Related Questions

The binding material used in cemented carbide tools is
A Tungsten
B Chromium
C Silicon
D Cobalt
High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
A 2 to 3 times lower
B 2 to 3 times higher
C 5 to 8 times higher
D 8 to 20 times higher
The tool made of cemented carbide wear out faster at
A Slow speeds
B Medium speeds
C Fast speeds
D Very fast speeds
Which of the following is the most wear resistant grade of carbide used for the cutting tools?
A Aluminium carbide
B Tungsten carbide
C Nickel carbide
D Iron carbide
Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of
A 90% tungsten carbide and 10% cobalt
B 70% aluminium oxide & 30% silica
C 30% nickel, 15% chromium & 55% tungsten
D 65% tungsten & 35% zirconium
In 1995 a certain store had 1,800 tools in stock that had been purchased for Tk. 30 each. If 1,000 of these tools were sold in 1995 for Tk. 40 each and the remaining 800 were sold in 1996 for Tk. 50 each, how much greater was the gross profit on the tools sold in 1996 than of 1995?
A Tk. 0
B Tk. 6,000
C Tk. 8,000
D Tk. 32,000
Carbide tipped tools usually have
A Negative rake angle
B Positive rake angle
C Any rake angle
D No rake angle
Chaklapunki and Lalmai prehistoric locations had no stone. Instead, archaeologists have found weapons and cutting tools made form stoned tree called:
A ferricreted wood
B crusted wood
C petrified wood
D carbonized wood
Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.
A Turning
B Dressing
C Forming
D Surface finishing
Which of the following is the binding material in cemented carbides?
A Cobalt
B Nickel
C Vanadium
D Iron

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