Fluid Mechanics for Chemical Quiz 12
1 / 50
The speed of sound in an ideal gas varies as the ___________?
2 / 50
The Stoke?s stream function applies to the_________?
3 / 50
The terminal velocity of a particle moving through a fluid varies as dp n. The value of n is equal to ________ in Stoke?s law regime?
4 / 50
The temperature in isentropic flow________?
5 / 50
The pressure at a point in a fluid is not the same in all directions, when the fluid is viscous and_____?
6 / 50
The pressure and power requirement of a gas fan at constant speed & capacity varies _____ the gas density?
7 / 50
The schedule number of a pipe is an indication of its__________?
8 / 50
The pressure co-efficient is the ratio of pressure forces to _______ forces?
9 / 50
The ratio of width to depth for the most economical rectangular section in open channel flow is__________?
10 / 50
The time taken for gravity flow of a fixed volume of liquid (as in Redwood viscometer) is directly proportional to its ___________?
11 / 50
The value of critical Reynolds number for pipe flow is__________?
12 / 50
The Prandtl mixing length is__________?
13 / 50
The pressure drop per unit length of pipe incurred by a fluid ?X? flowing through pipe is ?p. If another fluid ?Y? having both the specific gravity & density just double of that of fluid ?X?, flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be___________?
14 / 50
The uniformity of a gas fluidised bed depends upon the ________ of the solid particles?
15 / 50
The speed of a sound wave in a gas is analogous to the speed of ________?
16 / 50
The pressure head on sudden contraction in a horizontal pipe is converted into the ______ head?
17 / 50
The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is__________?
18 / 50
The ratio of inertial forces to elastic forces is called the __________ number?
19 / 50
The valve commonly used in pipes larger than 2? dia is a_______?
20 / 50
The rate of change of moment of momentum represents the _______ by the fluid?
21 / 50
The pressure intensity is the same in all directions at a point in a fluid_________?
22 / 50
The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke?s law range is proportional to the_______?
23 / 50
The valve used for very remote and accurate control of fluid is a ______ valve?
24 / 50
The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonian fluid in a circular pipe is_______?
25 / 50
The simple Pitot tube does not measure the_________?
26 / 50
The Reynolds number for an ideal fluid flow is __________?
27 / 50
The specific speed of a pump is defined as the speed of a unit of such a size, that it___________?
28 / 50
The ratio of actual discharge to theoretical discharge through an orifice is equal to_______?
29 / 50
The time of oscillation of a floating body is __________?
30 / 50
The terminal velocity of a particle moving through a fluid varies as dp n. What is the value of n? for Newton?s law regime ?
31 / 50
The ratio of inertial forces to viscous forces is called the _______ number?
32 / 50
The ratio of maximum to average velocity in case of streamline flow between parallel plates is________?
33 / 50
The unit of velocity head is__________?
34 / 50
The pressure head of a flow meter remains constant for__________?
35 / 50
The unit of dynamic viscosity in SI unit is___________?
36 / 50
The Prandtl Pitot tube measures the___________?
37 / 50
The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is_______?
38 / 50
The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is_________?
39 / 50
The ratio of inertial forces to gravity forces is called the _______ number?
40 / 50
The ratio of the wall drag to the form drag in the Stoke?s law range (for motion of spherical particles in a stationary fluid) is___________?
41 / 50
The rate of shear versus the shear stress curves are time dependent for ______ fluid?
42 / 50
The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is___________?
43 / 50
The ratio of wall drag to total drag in the Stoke?s law range is__________?
44 / 50
The pitot static tube does not measure the ______ pressure?
45 / 50
The simple Pitot tube measures the ________ pressure?
46 / 50
The range of a particular Rotameter can be increased by___________?
47 / 50
The ratio of pressure forces to inertial forces is called the ________ number?
48 / 50
The pump impeller and the turbine runner in a hydraulic torque converter_____?
49 / 50
The resistance wire used in a hot wire anemometer for conducting electrical current is made of___________?
50 / 50
The unit of bulk modulus of elasticity for a liquid in S.I. unit is______?
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