Bridge Study Guide

What percentage of workers were not wearing eye protection when an eye injury occurred?

• 30%

• 40%

• 50%

• 60%

The MUC for a half face air purifying respirator with a PEL for lead of 50 ug/m3 and a PF of 10 is:

• 5

• 10

• 50

• 500

Only _______ of laborers have normal hearing by the time they are 45 years old

• 10%

• 20%

• 30%

• 40%

The following should be available if there is a danger of falling into water:

• Coast Guard approved vest

• Boat

• Buoy with at least 90 feet of line

• Work vest that floats

• All of the above

Night workers and flaggers need to wear vests that ___________ light.

• Absorb

• Reflect

• Deflect

• Repel

Live parts of electrical equipment operating at ______ volts or more shall be guarded against electrical contact.mu

• 40

• 50

• 60

• 70

Temporary 120-volt outlets shall have an approved ________.

• Ground fault circuit interrupter
• Seal

• Plug In

• Power Cord

Extension cords used with portable electric tools shall be the _____ wire type designed for hard or extra hard use.

• 1

• 2

• 3

• 4

Extension cords shall be fastened with staples, hung from nails, or suspended with wires to keep cords from contacting the working surface.

• True

• False

The safe working distance for an unqualified worker working near overhead power lines of 50 kV (kilovolts) or less is:

• 10 feet

• 20 feet

• 30 feet

• 40 feet