Exam (elaborations)
CHST Exam Study Guide Questions With Complete Solutions
- Course
- Institution
CHST Exam Study Guide Questions With Complete Solutions
[Show more]
Content preview
CHST Exam Study Guide Questions WithComplete Solutions
Is a trench considered an excavation? Correct Answers Yes
HH HH
What is the distance a worker needs to maintain from power
lines? Correct Answers 10ft
HH HH
What does the severity of electric shock depend on? Correct HH
Answers Path of current, amount of current, duration of
HH
exposure
True or false: electrical current as low as 75 milliamps can cause
death? Correct Answers True
HH HH
What are some examples of surcharge loads? Correct Answers
HH
Spoils pile and equip being too close to walls
HH
What is the correct extension cord for construction? Correct HH
Answers 3 wire type designed for hard or extra hard use
HH
True or false: Exposed metal parts of equipment should be
grounded Correct Answers True
HH HH
How does a gfci protect against electrical shock? Correct
HH
Answers Detects the difference in current between the black
HH
and white wires
How can overloaded circuit hazards be controlled? Correct
HH
Answers Through the use of electrical protective devices
HH
,What are some examples of electrical protective devices?
Correct Answers Gfcis, fuses, circuit breakers
HH HH
What is static electricity? Correct Answers An electric charge
HH HH
that cannot move
How wide must the platform of a scaffold be? Correct Answers
HH
18 inches
HH
The platform of a scaffold must be capable of supporting its
weight and __________ times the maximum load. Correct HH
Answers Four
HH
The ropes or wires used in suspension scaffolds must be capable
of supporting ______ times the load. Correct Answers Six
HH HH
What should be used to restrain supported scaffold platforms
from tipping? Correct Answers Guys, ties, or braces
HH HH
What is Fall Prevention? Correct Answers The process,
HH HH
equipment, and methods used to actually prevent a fall from
occurring.
What is fall protection? Correct Answers The process,
HH HH
equipment, and methods used to protect a worker once a fall has
occurred.
The top edge height of a guardrail should be _________ in.
above the walking/working surface. Correct Answers 42 +/- 3
HH HH
, What are some common hazards associated with hot work?
Correct Answers -Health hazards (air contaminants from
HH HH
welding operations [iron oxide, zinc, beryllium, copper], burns,
burns to the eyes from flashes)
-Physical hazards (tripping from hoses)
-fires and explosions (igniting gases, improper storage)
What are some controls for the hazards created when performing
hot work? Correct Answers Protect or remove fire hazards in
HH HH
the area, confine heat, sparks, and slag, fire extinguishing
equipment available, ventilation
What are some common electrical hazards? Correct Answers
HH
Exposed electrical parts, overhead power lines, inadequate
HH
wiring, defective or damaged cords and wires, improper use of
flexible cords, improper grounding, overloaded circuits
What are some controls utilized for electrical hazards? Correct
HH
Answers Training, planning, gfci's, fuses, circuit breakers,
HH
lockout tagout
What are some common hazards associated with excavations?
Correct Answers Weight (nearby vehicles/equipment),
HH HH
vibration, underground utilities, water and soil erosion.
What is a surcharge load? Correct Answers The spoils pile and
HH HH
the equipment being too close to the vertical walls of the trench.
What are some common controls used to mitigate excavation
hazards? Correct Answers Sloping, shoring, shields, rpe
HH HH
designed protective systems, soil classification.
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 Classroom. 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.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79271 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now