A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2 mm depth by a cutter of 10 mm diameter between points (0,0) and (100,100) on the XY plane (dimensions in mm). The feed rate used for milling is 50 mm/min, milling time for the slot (in seconds) is

Manufacturing And Production Technology
A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2 mm depth by a cutter of 10 mm diameter between points (0,0) and (100,100) on the XY plane (dimensions in mm). The feed rate used for milling is 50 mm/min, milling time for the slot (in seconds) is

170

240

120

180

170

240

120

180

ANSWER DOWNLOAD EXAMIANS APP

Manufacturing And Production Technology
Volume of a cube of side ‘l’ and volume of a sphere of radius ‘r’ are equal. Both the cube and the sphere are solid and of same material. They are being cast. The ratio of the solidification time of the cube to the same of the sphere is

(4π/6)² × (r/l)³

(4π/6)³ × (r/l)⁶

(4π/6) × (r/l)²

(4π/6)² × (r/l)⁴

(4π/6)² × (r/l)³

(4π/6)³ × (r/l)⁶

(4π/6) × (r/l)²

(4π/6)² × (r/l)⁴

ANSWER DOWNLOAD EXAMIANS APP

Manufacturing And Production Technology
The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel)

πdn cosα

πdn

πd

πdn sinα

πdn cosα

πdn

πd

πdn sinα

ANSWER DOWNLOAD EXAMIANS APP

Manufacturing And Production Technology
Hardness of green sand mould increases with

Increase in moisture content beyond 6 percent

Increase in permeability

Increase in both moisture content and permeability

Decrease in permeability

Increase in moisture content beyond 6 percent

Increase in permeability

Increase in both moisture content and permeability

Decrease in permeability

ANSWER DOWNLOAD EXAMIANS APP

Manufacturing And Production Technology
The angle between the lathe centres is

45°

60°

30°

90°

45°

60°

30°

90°

ANSWER DOWNLOAD EXAMIANS APP

Manufacturing And Production Technology
Fixtures are used

For holding and guiding the tool in drilling, reaming or tapping operations

None of these

For holding the work in milling, grinding, planing or turning operations

To check the accuracy of workpiece

For holding and guiding the tool in drilling, reaming or tapping operations

None of these

For holding the work in milling, grinding, planing or turning operations

To check the accuracy of workpiece

ANSWER DOWNLOAD EXAMIANS APP

Manufacturing And Production Technology

Manufacturing And Production Technology Volume of a cube of side ‘l’ and volume of a sphere of radius ‘r’ are equal. Both the cube and the sphere are solid and of same material. They are being cast. The ratio of the solidification time of the cube to the same of the sphere is

Manufacturing And Production Technology The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel)

Manufacturing And Production Technology Hardness of green sand mould increases with

Manufacturing And Production Technology The angle between the lathe centres is

Manufacturing And Production Technology Fixtures are used

Manufacturing And Production Technology
Volume of a cube of side ‘l’ and volume of a sphere of radius ‘r’ are equal. Both the cube and the sphere are solid and of same material. They are being cast. The ratio of the solidification time of the cube to the same of the sphere is

Manufacturing And Production Technology
The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions per minute, and α = Angle of inclination of wheel)

Manufacturing And Production Technology
Hardness of green sand mould increases with

Manufacturing And Production Technology
The angle between the lathe centres is

Manufacturing And Production Technology
Fixtures are used