Home⇒ Engineering⇒
Fluid mechanics
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ A differential manometer is used to measure. difference of pressures between two points in a pipe [other wrong options] [Discuss in forum] |
| Q2 ⇒ Reynold's number is the ratio of inertia force to. viscous force [other wrong options] [Discuss in forum] |
| Q3 ⇒ The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch. plus [other wrong options] [Discuss in forum] |
| Q4 ⇒ The Francis formula for the discharge over Cippoletti weir is. 1.84 LH3/2 [other wrong options] [Discuss in forum] |
| Q5 ⇒ In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir. two-third [other wrong options] [Discuss in forum] |
| Q6 ⇒ A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if. loss of head and discharge of both the pipes is same [other wrong options] [Discuss in forum] |
| Q7 ⇒ The viscosity of water at 20°C is. one centipoise [other wrong options] [Discuss in forum] |
| Q8 ⇒ A flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called turbulent flow. Agree [other wrong options] [Discuss in forum] |
| Q9 ⇒ In a convergent mouthpiece, the absolute pressure head at vena contracta is the same as that of the atmosphere. True [other wrong options] [Discuss in forum] |
| Q10 ⇒ The density of air is same at different heights. Incorrect [other wrong options] [Discuss in forum] |
| Q11 ⇒ The purpose of a surge tank is. all of the above [other wrong options] [Discuss in forum] |
| Q12 ⇒ The flow in a pipe is laminar, when Reynold number is less than 2000. True [other wrong options] [Discuss in forum] |
| Q13 ⇒ The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is. directly proportional to (radius)4 [other wrong options] [Discuss in forum] |
| Q14 ⇒ The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to. 1/2 depth [other wrong options] [Discuss in forum] |
| Q15 ⇒ Kinematic viscosity is the product of dynamic viscosity and the density of the liquid. No [other wrong options] [Discuss in forum] |
| Q16 ⇒ A piezometer tube is used only for measuring, moderate pressure [other wrong options] [Discuss in forum] |
| Q17 ⇒ The specific gravity of water is taken as. 1 [other wrong options] [Discuss in forum] |
| Q18 ⇒ The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as. stream line [other wrong options] [Discuss in forum] |
| Q19 ⇒ A vessel of 4 m3 contains an oil which weighs 30 kN. The specific weight of the oil is. 7.5 kN/m3 [other wrong options] [Discuss in forum] |
| Q20 ⇒ A flow is called hyper-sonic, if the Mach number is. none of these [other wrong options] [Discuss in forum] |
| Or |