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  • NGWA - General Drilling
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NGWA EXAM QUESTIONS WITH ANSWERS.

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2025/2026 Written for academic year
Institution NGWA - General Drilling
Course NGWA - General Drilling
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NGWA EXAM QUESTIONS WITH ANSWERS.

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NGW A /




EXAM QUESTIONS W ITH ANSW ERS
/ // // //




What /



precautions
/ /



must
/ /



be
/ /



used
/ /



when
/ /



sand
/ /



seams
/ /



are
/ /



encountered
/ /



in
/ /



air
/ /



rotary
/ /



drilling
/ /



in
/ /



unconsolidated
/ /



formation? -
/ // /



CORRECT ANSWERS(S)✅✅1.Reduced Air pressure
/ // // //




2. Use of Foam or Polymers
// // // // //




3. Monitor Cuttings
// //




4. Casing Advancement
// //




5. Slow Drilling Rate
// // //

, How /



are
/ /



samples
/ /



obtained
/ /



in
/ /



air
/ /



rotary
/ /



drilling
/ /



in
/ /



unconsolidated
/ /



formations? -
/ // /



CORRECT
/ /



ANSWERS(S)✅✅Continuous Sampling of Cuttings:
/ // // //




Split-spoon Sampling //




Drilling Fluids/Polymers //




Hole /



cleaning
/ /



and
/ /



penetration
/ /



rates
/ /



will
/ /



vary
/ /



with
/ /



air
/ /



rotary.
/ /



What
/ /

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