A. Blower
B. Compressor
C. Vacuum pump
D. Fan
Correct Answer: Vacuum pump ✔
Last Updated: March 10, 2019
Related MCQs
- For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively) ?
- Volute of a centrifugal pump should be designed in a fashion, such that the__________?
- In a stabilised soap bubble, pressure inside it compared to external pressure is__________?
- The contraction co-efficient for Borda’s mouthpiece (for frictionless fluid) is__________?
- The value of critical Reynolds number for pipe flow is__________?
- The range of a particular Rotameter can be increased by__________?
- Propellers are__________?
- Cavitation occurs in a centrifugal pump when the suction pressure is__________?
- Erosion and pits formation on the impeller of a centrifugal pump may be due to__________?
- What is the ratio of total kinetic energy of fluid passing per second to the value obtained on the basis of average velocity (for laminar flow through a circular pipe) ?
- The curve of metacentre for a floating body __________ the curve of buoyancy?
- Slugging occurs in a fluidised bed, if the bed is__________?
- Unsteady non-uniform flow is represented by flow through a/an__________?
- In case of turbulent flow of a Newtonian fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity)?
- Which law is followed by the velocity distribution in the turbulent boundary layer ?
- f = 16/NRe, is valid for__________?
- Which of the following exemplifies a three dimensional fluid flow ?
- Piezometric head is the sum of the __________ heads?
- The discharge through a semi-circular weir varies as (where, H = Head of liquid.) ?
- Hydraulic __________ works on the principle of Pascal’s law of transmission of fluid pressure?
- Multistage compressors are used in industry, because they__________?
- Dimension of kinematic viscosity is__________?
- In case of Couette flow, the fluid flow is between two large flat parallel plates with__________?
- Weber number is the ratio of inertial force to __________ force?
- Potential flow is the flow of__________?
- Prandtl number is a measure of the__________?
- The head loss in turbulent flow in pipe is proportional to(where, V = velocity of fluid through the pipe) ?
- Gradually varying fluid flow is an example of __________ flow?
- Hydraulic mean radius for flow through packed bed of spherical particle of size, ‘Dp, with porosity ‘ε’ is__________?
- The pressure intensity is the same in all directions at a point in a fluid__________?
- Hot wire anemometer is used to measure the__________?
- The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec?
- The fluid velocity varies as the cube of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid?
- Quicksand is an example of a __________ fluid?
- Design of the casing of centrifugal pump should be such as to minimise the__________?
- Drag co-efficient CD, in Stoke’s law range is given by__________?
- If three pipes of different diameters, lengths & friction factors are connected in parallel, then (where, Q = flow rate, V= fluid velocity f = friction factor). ?
- The valve used for very remote and accurate control of fluid is a __________ valve?
- For laminar flow of a shear thinning liquid in a pipe, if the volumetric flow rate is doubled, the pressure gradient will increase by a factor of__________?
- Capacity of a rotary gear pump can be varied by__________?
- The vent valve provided in a liquid handling centrifugal pump is__________?
- Paper pulp is an example of __________ fluid?
- Drag is the force component exerted on an immersed object, ?
- The most serious disadvantage of an orificemeter is that__________?
- Boundary layer exists in flow__________?
- The capillary rise of mercury is maximum in glass tube of dia __________ mm?
- Laminar flow is characterised by the nonexistence of__________?
- The maximum depth from which a centrifugal pump can draw water is__________?
- The pressure and power requirement of a gas fan at constant speed & capacity varies __________ the gas density?
- A centrifugal pump designed to pump water is employed to pump a more viscous oil. In the later case, the pump__________?
- A 2″ gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is__________?