Related Questions

If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be
A 10 mm/m
B 16 mm/m
C 20 mm/m
D 26 mm/m
Shrinkage allowance on pattern is provided to compensate for shrinkage when
A The temperature of liquid metal drops from pouring to freezing temperature
B The metal changes from liquid to solid state at freezing temperature
C The temperature of solid phase drops from freezing to room temperature
D The temperature of metal drops from pouring to room temperature
Shrinkage allowance on pattern is provided to compensate for shrinkage when the
A Metal changes from liquid state to solid state at freezing temperature
B Solid phase temperature drops from freezing temperature to the room temperature
C Liquid metal temperature drops from pouring temperature to room temperature
D Liquid metal temperature drops from pouring temperature to freezing temperature
রেওয়ামিলে দেনাদার ৫২,০০০ টাকা, লিখিত অনাদারি পাওনা ২,০০০ টাকা এবং অলিখিত অন্যদায়ি পাওনা ২,০০০ টাকা। যদি দেনাদারের ওপর ৫% সঞ্চিতি রাখা হয় এবং অনাদায়ি পাওনা সঞ্চিতির ক্রেডিট ব্যালেন্স ১,০০০ টাকা হয়, তাহলে চলতি বছরে অন্যনায়ি পাওনা সঞ্চিতি কত রাখতে হবে? (In trial balance, account receivable is of Tk. 52,000 recorded bad debt of Tk.2,000 and unrecorded bad debt of Tk. 2,000. What is the amount of allowance for doubtful accounts kept in current year if the allowance is 5% on accounts receivable and credit balance in allowance for doubtful accounts currently is of Tk. 1,000 )
A ২,৫০০ টাকা (Tk. 2,500)
B ১,০০০ টাকা (Tk. 1,000)
C ২,৪০০ টাকা (Tk. 2,400)
D 1,500 টাকা (Tk. 1,500)
When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron.
A Cementite
B Free graphite
C Both A and B
D None of these
White cast iron as compared to grey cast iron is
A More durable
B Very brittle
C Very hard
D All of the above
When carbon in the cast iron is principally in the form of graphite, the cast iron will be of
A Brown colour
B Yellow colour
C White colour
D Grey colour
Nodular cast iron is produced by adding ________ to the molten cast iron.
A Nickel
B Chromium
C Copper
D Magnesium
An important property of malleable cast iron in comparison to grey cast iron is the high
A Compressive strength
B Ductility
C Carbon content
D Hardness
__________ of grey cast iron produces white cast iron.
A Tempering
B Rapid heating
C Rapid cooling
D Slow cooling

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