10) Countersinking is a process of a) Cutting threads in a Workpiece b) Making precise hole in a Workpiece c) Making shape for a Socket Flathead cap screw in a Workpiece d) Making shape for a Socket head cap screw in a Workpiece 11) What size drill is used to Ream ¼ inch hole? a) 0.250 b) 0.235 c) 0.248 d) 0.200 12) What size drill is used for ½ -13 tapped hole? a) 0.423 b) 0.485 c) 0.498 d) 0.312

Spinning at 10.0 revolutions per second (rev/s). The diameter of the electric drill bit is 4.00 mm. What is the linear speed of a point on the surface of the drill bit, in meters per second? Show computations a) 0.126 m/sec b) 0.105 m/sec c) 0.150 m/sec d) 0.160 m/sec

42) What are the names given to the three Taps used for Tapping Holes? a) Taper, Plug,Bottoming b) Taper, Fine, Course c) Fine,Course, Bottoming d) Top,Bottoming, Side 43) What does 16 represent for the Notation of 3/8-16UNC- 2A. a) Outside Diameter of a screw b) 16 Threads per Inch c) Fine Thread of the Screw d) Thread Tolerance 44) What does 3/8 represent for the Notation of 3/8-16 UNC- 2A a) Outside diameter of the Screw b) 16 Threads per Inch c) Fine Thread of the screw d) Thread Tolerance 45) Cutting Speed is ? a) The Peripheral distance travelled by The cutter b) The RPM of the Chuck c) The speed of the metal chips being cut d) The Feed Rate

29) What is the maximum depth of cut given on a Surface Grinder? a) 0.0020 b) 0.0005 c) 0.0200 d) 0.0220 30) One of the reason for not having a good surface finish from a surface grinder is: a) Depth of cut 0.0005 b) Depth of cut 0.0010 c) Wheel needs dressing d) None of the above 31) What size drill would you use before reaming a ½ inch hole? a) 15/32 b) 31/64 c) 32/64 d) 16/32 32) A Vernier Caliper can measure to the inch and in metric millimeters a) 0.001 and 0.02 respectively b) 0.002 and 0.001 respectively c) 0.0005 and 0.002 respectively d) None of the above part of an

17) The Feed Rate on a Conventional lathe is measured in a) Feet per minute b) Inches per Revolution c) Inches per minute d) Inches per tooth 18) From a feed and Speed chart we find that a single point lathe tool is given a cutting speed of 100 FPM and a feed per revolution 0.007.If the diameter of the Workpiece is 1.25 inches What is the correct RPM and Feed rate used on the Lathe? a) 320 RPM and 0.007 IPR b) 100 RPM and 7 IPM c) 3200RPM and 0.007 IPR d) 125 RPM and 0.007 IPR 19) To Fix a small bump left on the Face of a workpiece in a lathe a) Use a file b) Ignore it c) Adjust the tool on centre again 20) The best tool to use to Chamfer a hole is a a) Chamfer file b) Counterbore c) Countersink d) Reamer 01

1) How many Millimeters are in 23/64 (Go to the fifth decimal point) a) 9.13 mm b) 8.98 mm c) 7.47 mm d) 9.24 mm 2) When drilling for a ½" socket head Cap Screw, what size hole would you drill for a Counterbore? a) 0.500 b) 0.530 c) 0.480 d) 0.625 3) How many Inches are in 18 Millimeters a) 7.086 inches b) 0.7086 inches c) 0.079 inches d) 7.860 inches 4) What does 2A represent for 3/8-16 UNC-2A thread a) Outside Diameter of Screw b) 16 Threads per inch c) Fine Tread of a Screw d) Thread Tolerance

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Tooth breakage on gear is usually a A) A crack B) None of These C) A contact Stress  D) A Tensile fatigue

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