NGWA General Drilling Exam Study/Review
guide Questions with verified correct
answers latest update
When considering the well site, the more important thing to consider is
the... --- correct answer ---... place where it is least likely to be
contaminated.
Air forced down the drill pipe... --- correct answer ---... clears drill cuttings.
The best method to drill a domestic water supply well in cavernous hard
rock would be... --- correct answer ---... cable tool.
The advantage(s) of reverse circulation drilling include(s)... --- correct
answer ---... porosity and permeability are relatively undisturbed.
The following drill rig is the least acceptable to drill through a consolidated
shale in sandstone formation... --- correct answer ---... a bucket rig.
(T/F) Cable tool rigs are advantageous for the following reasons:
1. Straightness of well.
2. Minimum maintenance.
, 3. Economical Use. --- correct answer ---True.
(T/F) Drilling mud viscosity can be accurately estimated by visual
inspection. --- correct answer ---False.
Chain and drive shaft guards... --- correct answer ---... should be kept in
place.
In performing adjusts to components that are driven by clutches and/or
drive shafts, you must... --- correct answer ---... shut unit down and lock out
before adjustments are made.
(T/F) A drilling fluid should do all of the following:
1. Cool the bit.
2. Promote longevity.
3. Remove cuttings from the bit surface.
4. Transport cuttings to the surface.
5. Plug lost circulation zones.
6. Promote hole stability. --- correct answer ---True.
A good preventative maintenance program will create... --- correct answer -
--... operators who have a thorough understanding of equipment.
guide Questions with verified correct
answers latest update
When considering the well site, the more important thing to consider is
the... --- correct answer ---... place where it is least likely to be
contaminated.
Air forced down the drill pipe... --- correct answer ---... clears drill cuttings.
The best method to drill a domestic water supply well in cavernous hard
rock would be... --- correct answer ---... cable tool.
The advantage(s) of reverse circulation drilling include(s)... --- correct
answer ---... porosity and permeability are relatively undisturbed.
The following drill rig is the least acceptable to drill through a consolidated
shale in sandstone formation... --- correct answer ---... a bucket rig.
(T/F) Cable tool rigs are advantageous for the following reasons:
1. Straightness of well.
2. Minimum maintenance.
, 3. Economical Use. --- correct answer ---True.
(T/F) Drilling mud viscosity can be accurately estimated by visual
inspection. --- correct answer ---False.
Chain and drive shaft guards... --- correct answer ---... should be kept in
place.
In performing adjusts to components that are driven by clutches and/or
drive shafts, you must... --- correct answer ---... shut unit down and lock out
before adjustments are made.
(T/F) A drilling fluid should do all of the following:
1. Cool the bit.
2. Promote longevity.
3. Remove cuttings from the bit surface.
4. Transport cuttings to the surface.
5. Plug lost circulation zones.
6. Promote hole stability. --- correct answer ---True.
A good preventative maintenance program will create... --- correct answer -
--... operators who have a thorough understanding of equipment.
