Question 3

__________ is the measure of a stream of light falling on a surface.

		Photometric energy
		Illumination
		Luminance
		Contrast

Question 4

The __________ in the human eye is covered with two types of light-sensitive cells known as rods and cones.

		cornea
		retina
		nerve sheath
		optic nerve

Question 5

The visual sensory term __________ is the action of focusing on targets at various distances such as near-point and far-point.

		visual field
		accommodation
		convergence
		adaptation

Question 6

Which of the following is not a technique for controlling direct glare?

		Position luminaires as far from the operator's line of sight as is practical.
		Use several low-intensity luminaires instead of one bright one.
		Use surfaces that diffuse light such as non-gloss paper.
		Use light shields and hoods.

Question 7

Contrast is the difference between the luminance of an object and the luminance of surrounding surfaces. When the luminance of an object (Lmax) is 4 candela per square meter (cd/m2) and the luminance of surrounding surfaces (Lmin) is 2 candela per square meter (cd/m2), what is the contrast?

		2%
		20%
		25%
		50%

Question 8

Using Table 3.13 in the textbook, find the exposure time for a worker in the following environment.

Relative humidity: 50%

Work load: Heavy, 230-350W (>240-300 Kcal/h)

Ambient temperature: 41 ºC (106 ºF)

		5 minutes
		15 minutes
		30 minutes
		45 minutes

Question 9

Which of the following is not contained in the inner ear of the human?

		Cochlea
		Vestibule
		semicircular canals
		Ossicles

Question 10

Which of the following is not a technique to mitigate the effects of vibration?

		Source control
		General control
		Path control
		Receiver control

Question 11

Discuss the Case Study by Longmate and Hayes (1990) shown at the end of Chapter 3 in the textbook. Topics should include ergonomic risk factors and ergonomic solutions. What have you learned from the Case Study?

Your response should be at least 200 words in length. You are required to use at least textbook:

Bush, P. M. (2012). Ergonomics: Foundational principles, applications, and technologies. Boca Raton, FL: CRC Press.

as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have IN-TEXT CITATIONS!

Question 12

Discuss the methods of controlling thermal conditions. Include engineering controls, administrative controls, and work practices.

Your response should be at least 200 words in length. You are required to use at least textbook:

Bush, P. M. (2012). Ergonomics: Foundational principles, applications, and technologies. Boca Raton, FL: CRC Press.

as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have IN-TEXT CITATIONS!