06. Flow of Fluid
Mechanical Properties of Fluids

143246 Two solids $P$ and $Q$ float in water. It is observed that $P$ floats with half of its volume immersed and $Q$ floats with $\frac{2^{\text {rd }}}{3}$ of its volume is immersed. The ratio of densities of $P$ and $Q$ is :

1 $\frac{4}{3}$
2 $\frac{3}{4}$
3 $\frac{2}{3}$
4 $\frac{3}{2}$
Mechanical Properties of Fluids

143247 Horizontal tube of non-uniform cross-section has radii of $0.1 \mathrm{~m}$ and $0.05 \mathrm{~m}$ respectively at $M$ and $\mathrm{N}$. For a streamline flow of liquid the rate of liquid flow is :

1 changing continuously with time
2 greater at $\mathrm{M}$ than at $\mathrm{N}$
3 greater at $\mathrm{N}$ than at $\mathrm{M}$
4 same at $\mathrm{M}$ and $\mathrm{N}$
Mechanical Properties of Fluids

143248 There are two identical small holes on the opposite sides of a tank containing a liquid. The tank is open at the top. The difference in height between the two holes is $h$. As the liquid comes out of the two holes, the tank will experience a net horizontal force proportional to

1 $\sqrt{\mathrm{h}}$
2 $\mathrm{h}$
3 $\mathrm{h}^{3 / 2}$
4 $\mathrm{h}^{2}$
Mechanical Properties of Fluids

143249 Water is falling on the blades of a turbine at a rate of $100 \mathrm{~kg} / \mathrm{s}$. If the height of the fall is 100 $\mathrm{m}$, the power transferred to the turbine will be approximately

1 $100 \mathrm{~kW}$
2 $10 \mathrm{~kW}$
3 $1 \mathrm{~kW}$
4 $100 \mathrm{~W}$
Mechanical Properties of Fluids

143251 A block of wood of side $40 \mathrm{~cm}$ floats in water in such a way that its lower face is $5 \mathrm{~cm}$ below the free surface of water. What is the weight of the block?

1 $64 \mathrm{~kg}$
2 $16 \mathrm{~kg}$
3 $8 \mathrm{~kg}$
4 cannot be determined as density of wood is not given
Mechanical Properties of Fluids

143246 Two solids $P$ and $Q$ float in water. It is observed that $P$ floats with half of its volume immersed and $Q$ floats with $\frac{2^{\text {rd }}}{3}$ of its volume is immersed. The ratio of densities of $P$ and $Q$ is :

1 $\frac{4}{3}$
2 $\frac{3}{4}$
3 $\frac{2}{3}$
4 $\frac{3}{2}$
Mechanical Properties of Fluids

143247 Horizontal tube of non-uniform cross-section has radii of $0.1 \mathrm{~m}$ and $0.05 \mathrm{~m}$ respectively at $M$ and $\mathrm{N}$. For a streamline flow of liquid the rate of liquid flow is :

1 changing continuously with time
2 greater at $\mathrm{M}$ than at $\mathrm{N}$
3 greater at $\mathrm{N}$ than at $\mathrm{M}$
4 same at $\mathrm{M}$ and $\mathrm{N}$
Mechanical Properties of Fluids

143248 There are two identical small holes on the opposite sides of a tank containing a liquid. The tank is open at the top. The difference in height between the two holes is $h$. As the liquid comes out of the two holes, the tank will experience a net horizontal force proportional to

1 $\sqrt{\mathrm{h}}$
2 $\mathrm{h}$
3 $\mathrm{h}^{3 / 2}$
4 $\mathrm{h}^{2}$
Mechanical Properties of Fluids

143249 Water is falling on the blades of a turbine at a rate of $100 \mathrm{~kg} / \mathrm{s}$. If the height of the fall is 100 $\mathrm{m}$, the power transferred to the turbine will be approximately

1 $100 \mathrm{~kW}$
2 $10 \mathrm{~kW}$
3 $1 \mathrm{~kW}$
4 $100 \mathrm{~W}$
Mechanical Properties of Fluids

143251 A block of wood of side $40 \mathrm{~cm}$ floats in water in such a way that its lower face is $5 \mathrm{~cm}$ below the free surface of water. What is the weight of the block?

1 $64 \mathrm{~kg}$
2 $16 \mathrm{~kg}$
3 $8 \mathrm{~kg}$
4 cannot be determined as density of wood is not given
Mechanical Properties of Fluids

143246 Two solids $P$ and $Q$ float in water. It is observed that $P$ floats with half of its volume immersed and $Q$ floats with $\frac{2^{\text {rd }}}{3}$ of its volume is immersed. The ratio of densities of $P$ and $Q$ is :

1 $\frac{4}{3}$
2 $\frac{3}{4}$
3 $\frac{2}{3}$
4 $\frac{3}{2}$
Mechanical Properties of Fluids

143247 Horizontal tube of non-uniform cross-section has radii of $0.1 \mathrm{~m}$ and $0.05 \mathrm{~m}$ respectively at $M$ and $\mathrm{N}$. For a streamline flow of liquid the rate of liquid flow is :

1 changing continuously with time
2 greater at $\mathrm{M}$ than at $\mathrm{N}$
3 greater at $\mathrm{N}$ than at $\mathrm{M}$
4 same at $\mathrm{M}$ and $\mathrm{N}$
Mechanical Properties of Fluids

