# A disk clutch is required to transmit 5 kW at 2000 rpm. The disk has a friction lining with coefficient of friction equal to 0.25. bore radius of friction lining is equal to 25 mm. assume uniform contact pressure of 1 MPa. The value of outside radius of the friction lining is:

1.  39.4 mm

2.  49.5 mm

3.  97.9 mm

4.  142.9 mm

4

39.4 mm

Explanation :
No Explanation available for this question

# Twenty degree full depth involute profiled 19-tooth pinion and 37-tooth gear are in mesh. If the module is 5 mm, the center distance between the gear pair will be

1.  140 mm

2.  150 mm

3.  280 mm

4.  300 mm

4

140 mm

Explanation :
No Explanation available for this question

# A cylindrical shaft is subjected to an alternating stress of 100 MPa. Fatigue strength to sustain 1000 cycle is 490 MPa. If the corrected endurance strength is 70 MPa, estimated shaft life will be

1.  1071 cycles

2.  15000 cycles

3.  281914 cycles

4.  928643 cycles

4

281914 cycles

Explanation :
No Explanation available for this question

# According to Von-Mises' distortion energy theory, the distortion energy under three dimensional stress state is represented by

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# A steel bar of 40 mm x 40 mm square cross-section is subjected to an axial compressive load of 200 kN. If the length of the bar is 2m and E = 200 GPa, the elongation of the bar will be:

1.  1.25 mm

2.   2.70 mm

3.  4.05 mm

4.  5.40 mm

4

1.25 mm

Explanation :
No Explanation available for this question

# If Cf is the coefficient of speed fluctuation of a flywheel then the ratio of

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# A bar having a cross-sectional area of 700 mm2 is subjected to axial loads at the positions indicated. The value of stress in the segment QR is:

1.  40 MPa

2.  50 MPa

3.  70 MPa

4.  120 MPa

4

40 MPa

Explanation :
No Explanation available for this question

# If a system is in equilibrium and the position of the system depends upon many independent variables, the principle of virtual work states that the partial derivatives of its total potential energy with respect to each of the independent variable must be

1.  -1.0

2.  0

3.  1.0

4.  ∞

4

0

Explanation :
No Explanation available for this question

# If point A is in equilibrium under the action of the applied forces, the values of tensions TAB and TAC are respectively.

1.  520 N and 300 N

2.  300 N and 520 N

3.  450 N and 150 N

4.  150 N and 450 N

4

520 N and 300 N

Explanation :
No Explanation available for this question

# Match the items in columns I and II Column I Column II (P) Higher kinematic pair (1) Grubler's equation (Q) Lower kinematic pair (2) Line contact (R) Quick return mechanism (3) Euler's equation (S) Mobility of a linkage (4) Planer   (5) Shaper   (6) Surface contact

1.   P - 2         Q-6   R-4   S-3

2.   P - 6         Q-2   R-4   S-1

3.  P - 6         Q-2   R-5   S-3

4.    P - 2         Q-6   R-5   S-1

4