# Tooth interference in an external involute spur gear pair can be reduced by

1.  Decreasing center distance between gear pair

2.  Decreasing module

3.  Decreasing pressure angle

4.  Increasing number of gear teeth

4

Increasing number of gear teeth

Explanation :
No Explanation available for this question

# For the stability of a floating body, under the influence of gravity alone, which of the following is TRUE

1.  Metacentre should be below centre of gravity

2.  Metacentre should be above centre of gravity

3.  Metacentre and centre of gravity must lie on the same horizontal line

4.  Metacentre and centre of gravity must lie on the same vertical line

4

Metacentre should be above centre of gravity

Explanation :
No Explanation available for this question

# The maximum velocity of a one-dimensional incompressible fully developed viscous flow, between two fixed parallel plates, is 6ms-1. The mean velocity (in ms-1) of the flow is

1.  2

2.  3

3.  4

4.  5

4

4

Explanation :
No Explanation available for this question

# A phenomenon is modeled using n dimensional variables with k primary dimensions. The number of non-dimensional variables is

1.  k

2.  n

3.  n-k

4.  n+k

4

n-k

Explanation :
No Explanation available for this question

# A turbo-charged four-stroke direct injection diesel engine has a displacement volume of 0.0259m3 (25.9litres).The engine has an output of 950kW at 2200rpm. The mean effective pressure in MPa is closest

1.  2

2.  1

3.  0.2

4.   0.1

4

2

Explanation :
No Explanation available for this question

# One kilogram of water at room temperature is brought into contact with a high temperature thermal reservoir. The entropy change of the universe is

1.  equal to entropy change of the reservoir

2.  equal to entropy change of water

3.  equal to zero

4.  always positive

4

always positive

Explanation :
No Explanation available for this question

# A hydraulic turbine develops 1000kW power for a head of 40m. If the head is reduced to 20m, the power developed (in kW) is

1.  177

2.  354

3.  500

4.  707

4

354

Explanation :
No Explanation available for this question

# The material property which depends only on the basic crystal structure is

1.  fatigue strength

2.  work hardening

3.  fracture strength

4.   elastic constant

4

fracture strength

Explanation :
No Explanation available for this question

# In a gating system, the ratio 1:2:4 represents

1.  sprue base area: runner area: ingate area

2.  pouring basin area: ingate area: runner area

3.  sprue base area: ingate area: casting area

4.  runner area: ingate area: casting area

4

sprue base area: runner area: ingate area

Explanation :
No Explanation available for this question

# A shaft has a dimension, ^35-0.025. The respective values of fundamental deviation and tolerance are

1.   -0.025, ± 0.008

2.  -0.025, 0.016

3.  -0.009, ±0.008

4.   -0.009, 0.016

4