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Engineering :: Production Engineering

241.  The bonding of a rubber sheet with a metal is done by
A. Welding B. High frequency dielectric heating
C. Induction welding D. Melting rubber in metal
E. Adhesive bonding    
242.  The surface roughness on a drawing is represented by
A. Circle B. Square
C. Zig-zag lines D. Triangle
E. Curve    
243.  During continuous chip formation the maximum heat is taken away by
A. Tool B. Chip
C. Coolant D. Work piece
E. Depends on velocity of cutting    
244.  In centreless grinding the regulating wheel is inclined at an angle
A. 1 - 8? B. 9-15?
C. 15 - 18? D. 12 - 24?
E. 25 - 35?    
245.  The surface speed of regulating wheel in case of centreless grinding is
A. 15 - 75 M/min B. 100 - 500 M/min
C. 500 - 800 M/min D. 1000 - 1500 M/min
E. 1500 - 1800 M/min    
246.  The surface speed of grinding wheel in case of centreless grinding is
A. 15 - 75 M/min B. 100 - 500 M/min
C. 500 - 800 M/min D. 1000 - 1500 M/min
E. 1500 - 1800 M/min    
247.  Ball bearing races are
A. Turned B. Ground
C. Nickel plated D. Buffed
E. Lapped    
248.  A point angle of 135 - 150? on twist drills is used for drilling
A. Mild steel B. Cast iron
C. Bakelite D. Plastics
E. Hard steels and nickel alloys    
249.  Shear angle varies with
A. Cutting speed B. Feed
C. Depth of cut D. Material of tool
E. Work piece materials and tool geometry    
250.  In Rockwell test for hardness on B scale
A. A steel ball is used B. A diamond cone is used
C. A steel hammer is used D. A plastic hammer is used
E. A mechanite ball is used    

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