HEAT STRESS

Question 1

Examples of routine operations

Answer 1

light work
sweeping
painting
cleaning lube oil strainers

Question 2

changes to the PHEL curve for non-routine operations

Answer 2

use the next higher PHEL

Question 3

Examples of heavy work load

Answer 3

replacing large valves
cleaning lube oil slumps
dis/assembly of large or heavy equipment
stay times start at PHEL VI

Question 4

How do stack gases form

Answer 4

combustion gases which may accumulate in a space due to inadequate ventilation or a machinery malfunction

Question 5

How do stack gases effect the body

Answer 5

cause vasodilation on peripheral blood vessels which results in further impairment of the cardio system

Question 6

S/S of stack gases

Answer 6

watery eyes
dyspnea
tingling or numbness of the tip of the tongue, tip of the nose, finger tips, or toes
mild sensation of alcohol intoxication

Question 7

How long do you keep heat stress records for? who keeps the records

Answer 7

a year/SMDR

Question 8

T/F: SAMS generated reports are authorized and can be maintained on file by computer storage for periodic inspection by ISIC or higher authority

Answer 8

T

Question 9

for a dry bulb to be considered accurate, it has to be within what temp range of the WBGT

Answer 9

must be within 5 degrees of the WBGT to be representative of the worspace temperature

Question 10

What if the dry bulb is not within range of the WBGT

Answer 10

if not within 5 degrees of the WBGT, the dry bulb thermometer shall be repositioned to ensure representative temperature.

Question 11

How often do you need to read DB temperatures if it does NOT exceed 85degrees

Answer 11

4 hours

Question 12

When would a dry bulb need to be read hourly

Answer 12

If there are heat casualties

temperatures exceed 85 degrees.

Question 13

At all manned watch/workstations within the space whenever the temperature from a permanently mounted hanging DB thermometer reaches or exceeds the following temperature requirements:
-PHEL 1-III when watch work length is __ hours or less and DB is equal or greater than 100

Answer 13

4 hours

Question 14

At all manned watch/workstations within the space whenever the temperature from a permanently mounted hanging DB thermometer reaches or exceeds the following temperature requirements:
-PHEL 1-III when watch work length is greater than ___ is equal or greater than 100

Answer 14

4 hours

Question 15

Reasons for a heat survey to be triggered

Answer 15

• exceeds specific temperatures set by the length of watch length
• in any space that a heat casualty occurs
• during a drill set that exceeds 3 hours in duration
• CO direction

Question 16

If the RSS-220 is working properly, the acceptable range will be what

Answer 16

100.0 +/- 0.2 degrees

Question 17

how is the RSS-220 positioned

Answer 17

chest level, 18in away from the body

Question 18

How long do you wait before taking DB readings

Answer 18

wait 5 mins for the initial DB reading and wait 3 minutes for subsequent readings.

Question 19

When do you do a follow on survey

Answer 19

• if the survey resulted in a stay time greater than the duration of the normal watch or work period and did not require a change from the normal watch/workstation time; then no further follow on surveys are required, unless the DB temperature increases by more than 5 degrees from the hanging DB temperature in the previous survey.
• When a survey resulted in a PHEL stay time less than the duration of the watch/workstation time then adjustment of the watch/workstation duration will be made; no further survey is required unless the DB temp increases by 5 degrees or returns to normal