143248 There are two identical small holes on the opposite sides of a tank containing a liquid. The tank is open at the top. The difference in height between the two holes is $h$. As the liquid comes out of the two holes, the tank will experience a net horizontal force proportional to

1 $\sqrt{\mathrm{h}}$
2 $\mathrm{h}$
3 $\mathrm{h}^{3 / 2}$
4 $\mathrm{h}^{2}$
Mechanical Properties of Fluids

143249 Water is falling on the blades of a turbine at a rate of $100 \mathrm{~kg} / \mathrm{s}$. If the height of the fall is 100 $\mathrm{m}$, the power transferred to the turbine will be approximately

1 $100 \mathrm{~kW}$
2 $10 \mathrm{~kW}$
3 $1 \mathrm{~kW}$
4 $100 \mathrm{~W}$
Mechanical Properties of Fluids

143251 A block of wood of side $40 \mathrm{~cm}$ floats in water in such a way that its lower face is $5 \mathrm{~cm}$ below the free surface of water. What is the weight of the block?

1 $64 \mathrm{~kg}$
2 $16 \mathrm{~kg}$
3 $8 \mathrm{~kg}$
4 cannot be determined as density of wood is not given
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Mechanical Properties of Fluids

143246 Two solids $P$ and $Q$ float in water. It is observed that $P$ floats with half of its volume immersed and $Q$ floats with $\frac{2^{\text {rd }}}{3}$ of its volume is immersed. The ratio of densities of $P$ and $Q$ is :

1 $\frac{4}{3}$
2 $\frac{3}{4}$
3 $\frac{2}{3}$
4 $\frac{3}{2}$
Mechanical Properties of Fluids

143247 Horizontal tube of non-uniform cross-section has radii of $0.1 \mathrm{~m}$ and $0.05 \mathrm{~m}$ respectively at $M$ and $\mathrm{N}$. For a streamline flow of liquid the rate of liquid flow is :

1 changing continuously with time
2 greater at $\mathrm{M}$ than at $\mathrm{N}$
3 greater at $\mathrm{N}$ than at $\mathrm{M}$
4 same at $\mathrm{M}$ and $\mathrm{N}$
Mechanical Properties of Fluids

143248 There are two identical small holes on the opposite sides of a tank containing a liquid. The tank is open at the top. The difference in height between the two holes is $h$. As the liquid comes out of the two holes, the tank will experience a net horizontal force proportional to

1 $\sqrt{\mathrm{h}}$
2 $\mathrm{h}$
3 $\mathrm{h}^{3 / 2}$
4 $\mathrm{h}^{2}$
Mechanical Properties of Fluids

143249 Water is falling on the blades of a turbine at a rate of $100 \mathrm{~kg} / \mathrm{s}$. If the height of the fall is 100 $\mathrm{m}$, the power transferred to the turbine will be approximately

1 $100 \mathrm{~kW}$
2 $10 \mathrm{~kW}$
3 $1 \mathrm{~kW}$
4 $100 \mathrm{~W}$
Mechanical Properties of Fluids

143251 A block of wood of side $40 \mathrm{~cm}$ floats in water in such a way that its lower face is $5 \mathrm{~cm}$ below the free surface of water. What is the weight of the block?

1 $64 \mathrm{~kg}$
2 $16 \mathrm{~kg}$
3 $8 \mathrm{~kg}$
4 cannot be determined as density of wood is not given
Mechanical Properties of Fluids

143246 Two solids $P$ and $Q$ float in water. It is observed that $P$ floats with half of its volume immersed and $Q$ floats with $\frac{2^{\text {rd }}}{3}$ of its volume is immersed. The ratio of densities of $P$ and $Q$ is :

1 $\frac{4}{3}$
2 $\frac{3}{4}$
3 $\frac{2}{3}$
4 $\frac{3}{2}$
Mechanical Properties of Fluids

143247 Horizontal tube of non-uniform cross-section has radii of $0.1 \mathrm{~m}$ and $0.05 \mathrm{~m}$ respectively at $M$ and $\mathrm{N}$. For a streamline flow of liquid the rate of liquid flow is :

1 changing continuously with time
2 greater at $\mathrm{M}$ than at $\mathrm{N}$
3 greater at $\mathrm{N}$ than at $\mathrm{M}$
4 same at $\mathrm{M}$ and $\mathrm{N}$
Mechanical Properties of Fluids

143248 There are two identical small holes on the opposite sides of a tank containing a liquid. The tank is open at the top. The difference in height between the two holes is $h$. As the liquid comes out of the two holes, the tank will experience a net horizontal force proportional to

1 $\sqrt{\mathrm{h}}$
2 $\mathrm{h}$
3 $\mathrm{h}^{3 / 2}$
4 $\mathrm{h}^{2}$
Mechanical Properties of Fluids

143249 Water is falling on the blades of a turbine at a rate of $100 \mathrm{~kg} / \mathrm{s}$. If the height of the fall is 100 $\mathrm{m}$, the power transferred to the turbine will be approximately

1 $100 \mathrm{~kW}$
2 $10 \mathrm{~kW}$
3 $1 \mathrm{~kW}$
4 $100 \mathrm{~W}$
Mechanical Properties of Fluids

143251 A block of wood of side $40 \mathrm{~cm}$ floats in water in such a way that its lower face is $5 \mathrm{~cm}$ below the free surface of water. What is the weight of the block?

1 $64 \mathrm{~kg}$
2 $16 \mathrm{~kg}$
3 $8 \mathrm{~kg}$
4 cannot be determined as density of wood is not given