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Engineering :: Production Engineering

591.  Unequal lengths of lips of a twist drill are likely to result in
A. Elliptical hole B. Oversize hole
C. Low heat generation D. Smooth surface
E. Low power consumption    
592.  Tungsten carbide tipped drill bits are used
A. For slow drilling B. For smooth surface
C. For drilling without coolant D. For drilling on glass, ceramics, etc.
593.  Poor surface finish and fast wear of tool are the characteristics of
A. Discontinuous chips B. Continuous chips with built up edges
C. Continuous chips D. Inhomogencous chips
594.  Which strength is the major consideration, which of the following process should be favoured
A. Forging B. Sand casting
C. Die casting D. Hot rolling
E. Any of the above    
595.  Antioch is
A. An instrument for measurement of porosity of sand B. A hand tool used for repairing moulds
C. A process for making porous moulds D. A soft soldering process
E. A process for removal of excess solder from joints    
596.  In case of grey cast iron the volumetric shrinkage is around
A. 2% B. 10%
C. 15% D. 20%
E. 25%    
597.  Which of the following provides an additional projection on a pattern and also forms a seat to support and locate the core in the mould?
A. Head B. Print
C. Core print D. Mould print
E. Check    
598.  The main advantage of using synthetic sand in foundry is
A. It is less costly B. It can take any shape
C. It does not require moisture D. It is highly refractory
E. Its properties can be easily controlled    
599.  The moisture content of wood used for patterns should be
A. More than 25% B. More than 20%
C. Less than 15% D. 1%
E. Zero    
600.  Which property of sand is measured by a dilatometer?
A. Permeability B. Moisture content
C. Clay content D. Fineness
E. Hot strength    

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