# Fluid Mechanics & Thermal Sciences [GATE (Graduate Aptitude Test in Engineering) Mechanical Engineering]: Questions 41 - 44 of 77

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## Question 41

Fluid Mechanics & Thermal Sciences
Bernoulli's Equation

Appeared in Year: 2020

### Question

Consider a flow through a nozzle, as shown in the figure below.

The air flow is steady, incompressible and inviscid. The density of air is 1.23 kg/. The pressure difference, is ________ kPa (round off to 2 decimal places) .

## Question 42

Fluid Mechanics & Thermal Sciences
Vapour Refrigeration Cycle

Appeared in Year: 2021

### Question

MCQ▾

Ambient pressure, temperature and relative humidity at a location are 101 kPa and 300 K and 60 % respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is … g/kg of dray air. (February Shift 2)

### Choices

Choice (4)Response

a.

21.4

b.

21.9

c.

13.6

d.

35.1

## Question 43

Fluid Mechanics & Thermal Sciences
Buoyancy

Appeared in Year: 2019

### Question

A cube of side 100 mm is placed at the bottom of an empty container on one of its faces. The density of the cube is 800 kg/, Liquid of density 1000 kg/ is now poured into the container. The minimum height to which the liquid needs to be poured into the container for the cube to just lift up is ________ mm.

## Question 44

Fluid Mechanics & Thermal Sciences
Fluid Properties

Appeared in Year: 2019