Coast Guard Cutter Heat Stress Program

Question 1

Where do conditions of excessive heat and humidity primarily exist on Coast Guard cutters?

Answer 1

Engine Room

Question 2

What is the basic instrument for assessing heat stress?

Answer 2

WBGT Meter

Question 3

What is the present procurement planning for WBGT meters?

Answer 3

It is based on the assignment of one unit per cutter with manned spaces that exceed 100 degrees F dry-bulb temperature.

Question 4

What is the WBGT Index, which the meter calculates?

Answer 4

WBGT = (0.1 x DB) + (0.7 x WB) + (0.2 x GT)

Question 5

According to the THE WBGT INDEX. What is the environmental data displayed by the WBGT meter?

Answer 5

• Shielded, ventilated dry-bulb (DB) temperature
• Shielded, ventilated wet-bulb (WB) temperature
• Globe temperature (GT)

Question 6

How do you determine when each sensor on the WBGT has stabilized?

Answer 6

Watch the 0.1 degree F digit of the display for when it stops changing, or when it oscillates between a larger and smaller value, the sensor has stabilized and the value can be recorded.

Question 7

What is Global Temperature?

Answer 7

It is a value that integrates radiant temperature and convective heat loss or gain–that is, the cooling or heating effects of air movement.

Question 8

What must happen each time the WBGT meter is used?

Answer 8

It is necessary to check the WBGT value displayed by the meter against the manually-calculated WBGT value and they must agree with in 0.2 degrees F.

Question 9

How often shall Heat Stress Meters be calibrated?

Answer 9

Annually

Question 10

Who shall be responsible for implementing the Heat Stress Program?

Answer 10

The Commanding Officer

Question 11

Where shall a Dry-Bulb Termometer be installed?

Answer 11

They shall be installed at key Internal Watch and Work Stations.

Question 12

Thermometers shall be mounted in such a manner that the bulb of the thermometer is not ______ by adjacent or local heat sources. Mount the thermometers in such spaces as main machinery spaces, main engine room spaces, auxiliary machinery spaces, laundry and scullery spaces.

Answer 12

Influenced

Question 13

What times and/or how often should Dry-bulb temperature readings shall be taken?

Answer 13

1000, 1200, 1400 and otherwise once every four-hour watch period.

Question 14

If the dry-bulb temperature exceeds ______ at any of the key watch or work stations, the (EOW) and, if assigned, the Health Service Petty Officer, shall be notified.

Answer 14

100 degrees F

Question 15

At what time shall a Wet-Bulb Globe Temperature (WBGT) shall be taken, using the WBGT meter?

Answer 15

If the dry-bulb temperature exceeds 100 degrees F at any of the key watch or work stations.

Question 16

Personnel exposed to a heat stress environment may stand watches as part of their recovery time so long as the space is___________.

Answer 16

Cool and Dry or Air-Conditioned

Question 17

Action required which is beyond the unit’s capability shall be identified to the district commander by the CSMP system and by a Hazardous Condition Notification (Form _______).

Answer 17

CG 5082

Question 18

What would you use in conjunction with the WBGT readings in order to determine the maximum permissible exposure duration or stay time at a level of heat stress?

Answer 18

The “PHEL Chart”

Question 19

The stay time shall be redetermined every watch or work rotation until the dry bulb temperature falls below ______.

Answer 19

100 degrees F

Question 20

What is the alternative Heat Stress Monitoring Method if an operable WBGT Meter is not available?

Answer 20

a Motorized Psychrometer

(NSN 1H-6685-00-935-1389)