BMST Test Latest Update 2025-2026 Exam 115
Questions with 100% Verified Correct Answers
Guaranteed A+
Chemical notation for plaster? - CORRECT ANSWER: 2CaSO4H2O
Define Brittle failure - CORRECT ANSWER: Metal permanently and suddenly deforms,
fracturing or breaking apart
Define Brittleness - CORRECT ANSWER: Inability of a metal to withstand SHOCK
LOADING - deforms with a sudden, sharp application of force
Define Corrosion resistance - CORRECT ANSWER: ability of a metal to resist chemical
degradation
Define Ductile fracture - CORRECT ANSWER: Failure or fracture of a ductile material
after a large amount of processing or plastic deformation has taken place.
Define Ductility - CORRECT ANSWER: Ability of metal to withstand metal processing,
such as bending, hammering and rolling, without fracture/ability of metal to be formed
and permanently retain that shape
Define Elastic deformation - CORRECT ANSWER: Ability of a metal to be temporarily
deformed under load or stress, but demonstrates complete memory once load is
removed.
Define Fatigue resistance - CORRECT ANSWER: Ability to withstand cyclic loading
, Define Malleability - CORRECT ANSWER: Ability of a metal to be worked, hammered or
shaped without breaking
Define Plastic deformation - CORRECT ANSWER: Ability of metal to be manipulated
and changed in shape. While deformation is often considered a negative term, in this
case it refers to the reshaping of the metal into a desired product.
Define Strain - CORRECT ANSWER: A ratio measurement of the difference between a
metals length under load to its length with no load
Define Strength - CORRECT ANSWER: Ability of metal to withstand load
Define Stress - CORRECT ANSWER: Measurement of intensity of a loading force
Define Toughness - CORRECT ANSWER: Ability of metal to withstand shock loading
Define Yield strength - CORRECT ANSWER: Ability of metal to withstand gradual
progressive force without permanent deformation
Describe a BOTTOMING tap. - CORRECT ANSWER: Used to thread a blind hole.
Describe a PLUG tap. - CORRECT ANSWER: Thinker, harder material
Describe a TAPER tap. - CORRECT ANSWER: Thin soft material
For harder materials what type of drill point angle should you use? - CORRECT
ANSWER: Larger point angle.
Questions with 100% Verified Correct Answers
Guaranteed A+
Chemical notation for plaster? - CORRECT ANSWER: 2CaSO4H2O
Define Brittle failure - CORRECT ANSWER: Metal permanently and suddenly deforms,
fracturing or breaking apart
Define Brittleness - CORRECT ANSWER: Inability of a metal to withstand SHOCK
LOADING - deforms with a sudden, sharp application of force
Define Corrosion resistance - CORRECT ANSWER: ability of a metal to resist chemical
degradation
Define Ductile fracture - CORRECT ANSWER: Failure or fracture of a ductile material
after a large amount of processing or plastic deformation has taken place.
Define Ductility - CORRECT ANSWER: Ability of metal to withstand metal processing,
such as bending, hammering and rolling, without fracture/ability of metal to be formed
and permanently retain that shape
Define Elastic deformation - CORRECT ANSWER: Ability of a metal to be temporarily
deformed under load or stress, but demonstrates complete memory once load is
removed.
Define Fatigue resistance - CORRECT ANSWER: Ability to withstand cyclic loading
, Define Malleability - CORRECT ANSWER: Ability of a metal to be worked, hammered or
shaped without breaking
Define Plastic deformation - CORRECT ANSWER: Ability of metal to be manipulated
and changed in shape. While deformation is often considered a negative term, in this
case it refers to the reshaping of the metal into a desired product.
Define Strain - CORRECT ANSWER: A ratio measurement of the difference between a
metals length under load to its length with no load
Define Strength - CORRECT ANSWER: Ability of metal to withstand load
Define Stress - CORRECT ANSWER: Measurement of intensity of a loading force
Define Toughness - CORRECT ANSWER: Ability of metal to withstand shock loading
Define Yield strength - CORRECT ANSWER: Ability of metal to withstand gradual
progressive force without permanent deformation
Describe a BOTTOMING tap. - CORRECT ANSWER: Used to thread a blind hole.
Describe a PLUG tap. - CORRECT ANSWER: Thinker, harder material
Describe a TAPER tap. - CORRECT ANSWER: Thin soft material
For harder materials what type of drill point angle should you use? - CORRECT
ANSWER: Larger point angle.
