Monday 21 July 2014

SAMPLE SHEET: GATE 2015; FLUID MECHANICS (MECHANICAL ENGINEERING)

CRACKGATE EDUCATION
House No: 237; Sector – 5; Chiranjeev Vihar, Ghaziabad
                     Contact No : 09678534833; 09555921800
PRACTICE WORKSHEET GATE-2015
MECHANICAL ENGINEERING
TOPIC: FLUID MECHANICS
Difficulty Level: 1
SET ONE: Each question has several entries, choose the most appropriate one

01) If no resistance is encountered due to displacement then such a substance is called
            a) fluid               b) real gas                 c) ideal fluid          d) visco-elastic fluid

02) The volumetric change of a fluid due to a resistance is called as
            a) volumetric strain,                             b) volumetric index
            c) compressibility                                d) cohesion

03) Mercury does not wet glass due to a property of liquids known as
            a) adhesion                                          b) cohesion
            c) viscosity                                          d) surface tension

04) The surface tension of Mercury at normal temperature compared to that of water is
            a) more                                                          b) less
            c) depends upon the glass tube                        d) equal

05) Kinematic viscosity is dependent upon
            a) pressure       b) distance       c) density         d) flow

06) Alcohol is used in manometers because
            a) it is clearly visible                            b) it provides suitable meniscus
            c) it can provide longer column due to its low density
            d) it has low surface tension

07) The buoyancy depends upon
            a) mass of liquid displaced                  b) viscosity of the liquid
            c) pressure of the displaced liquid       d) none of the above

08) The centre of gravity of the volume of the liquid displaced by an immersed body is called
            a) meta-centre                                      b) centre of gravity
            c) centre of pressure                            d) centre of buoyancy

09) Surface energy per unit area of a surface is numerically equal to
            a) atmospheric pressure                                   b) surface tension
            c) force of cohesion                                         d)  viscosity

10) Flow occurring in a pipeline when a valve is being opened is
            a) steady flow                                                 b) unsteady flow
            c) laminar flow                                                d) vortex flow

For answers contact at 09555921800

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