Related Questions

Hot extrusion process is not used for making
A Cast iron pipe for domestic water supply
B Aluminium curtain rods
C Stainless steel tubes used in furnitures
D Any of these
Aluminium bronze contains aluminium and copper in the ratio of
A 50 : 50
B 40 : 60
C 60 : 40
D 10 : 90
The machinability of aluminium increases when _________ is added to aluminium.
A Copper
B Magnesium
C Silicon
D Lead and bismuth
Collapsible tubes for tooth paste are produced by __________ extrusion.
A Direct
B Indirect
C Impact
D None of these
Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.
A Copper
B Steel
C Aluminium
D Brass
In case of parallel flow heat exchanger, the lowest temperature theoretically attainable by the hot fluid is __________ the outlet temperature of the cold fluid.
A Equal to
B More than
C Less than
D Either more or less than (depending upon the fluid)
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
The Zaskar range, the Ladakh range, the Kailas and the Karakoram Range are the main ranges of:
A The Western Ghat
B The Aravali
C The Himalayan system
D The Eastern Ghat
Extrusion
A Is extensively used for making bolts and nuts
B Is used for reducing the diameter of round bars and tubes by rotating dies which open and close rapidly on the work
C Is used to improve fatigue resistance of the metal by setting up compressive stresses in its surface
D Consists of pressing the metal inside a chamber to force it out by high pressure through an orifice which is shaped to provide the desired form of the finished part
In extrusion of metals, which of the following statement is true ?
A Speed of the extruded material is same as that of ram speed
B Redundant work is a function of the die angle
C Relative motion between the billet surface and the container wall is always present
D Hollow ram is used for indirect extrusion

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