🏗️Civil Engineering MCQs
Civil Engineering MCQs
479 MCQs431
In order that flow takes place between two points in a pipeline, the differential pressure between thes^ points must be more than_________________?
Africtional force
Bviscosity
Csurface friction
Dall of the above E. none of the above
432
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to________________?
A1 Pa
B91Pa
C981 Pa
D9810 Pa E. 98,100 Pa
433
For pipes, turbulent flow occurs when Reynolds number is_________________?
Aless than 2000
Bbetween 2000 and 4000
Cmore than 4000
Dless than 4000 E. none of the above
434
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal tc__________________?
A10 kg
B100 kg
C1000 kg
D1 kg E. 10,000 kg
435
Bernoulli equation deals with the law of conservation of____________________?
Amass
Bmomentum
Cenergy
Dwork E. force
436
Cavitation is caused by___________________?
Ahigh velocity
Bhigh pressure
Cweak material
Dlow pressure E. low viscosity
437
Principle of similitude forms the basis of__________________?
Acomparing two identical equipments
Bdesigning models so that the result can be converted to prototypes
Ccomparing similarity between design and actual equipment
Dhydraulic designs E. performing acceptance tests
438
Cavitation will begin when______________________?
Athe pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
Bpressure becomes more than critical pressure
Cflow is increased
Dpressure is increased E. none of the above
439
For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal__________________?
Aratio of inertial force to force due to viscosity
Bratio of inertial force to force due to gravitation
Cratio of inertial force to force due to surface tension
Dall the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity
440
Hydrometer is used to determine________________?
Aspecific gravity of liquids
Bspecific gravity of solids
Cspecific gravity of gases
Drelative humidity E. density