The Bernoulli's equation states that For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another.

The Bernoulli's equation is applied to venturimeter, orifice meter and pitot tube.

Hence Bernoulli's theorem applies to incompressible, steady and non-viscous flow.

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**3) **Bernoulli's theorem applies to which type of flow

**Answer is:**

## all of these combined

**Explanation:**

**Related ISRO Technical Assistant Mechanical Question Paper - 2016 with Answer Key**

**Answer is:**

### pd/4t

**Explanation:**

Tensile stress in thin spherical shell subjected to internal pressure is pd/4t

**Answer is:**

### vapour

**Explanation:**

Simply defined, cavitation is the formation of bubbles or cavities in liquid, developed in areas of relatively low pressure around an impeller. The imploding or collapsing of these bubbles trigger intense shockwaves inside the pump, causing significant damage to the impeller and/or the pump housing.

Hence cavitation in a pump is associated with vapour pressure.

**Answer is:**

### Otto cycle

**Explanation:**

Otto cycle is also known as constant volume cycle, as the heat is received and rejected at a constant volume. Otto cycle is used in gas, petrol and many of the oil engines. The petrol engine works on Otto cycle.

The ideal Otto cycle consists of two constant volume and two reversible adiabatic or isentropic processes.

Otto cycle is taken as a standard of comparison for internal combustion engines. For the purpose of comparison with other cycles, the air is assumed to be the working substance.

**Answer is:**

### 150 kPa (g)

**Explanation:**

The pressure increase from the free surface can be calculated with the formula for the weight of the water column divided by the cross sectional area, that is d*g*h, where

d = 1 000 kg/m^3 is water density,

g = 9.8 m/s^2 is gravity and

h = 15 m is the depth.

Then we get 147000 Pa = 147 kPa = 1.47 bar.