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PREPARE FOR A QUARRY BLAST SEC VI: APPENDIXES

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APPENDIX C: TEST AND TEST SOLUTIONS

051-62G1-E02 Prepare for a Quarry Blast Performance Evaluation

Action: Prepare for a quarry blast.

Conditions: At a training site, given predrilled bore holes, a demolition set,stemming material, FM 5-250, ST 5-250-1, TM 5-332, a tamping rod,the amount of inert det cord, MDI, and explosives specified by theblast design, a shovel, sandbags, coveralls, safety boots, goggles,gloves, hearing protection, and a hard hat

Standards: Prime explosives, load bore holes, and assemble a nonelectric firingcircuit for an inert blast in accordance with (IAW) the blast design,FM 5-250, ST 5-250-1, and TM 5-332, without damage to equipmentor the environment and without injury to personnel.

Safety

Requirements

Hard hats must be worn at all times. Hearing protection must be worn whileconducting live blast. Eye protection, gloves and proper foot protection must beworn. Special care and attention must be taken when working with live explosives.Use only non-sparking tools around blast material. No smoking or open flames inblast area

Risk

Assessment

Level

Medium

Environmental

Considerations

Avoid unnecessary stripping and damage to vegetation and waterways. Control dustconditions and limit water erosion by dressing area at the end of each day. Avoidunnecessary equipment usage and follow established procedures for cleanup of fluidleaks. Restore site and surrounding areas as close as possible to the originalecological condition.

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References

Required Number Title Date

Additional

Information

FM 5-250 Explosives and Demolition Jun 93

ST 5-250-1 Modernized Demolition Initiators Sep 96

* TM 5-332 Pits and Quarries Dec 67

Instructional

Guidance

Before conducting this evaluation,

a. Inspect evaluation site for completeness.

b. Ensure equipment is available and on site.

c. Ensure reference materials are on hand.

d. Ensure tool are available.

e. Ensure all student materials are on hand.

Learning Activity #1: Administer an examination

AC RC

Method of instruction: TE1 TE1Instructor-to-student ratio: 1:4 1:4Time of instruction: 2.0 2.0Media: Student guide Student guide

1. Introduction

a. Introduction of the instructor

b. Motivational statement

c. State action, conditions, standards, safety, risk assessment level, and environmentalconsiderations.

2. Test administration procedures

a. Explain the importance of passing this test.

b. Tell students what tasks will be evaluated.

(1) Prime explosives

(2) Load boreholes

(3) Assemble a nonelectric firing circuit

* This manual is currently being revised as a field manual (FM).

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c. Inform students of retest policy.

(1) Students that fail will be counseled.

(2) One retest may be given.

(3) Students will receive additional training prior to retest.

(4) Students will receive a retest only on tasks failed.

(5) Allow student questions.

3. Performance Evaluation Test

Provide the following information at the test site.

(1) Read the action, conditions, standards, safety, risk assessment level, and environmental

considerations statements.

(2) Inform students that a GO on all performance measures are required to receive a GO for theaction.

(3) Allow students to ask questions.

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APPENDIX C: TEST AND TEST SOLUTIONS

051-62G1-E02 Prepare for a Quarry Blast (TE1)

NAME CLASS NO.

UNIT ATTEMPT NO.

RESULTS

PERFORMANCE MEASURES OR TEST GO NO GO

NOTE: This performance evaluation is conducted using inert

explosives.

1. Prime explosives.

a. Primes explosives with inert det cord. _______ _______

b. Primes explosives with inert MDI. _______ _______

(1) End priming _______ _______

(2) Side priming _______ _______

2. Load boreholes.

a. Loads boreholes with inert det cord. _______ _______

(1) Column load _______ _______

(2) Deck load _______ _______

b. Load boreholes with inert MDI primed explosives. _______ _______

(1) Column load _______ _______

(2) Deck load _______ _______

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PERFORMANCE MEASURES OR TEST GO NO GO

3. Assemble a nonelectric firing circuit.

a. Assembles a nonelectric firing circuit with inert det cord. _______ _______

b. Assembles a nonelectric firing circuit with inert MDI. _______ _______

4. Performs all operations within safety guidelines _______ _______

Evaluators Overall Rating: _______ _______

Evaluators Comments:

Evaluator's Signature:

Date:

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