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CHST Exam Study Guide Questions with Complete Solution, Exams of Community Health

Michigan State University (MSU)Community Health

CHST Exam Study Guide Questions with Complete Solution

Typology: Exams

2025/2026

Available from 04/03/2026

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CHST Exam Study Guide Questions with Complete
Solution
1910 CFR - ANSWER General Industry Standards
1926 CFR - ANSWER Construction Standards
1915/1917/1918 CFR - ANSWER Maritime Indistry
Leading cause of fatalities - ANSWER Falls from Heights
Leading Cause of Injuries - ANSWER Slips and trips
homocide - ANSWER 2nd leading cause of workplace fatalities
fire extinguishers places within every - ANSWER 3000 sq. Ft of protected building area
Multi story structures need fire extinguishers - ANSWER On each floor regardless of sq. Ft
Pyrophorics - ANSWER Undergo chemical changes upon contact with air which produces
burning
Flammable liquids have a flash point which is below - ANSWER 100 degrees Fahrenheit
Combustible liquids are ignited at - ANSWER Between 100to 200 degrees Fahrenheit
Fire Class A - ANSWER Most common type fire. Combustibles like wood, cloth and paper. Use
class A fire extinguishers or water
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CHST Exam Study Guide Questions with Complete

Solution

1910 CFR - ANSWER General Industry Standards 1926 CFR - ANSWER Construction Standards 1915/1917/1918 CFR - ANSWER Maritime Indistry Leading cause of fatalities - ANSWER Falls from Heights Leading Cause of Injuries - ANSWER Slips and trips homocide - ANSWER 2nd leading cause of workplace fatalities fire extinguishers places within every - ANSWER 3000 sq. Ft of protected building area Multi story structures need fire extinguishers - ANSWER On each floor regardless of sq. Ft Pyrophorics - ANSWER Undergo chemical changes upon contact with air which produces burning Flammable liquids have a flash point which is below - ANSWER 100 degrees Fahrenheit Combustible liquids are ignited at - ANSWER Between 100to 200 degrees Fahrenheit Fire Class A - ANSWER Most common type fire. Combustibles like wood, cloth and paper. Use class A fire extinguishers or water

Fire class B - ANSWER Ignition of flammable liquids. Water will not extinguish class b. And should be put out with foam,CO2, or Dry chemicals Fire class C - ANSWER Are electrical fires. 1st response should be to cut off power source to reduce to class A type fire Class D - ANSWER Metal fires. Flammable metals like titanium and Magnesium is recommended by the NFPA to extinguished with DRY POWDER not to be confused with dry chemical Class K - ANSWER Cooking oils are extinguished with dry chemicals Do NOT use water. Dust explosions can be ignited by - ANSWER Static electricity Combustible material May not be stored - ANSWER In stairwells hallways or any passage where workers routinely travel combustibles or flammables liquids in the amount of more than a gallon can be store only - ANSWER In approved metal safety cans Flammable and combustible liquids of more than 25 gallons - ANSWER Should be stored in exterior plywood min 1 inch thick and must be labeled A pre discharge is a - ANSWER Alarm that sounds seconds prior to the discharge of a sprinkler system According to NSCouncil. What percentage of injuries a related to back injury - ANSWER 20% Ameliorate - ANSWER Improve or make better

One of the four specific provisions of those requirements included for underground cavities tunnels shafts and excavation is that air flow direction can be - ANSWER Reversed In underground excavation ventilation doors must be designed to - ANSWER Remain closed when in use regardless of the direction of airflow. Ventilation doors are designed to provide a barrier to dangerous fumes should they build up in adjacent areas Underground entry and exit points must be strictly controlled with - ANSWER Appropriate safety signs When ever any employee is working underground - ANSWER A designated person must be present above ground When workers are working underground the designated person is required to - ANSWER Keep a running count of the number of underground workers and to secure communicate a rescue response when necessary Whenever employees working underground number 25 or more regulations require that - ANSWER The employer make contingency plans with locally available trained rescue personnel When 25 or more employees are working underground contingency must be made for - ANSWER 2 Rescue teams. One team must be located within a half hour travel distance the other must be within a two hour travel period. If less than 25 persons are working underground contingency plans may involve - ANSWER A Single rescue crew within 1/2 an hour travel time from the job site When digging a trench 20 ft deep or deeper it is required to - ANSWER Have a engineer to design a safe strong reliable way of shoring up excavation Clay is a Type. At 20ft or less can be sloped at - ANSWER Type A. Sloped at 53 degrees or 3/4:

Gravel and silt are type. - ANSWER B. At 20 ft or less can be sloped at 45 degrees or 1:1 ratio Sand is Type - ANSWER Type C. 34 degrees or 1 1/2: Solid rock is the only material in which - ANSWER Vertical walls are allowed If sloping is undesirable - ANSWER Shielding May be used such as trench boxes or trench shields minimum inspection of excavation site is - ANSWER Daily, but inspection should be done every time a change in work/weather A worker should not have more than? To reach a means of safety exit - ANSWER 25ft Stairways, ladders, ramps or other safe means of evacuation from trenches and ditches are required if they are? or more - ANSWER 4ft or more True or false. If utility company does not respond to request within 24 hours. Construction company may begin work on excavation - ANSWER True WBGT= - ANSWER 0.7 NWB+0.2GT+0.1DB WBGT stands for what? - ANSWER Wet Bulb, Globe Temperature NWB stands for what? - ANSWER Non-Weight-bearing NWB stands for what? - ANSWER Natural wet-Bulb temp