DeWalt 52051 Manual De Instrucciones página 15

Operator's Name
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Check the correct answer.
1. It is necessary to read the Instruction Manual prior to
operating a D WALT low velocity tool.
e
o True
o False
2. When fastening into concrete, the base material should
be greater than the shank penetration by at least:
o 1 time
o 2 times
o 3 times
3. When operating a powder actuated tool, your hand
should never be placed:
o Around the tool body
o In front of the tool muzzle
o Over the tool handle
4. To determine the suitability of a base material, use the
fastener as a center punch.
If the fastener is blunted, do not fasten; the material
is too:
o Soft
o Hard
o Brittle
If the fastener penetrates easily, do not fasten; the
material is too:
o Soft
o Hard
o Brittle
If the material cracks or shatters, do not fasten; the
material is too:
o Soft
o Hard
o Brittle
QUALIFIED TOOL OPERATOR EXAMINATION
Date
Age
Date
5. Unsafe applications for powder‑actuated tools may be
caused by which of the following?
o A soft base material
o Improper powder load
o Fastening too close to an unsupported edge
o A malfunctioning tool
o Fastening into a spalled area
o Fastening through a pre‑existing hole
o All of the above
6. Which one of the following building materials is not
suitable as a receiving material (base material) for
powder‑actuated fasteners?
o Sheet rock
o Wood
o Fiberglass
o Sheet metal
o All of the above
7. When considering the safety of a particular application,
the operator must think about:
o The base material
o The powder load power level
o The operator's safety
o The safety of bystanders and fellow workers
o All of the above
8. The proper loading procedure is: insert fastener first,
powder load second. The fastener should always be
placed in the tool prior to the load.
o True
o False
9. Which one of the following materials is usually suitable
for powder‑actuated fastenings?
o Poured concrete
o Hollow tile
o Surface hardened steel
o Glazed brick
10. In concrete, a fastener should be driven no closer to an
unsupported edge than:
o 1/2" (13 mm)
o 1‑1/2" (38 mm)
o 3" (76 mm)
11. Fishhooking is a condition which can occur when
a powder‑actuated fastener strikes a piece of hard
aggregate or very hard concrete, bends and comes out
of the work surface. A fishhook can cause a serious injury
or death.
o True
o False
12. Placing a hand over the muzzle bushing of a loaded tool
can result in serious injury from piston overdrive or an
escaping fastener if the tool is discharged accidentally.
o True
o False
English
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