Production Engineering Questions

• The tool life is said to be over if
• Which of the following statement is correct in regard to centreless grinding?
• The specific cutting energy used for establishing the machinability of the metal depends upon its
• The relief or clearance at the cutting edge of a flat drill varies from
• When the shear angle is large
• In drilling aluminium, a drill with
• Internal or external threads of different pitches can be produced by
• In drilling softer materials, the cutting speed is __________ as compared to harder materials.
• Gear finishing operation is called
• In a centre lathe, the cutting tool is fed in __________ with reference to the lathe axis.
• Broaching is applied for machining
• In electro-discharge machining, the tool is connected to cathode.
• In machining cast iron, no cutting fluid is required.
• In electro-chemical machining, the gap between the tool and work is kept as
• In transverse grinding
• The process of improving the cutting action of the grinding wheel is called
• In machining metals, surface roughness is due to
• If the grain size is __________ the tool life is better.
• A lathe with four steps on the cone pulley and with backgears will have
• The usual value of the helix angle of a drill is