Related Questions

Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
During hot working of metals
A Porosity of the metal is largely eliminated
B Grain structure of the metal is refined
C Mechanical properties are improved due to refinement of grains
D All of the above
During hot working of metals,
A Porosity of the metal is largely eliminated
B Grain structure of the metal is refined
C Mechanical properties are improved due of refinement of grains
D All of the above
The hot working of metals is carried out
A At the recrystallisation temperature
B Below the recrystallisation temperature
C Above the recrystallisation temperature
D At any temperature
In cold working of metal as compared to its hot working
A Cracks and blow holes are eliminated
B Ductility and impact strength improves
C Appreciable strain hardening is produced
D Yield stress, hardness and fatigue strength is not at all affected
Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
A Slip
B Fracture
C Winning
D Dislocation
at the wholesale store you can buy an 8-pack of hot dogs for $ 1.55 a 20 pack for $ 3.05 and a 250 pack for $ 22.95 . what is the greatest number of hot dogs you can buy at this store with $ 200?
A 1108
B 2108
C 2100
D 2179
Which of the following metals does NOT react with cold or hot water?
A Aluminium
B Potassium
C Sodium
D Calcium
Which of the following metals can not be hot worked at room temperature?
A Zinc
B Nickel
C Lead
D Tin
Which of the following metals forms an amalgam with other metals?
A Tin
B Mercury
C Lead
D Zinc

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