| Configuration | Type of joints | ||
|---|---|---|---|
| P | Cartesian | 1 | One prismatic and two rotary |
| Q | Cylindrical | 2 | Three rotary |
| R | Spherical | 3 | Two prismatic and one rotary |
| S | Articulated | 4 | Three prismatic |
| List - I Location of Joint | List – II Type of Joint | ||
| A. | Joint between humerus and pectoral girdle | i. | Gliding joint |
| B. | Knee joint | ii. | Ball and Socket joint |
| C. | Joint between atlas and axis | iii. | Hinge joint |
| D. | Joint between carpals | iv. | Pivot joint |
List I | List II | ||
|---|---|---|---|
| A | EFibrous joints | I | Adjacent vertebrae, limited movement |
| B | Cartilaginous joints | II | Humerus and Pectoral girdle, rotational movement |
| C | Hinge joints | III | Skull, don’t allow any movement |
| D | Ball and socket joints | IV | Knee, help in locomotion |
A through hole of 10 mm diameter is to be drilled in a mild steel plate of 30 mm thickness. The selected spindle speed and feed for drilling hole are 600 revolutions per minute (RPM) and 0.3 mm/rev, respectively. Take initial approach and breakthrough distances as 3 mm each. The total time (in minute) for drilling one hole is ______. (Rounded off to two decimal places)
In a cold rolling process without front and back tensions, the required minimum coefficient of friction is 0.04. Assume large rolls. If the draft is doubled and roll diameters are halved, then the required minimum coefficient of friction is ___________. (Rounded off to two decimal places)