Important Paper Civil Engineering
1. The magnitude of the buoyant force can be determined by:
(a) Newton's law of viscosity
(b) Archimede's principle
(c) Priciples of moments
(d)None of the above
ans (b)
2. Inclined manometer is used fir precise measurement of smalk pressure in
(a) Low velocity gas flow
(b) High velocity gas flow
(c) High velocity water flow
(d) Low velocity water flow
ans (a)
3. The equivalent og a prrsuure of a kg/cm in terms of the height of water column is :
(a)10.3 metres of water
(b)10 metres of water
(c)1 metre of water
(d) 1.3 metres of water
उत्तर (b)
4. The total pressure force of a plane area is equal yo the area multiplied by the intensity of pressure at is centroid, if
(a)area is horizontal
(b)area is vertical
(c)area is inclined
(d)All the above
ans (d)
5. Pascal's law states that pressure at any point in a fluid at rest has:
(a) different magnitude in all directions
(b)Same magnitude in all direction
(c) Zero magnitude in all direction
(d) None of the above
ans (b)
6. Gauge pressure at a point is equal to
(a) Absolute pressure plus atmospheric pressure
(b) Absolute Pressure minus atmospheric pressure
(c) Vaccuum pressure plus absolute pressure
(d) None of the above
ans (b)
7. Given that atmospheric pressure head =9m. vapour pressure head(max.)= 1m, failure head = 40m and cavitation coefficient 𝜎 =0.15, thr height at which the turbine can be set above the tail race level is :
(a) 6m
(b) 4m
(c)3cm
(d) 2m
ans (d)
8. U-tube manometer measures
(a) Local atmospheric pressure
(b) Difference in pressure between teo points
(c) Difference in total energy between two points/
(d) Absolute pressure at a point
ans (d)
9. For measurement s of snall pressure differences, a mixture having a specific gravity og 1.10 is used. The magnification so obtained in the differential heaf shall be
(a)1.10 गुना
(b)10 गुना
(c) 0.10 गुना
(d) 4 गुना
ans (c)
10. In a differential manometer, the use of mercury is advantageous when thr pressure difference is :
(a)Large
(b)Small
(c)Either large or small
(d) None of the above
ans (a)