⚙️Mechanical Engineering MCQs
Mechanical Engineering MCQs
488 MCQs231
The density of water is 1000 kg/m3 at__________________?
A0°C
B0°K
C4°C
D20°C E. all temperature
232
Gradually varied flow is__________________?
Asteady uniform
Bnon-steady non-uniform
Cnon-steady uniform
Dsteady non-uniform E. true one-dimensional
233
Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?
A1000 kg
B4000 kg
C2000 kg
D8000 kg E. 16000 kg
234
Rotameter is a device used to measure______________?
Aabsolute pressure
Bvelocity of fluid
Cflow
Drotation E. velocity of air
235
In the case of steady flow of a fluid, the acceleration of any fluid particle is________________?
Aconstant
Bvariable
Czero
Dzero under limiting conditions E. never zero
236
During the opening of a valve in a pipe line, the flow is_________________?
Asteady
Bunsteady
Cuniform
Dlaminar E. free vortex type
237
The flow which neglects changes in a transverse direction is known as_________________?
Aone dimensional flow
Buniform flow
Csteady flow
Dturbulent flow E. streamline flow
238
The flow in which conditions do not change with time at any point, is known as_________________?
Aone dimensional flow
Buniform flow
Csteady flow
Dturbulent flow E. streamline flow
239
When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?
Aquasi static
Bsteady state
Claminar
Duniform E. static
240
The normal stress in a fluid will be constant in all directions at a point only if__________________________?
Ait is incompressible
Bit has uniform viscosity
Cit has zero viscosity
Dit is frictionless E. it is at rest