CES Professional Standards & Best Practices 2

Question 1

When a blaster discovers that a misfire has occurred, the FIRST action required under OSHA 29 CFR 1926.911 is to:

Accepted Answer

Wait at least 30 minutes before approaching if using a fuse

Answer

OSHA 1926.911 requires a minimum 30-minute wait before approaching a misfired electric blast or one fired with safety fuse to allow any delayed detonation to occur.

Question 2

The IME (Institute of Makers of Explosives) Safety Library publications are primarily intended to:

Accepted Answer

Serve as voluntary industry safety guidance

Answer

IME Safety Library publications provide voluntary best-practice guidance for the explosives industry and complement but do not replace regulatory requirements.

Question 3

A licensed blaster accepting a new job assignment should verify which of the following FIRST?

Accepted Answer

That their license is valid in the state where work will be performed

Answer

State blasting licenses are jurisdiction-specific, and a blaster must confirm their license is recognized or valid in the state where the project is located before performing any work.

Question 4

Under ATF regulations, which record must be kept for ALL explosive transactions, whether purchase, use, or transfer?

Accepted Answer

ATF Form 5400.4 (Acquisition/Disposition Record)

Answer

ATF Form 5400.4 serves as the Acquisition and Disposition Record that federally licensed explosives dealers and users must complete for every explosive transaction.

Question 5

In a pre-blast survey, the purpose of documenting pre-existing cracks and settlement in nearby structures is to:

Accepted Answer

Establish baseline conditions to distinguish pre-existing from blast-caused damage

Answer

Pre-blast surveys document existing structural conditions so that any post-blast damage claims can be fairly assessed against a known baseline.

(CES) Certified Explosives Specialist Practice Test

(CES) Certified Explosives Specialist Practice Test

CES Professional Standards & Best Practices 2