If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets is
0.20
0.30
0.50
0.60
- The angle between the shear plane and __________ is called shear angle.
- The cutting speed of a drill depends upon the
- In determining the various forces on the chip, Merchant assumed that the
- Continuous chips with built up edge are formed during machining of
- The hole to be drilled for tapping is _________ the outside diameter of the thread on the tap.
- Chemical milling operation is performed
- The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive…
- The size of abrasive grain required in a grinding wheel depends upon the
- The factor considered for evaluation of machinability is
- The angle between the lathe centres is
- When the tool moves parallel to the lathe axis, the movement is termed as
- Fixtures are used
- During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion…
- For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature…
- Small nose radius
- In a shaper, the metal is removed during
- Soft materials can not be economically ground due to
- Stellite preserves hardness upto a temperature of
- Cutting fluids are used to
- A twist drill is a
- The cutting speed is maximum while machining __________ with a high speed steel tool.
- The operation of smoothing and squaring the surface around a hole is known as
- A broach has
- In which of the following machine, the work rotates and the tool is stationary?
- Volume of a cube of side l and volume of a sphere of radius r are equal. Both the cube and the sphere…
- The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter…
- In order to achieve a specific surface finish in single point turning, the most important factor to…
- A lathe with four steps on the cone pulley and with back-gears will have
- A feed gear box for a screw cutting lathe is designed on the basis of
- In centreless grinding, work place centre will be