Material Science Set 25

Electrical Engineering

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This set of Material Science Multiple Choice Questions & Answers (MCQs) focuses on Material Science Set 25

Q1 | cast iron, glass, concrete, bricks etc. shows               type of fracture
Q2 | mild steel, gold, silver, copper, aluminium, etc. shows type of fracture
Q3 | Cleavage fracture is the main characteristicsof                   
Q4 | cup and cone type fracture is the main characteristics of                   
Q5 |                      shows good behavious undertensile type of loading
Q6 |                      are not used under tensile typeloading
Q7 | A 40 cm long rod of diameter 0.5 cm is loaded with 5 kN weight. The engineering stress in the rod is Mpa
Q8 | a 40 cm long rod of diameter 0.3 cm is subjected to 2 kn load. If the diamter of rod is reduced to 0.25 cm, then enginerring strain in the rod is                       
Q9 | a 40 cm long rod of diameter 0.3 cm is subjected to 2 kN load. If the diameter of rod is reduced to 0.25 cm then true strain in rod is
Q10 | a 40 cm long rod of diameter 0.3 cm is subjected to 2 kN load. If the diameter of rod is reduced to 0.25 cm then true stressin rod is
Q11 | if engineering stress for a material is 250 Mpa and engineering strain is 0.2 , then true stress is                  
Q12 | if engineering stress for a material is 250 Mpa and engineering strain is 0.2 , then true strain is                  
Q13 | if yield trength of metal plate is σ under load P then the width of plate is . Take 't' as thickness of plate
Q14 | a copper of thickness 10 mm is subjected to a lod of 10000 N. if yield strength of copper is 150 then, the width of plate is                
Q15 | a nickel stell has engineeringnstress of 610 N/mm2 . The reduction in area of cross section at the fracture was 38 %. The true stress in the material is                          
Q16 | an aluminium tensile test specimen has reduction area of 44%. Its true strain is
Q17 | tensile test was conducted on a steel specimen of diameter 20 mm and gauge length 75 mm. the gauge length and diameter during fracture are 95 mm and 12 mm respectively. Its elongation is
Q18 | tensile test was conducted on a steel specimen of diameter 20 mm and gauge length 75 mm. the gauge length and diameter during fracture are 95 mm and 12 mm respectively. If load at upper yield point is 500 kg, the upper yield stress is
Q19 | tensile test was conducted on a steel specimen of diameter 20 mm and gauge length 75 mm. the gauge length and diameter during fracture are 95 mm and 12 mm respectively. If ultimate tensile load is 8000 kg, the UTS is                     
Q20 | an Aluminium plate of thickness 10 mm is subjected to a force 'F' . If yield strength of aluminium is 150 N/mm2 and width of plate is 60 mm, force F is kN
Q21 | a steel specimen during the test subjected to a stress of 300 N/mm2 and strain 1.5 x 10-3. the modulus of elasticity of steel is
Q22 | a concrete specimen of square cross section is subjected to a force of 100 kN. A side of square is 75 mm. if strain in concrete block is1.5 x 10-3, the value of youngs modulus forconcrete is                       
Q23 | a steel specimen is subjected to a stress of 300 Mpa. If E = 200 Gpa, modulus of resilience is                  
Q24 | if total amount of energy absorbed by a steel specimen is 5 N-m for a volume of 10 x 10-3 mm3, the modulus of toughness is                      N/mm2
Q25 | an aluminium specimen is subjected to a stress of 160 /mm2 and corressponding modulus of resilience is 0.128 Mpa.Youngs modulus for aluminium is             
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