Related Questions

No cutting fluid is normally used, while machining
A Cast iron
B Aluminium
C Mild steel
D Stainless steel
In machining metal, cutting force at the cutting edge is measured by a
A Wattmeter
B Dynamometer
C Hydrometer
D Pyrometer
The cutting fluid mostly used for machining steel is
A Water
B Soluble oil
C Dry
D Heavy oils
The cutting fluid mostly used for machining alloy steels is
A Water
B Soluble oil
C Dry
D Sulphurised mineral oil
Turning/machining of __________ usually does not require any cutting fluid.
A Cast iron
B Stainless steel
C Mild steel
D Copper
The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.
A 0
B 100
C 50
D None of these
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called
A Humidity ratio
B Relative humidity
C Absolute humidity
D Degree of saturation
The cutting speed is maximum while machining _________ with a high speed steel tool.
A Cast iron
B Mild steel
C Brass
D Aluminium
The cutting speed is minimum while machining _________ with a high speed steel tool.
A Cast iron
B Mild steel
C Brass
D Aluminium
In compressed air tunnelling, the volume of free air provided is
A 6 m3 per second per m2 of face area
B 6 m3 per minute per m2 of face area
C 20 m3 per minute per m2 of face area
D 6 m3 per hour per m2 of face area

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