Related Questions

Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.
A 1.5-2
B 3.5-4.5
C 7-9
D 12-14
Presence of iron and manganese in water causes
A Reduction in its dissolved oxygen content
B Discoloration of bathroom fixtures
C Temporary hardness
D None of these
Presence of manganese in alloy steel improves its
A Corrosion resistance
B Cutting ability
C Abrasion resistance & toughness
D Elasticity & creep resistance
Film condensation is promoted on a/an __________ surface.
A Oily
B Coated
C Clean & smooth
D Dirty
Dropwise condensation is promoted on a/an __________ surface.
A Glazed
B Oily
C Coated
D Smooth
Iron and manganese present as pollutants in water cannot be removed by________
A Oxidation followed by settling and filtration
B Chlorination
C Ion exchange process
D Lime soda process or manganese zeolite process
In a group of 60 probationary officers, 40% of them were promoted, 12 of them were terminated and rest to them were placed on probation for the second time. What percent of the probationary officers were placed on probation for the second time ?
A 60
B 50
C 40
D 30
The young man was quickly promoted when his employers saw how ___ he was.
A indigent
B indifferent
C assiduous
D lethargic
Which of the following banks promoted the programme of 'Green Banking' in Bangladesh?
A HSBC Bank Ltd.
B Bangladesh Bank
C Janata Bank
D Grameen Bank
The young man was quickly promoted when his employers saw how __ he was .
A Indigent
B Indifferent
C Assiduous
D Lethargic

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