Quiz
Mechanical Testing
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Perguntas do quiz (12)
1Stress at which "permanent set"is 1st recorded, when bar is unloaded is known as:
- APermanent Set
- BStrain
- CElastic limit
- DProportional unit
2Tensile tests use special machines to exert force. Two general types that provide the force:
- AHydraulic / Mechanical
- BPull and Push
- CHydraulic Pull and Push
3Rockwell C used which major load?
- A130 kg
- B100 kg
- C140 kg
- D150 kg
4Thickness when making hardness should be
- A8x depth of impression
- B5x depth of impression
- C15x depth of impression
- D10x depth of impression
5What is Approx. diameter for tensile specimen used for All-Weld metal tests?
- A20 mm
- B1 in
- C5 mm
- D10 mm
- E3.8 in.
6High hardness value related to:
- Ahigh strength / low ductility
- Bhigh percentage of alpha ferrite constituent
- Clow strength / high ductility
- Dhigh strength / high ductility
- Eincreased degree of weldability
7NDTT determined from drop weight refers to
- Alowest temp. which Xtl fracture surface is observed
- BCharpy transition temperature
- Cmin. temp. which specimen breaks
- Dupper shelf
- Emax. temp. at which specimen breaks
830m long cable with strain of 0.25%
- A150 mm
- B6 mm
- C75 mm
- D1 m
- E7.5 m
9Impact test measures
- AHardness of material
- BUTS of material
- CAbility of material to stop energy
- DEnergy reqd to break specimen
- ELoad reqd to break specimen
10Guided root bend test on weld best reveals
- Aweld ductility by measuring difference in distance between gauge marks
- Bexcessive reinforcement
- Cintegrity of face weld
- Dlack of penetration of fusion
- EHAZ Properties
11Charpy test values
- AAre a measure of ductility
- BAre a measure of tensile strength
- CCan be applied directly to real structure
- DUsed for qualification and quality control checks
- EProvide same results as drop weight tests
12Conducting a tensile test, rate of loading up to the yield point is limited to some value, why?
- Afast load rate might increase yield stress
- Bfast load rate might lower the UTS
- Cprevent the specimen breaking before reaching UTS
- Dallow time for reading to be taken
- Eallow time for hydrogen removal
Informações
- Descrição
- CWB Level 2 (Flash Cards / Quizes) Quiz sobre Mechanical Testing, criado por Grant Aden em 12-07-2015.
- Autor
- Grant Aden
- Idioma
- English
- Visualizações
- 7
- Etiquetas
- Avaliação
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