Hydraulics & Fluid Mechanics Free surface of a liquid tends to contract to the smallest possible area due to force of surface tension friction cohesion viscosity surface tension friction cohesion viscosity ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Two pipe systems are said to be equivalent when length of pipe and discharge are same in two systems length and diameter are same in two systems friction factor and length are same in two systems head loss and discharge are same in two systems length of pipe and discharge are same in two systems length and diameter are same in two systems friction factor and length are same in two systems head loss and discharge are same in two systems ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The Prartdtl mixing length is zero at the pipe wall independent of shear stress None of these maximum at the pipe wall zero at the pipe wall independent of shear stress None of these maximum at the pipe wall ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics The increase in meta centric height i) increases stability ii) decreases stability iii) increases comfort for passengers iv) decreases comfort for passengers The correct answer is (i) and (iii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (iii) (i) and (iv) (ii) and (iii) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics Mercury is often used in barometer because both (B) and (C) it is the best liquid its vapour pressure is so low that it may be neglected the height of barometer will be less both (B) and (C) it is the best liquid its vapour pressure is so low that it may be neglected the height of barometer will be less ANSWER DOWNLOAD EXAMIANS APP
Hydraulics & Fluid Mechanics A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ? 1 : 2.5 1 :25 1:50 1 : 5 1 : 2.5 1 :25 1:50 1 : 5 ANSWER DOWNLOAD EXAMIANS APP
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