CHST TEST QUESTIONS WITH 100% CORRECT ANSWERS UPDATED
0 view 0 purchase
Course
CHST
Institution
CHST
CHST TEST QUESTIONS WITH 100% CORRECT ANSWERS UPDATED
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 ...
CHST TEST QUESTIONS WITH 100%
CORRECT ANSWERS UPDATED
2024-2025
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 3/4:1
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 1/2:1
Solid rock is the only material in which - Answer-Vertical walls are allowed
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
