Related InterviewSolutions

• The water level on a tank is 5m high. There is a hole of `1 cm^(2)` cross-section at the bottom of the tank. Find the initial rate with which water will leak through the hole. (`g= 10ms^(-2)`)A. `10^(-3) m^3s^(-1)`B. `10^(-4)m^3s^(-1)`C. `10m^3s^(-1)`D. `10^(-2)m^3s^(-1)`
• At a depth of 1000 m in an ocean (a) what is the absolute pressure? (b) what is the gauge pressure? (c ) Find the force acting on the window of area `20 cm xx 20cm` of a submarine at this depth, the interior of which is maintained at sea-level atmospheric pressure. The density of sea water is `1.03 xx 10^(3) kg m^(-3)`, `g=10ms^(-2)`. Atmospheric pressure = `1.01 xx 10^(5) Pa`.A. 40 atmB. 52 atmC. 32 atmD. 62 atm
• A tank if filled with water upto height H. When a hole is made at a distance h below the level of water. What will be the horizontal range of water jet ?A. `2 sqrt(h(H-h))`B. `4 sqrt(h(H+h))`C. `4 sqrt(h(H-h))`D. `2 sqrt (h(H+h))`
• A block is gently placed on a conveyor belt moving horizontal with constant speed After `t = 4s` the velocity of the block becomes equal to velocity of the belt If the coefficient of friction between the block and the belt is `mu = 0.2`, then the velocity of the conveyor belt is .A. `8ms^(-1)`B. `4ms^(-1)`C. `6ms^(-1)`D. `18ms^(-1)`
• The breaking strength of the cable used to pull a body is 40N. A body of mass 8kg is resting on a table of coefficient of friction `mu=0.20` . The maximum acceleration which can be produced by the cable is (take , `g=10ms^(-2)`)A. `6ms^(-2)`B. `3ms^(-2)`C. `8ms^(-2)`D. `9ms^(-2)`
• Water is conveyed through a horizontal tube 8 cm in diameter and 4 kilometer in length at the rate of 20 litre/s Assuming only viscous resistance , calculate the pressure required to maintain the flow . Coefficient of viscosity of water is 0.001 pa sA. 45 cmB. 50 cmC. 59.68cmD. 49.68 cm
• Two capillary tubes of the same length but different radii r1 and r2 are fitted in parallel to the bottom of a vessel. The pressure head is P . What should be the radius of a single tube that can replace the two tubes so that the rate of flow is same as beforeA. `r_1+r_2`B. `(r_1r_2)/(r_1+r_2)`C. `(r_1+r_2)/(2)`D. None of these
• The rate of flow of liquid in a tube of radius r, length l, whose ends are maintained at a pressure difference P is `V = (piQPr^(4))/(etal)` where `eta` is coefficient of the viscosity and Q isA. 8B. `1/8`C. 16D. `1/16`
• If the velocity head of a stream of water is equal to 10 cm, then its speed of flow is approximatelyA. `1.0ms^(-1)`B. `1.4ms^(-1)`C. `140 ms^(-1)`D. `10ms^(-1)`
• In a streamline flowA. The speed of a particle always remains sameB. The velocity of a particle always remains sameC. The kinetic energies of all particles arriving at a given point are the sameD. The potential energies of all the particles arriving at a given point are the same