⚙️Mechanical Engineering MCQs
Mechanical Engineering MCQs
488 MCQs201
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to_________________?
Athe weight of the body
Bmore than the weight of the body
Cless than the weight of the body
Dweight of the fluid displaced by the body E. weight of body plus the weight of the fluid displaced hy the body
202
For a floating body to be in stable equilibrium, its metacentre should be___________________?
Abelow the center of gravity
Bbelow the center of buoyancy
Cabove the center of buoyancy
Dbetween e.g. and center of pressure E. above the center of gravity
203
The two important forces for a floating body are__________________?
Abuoyancy, gravity
Bbuoyancy, pressure
Cbuoyancy, inertial
Dinertial, gravity E. gravity, pressure
204
Center of pressure on an inclined plane is___________________?
Aat the centroid
Babove the centroid
Cbelow the centroid
Dat metacentre E. at center of pressure
205
The centre of gravity of the volume of the liquid displaced by an immersed body is called ___________________?
Acentre of gravity
Bcentre of pressure
Cmetacentre
Dcentre of buoyancy E. centroid
206
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be __________________?
A2 metres of water column
B3 metres of water column
C3.5 metres of water column
D4 m of water column E. none of the above
207
Bernoulli equation deals with the law of conservation of__________________?
Amass
Bmomentum
Cenergy
Dwork E. force
208
Piezometer is used to measure_____________________?
Apressure in pipe, channels etc.
Batmospheric pressure
Cvery low pressures
Ddifference of pressure between two points E. flow
209
Euler’s dimensionless number relates the following__________________?
Ainertial force and gravity
Bviscous force and inertial force
Cviscous force and buoyancy force
Dpressure force and inertial force E. pressure force and viscous force
210
Which of the following manometer has highest sensitivity_________________?
AU-tube with water
Binclined U-tube
CU-tube with mercury
Dmicro-manometer with water E. displacement type