Related Questions

The casting method adopted for ornaments and toys of nonferrous alloys, is
A Permanent mould casting
B Slush casting
C Die casting
D Centrifugal casting
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
This is used in applications for nonferrous construction:
A Copper tubing
B Steel pipe
C PVC pipe
D Iron tubing
The trade name of a nonferrous cast alloy composed of cobalt, chromium and tungsten is called
A Ceramic
B Stellite
C Diamond
D Cemented carbide
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
Improper usages of words. choose the option which indicates the sentences in which the underlined word(s) has/have been used incorrectly. i. You need to hear both sides of the story before "making up" your mind. ii. We are "making up" more beds as some unexpected guests have come. iii. The curtains are "make up" of Indian silk.
A i only
B ii only
C iii only
D ii and iii only
In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
A High metal removal rate
B Dry machining
C Use of soft cutting tool
D Surface finish
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
A Equal to
B Less than
C More than
D None of these
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
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

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