MCQ
1981. Barometer is used to measure—
velocity of liquid
atmospheric pressure
pressure in pipes and channels
difference of pressure between two points in a pipe
1982. The highest efficiency is abstained with channel of......section.
circular
trapezoidal
rectangular
triangular
1983. A flow in which the equantity of liquid flowing per second is constant, is called ..... flow.
Steady
turbulent
streamline
unsteady
1984. What is the unit weight of water?
50 lb/ft^2
90.5 lb/ft^2
62.5 lb/ft^2
100 lb/ft^2
1985. The device used to measure the fluid pressure is-
Hygrometer
Calorimeter
Manometer
Thermometer
1986. The power transmitted through the pipe is maximum when the head lost due to friction is equal to-
one-third of the total supply head
one-fourth of the total supply head
one-half of the total supply head
two-third of the total supply head
1987. পাম্প-এর সৃষ্ট হেড (Head)-
চক্রক (Impeller)-এর ব্যাস এর সমানুপাতিক
চক্রক (Impoller)-এর বেগের সমানুপাতিক
চক্রক (Impeller)-এর ব্যাস এবং বেগের সমানুপাতিক
কোনোটিই নয়
1988. In Sl system unit of pressure is--
Pascle
PSI
Joule
Watt
1989. The mass per unit volume of a liquid ot a standard temperature and pressure is called-
specific weight
mass density
specific gravity
none
1990. Anemometer is used to measure—
velocity
viscosity
pressure
density
1991. How is absolute pressure measured?
Gauge pressure + Atmospheric pressure
Gauge prosaur-Atmospheric pressure
Gauge pressure/Atmospheric pressure
None of the above
1992. কাপ্তাই জলবিদ্যুৎ কেন্দ্রে কোন টারবাইন ব্যবহৃত হয়?
থমসন
কাপলান
ফ্রান্সিস
জনভ্যাল
1993. The frictional resistance of a pipe varies approximately with... of the liquid.
Pressure
velocity
square of velocity
cube
1994. When the mach number is more than 6 the flow is called?
Subsonic flow
Supersonic flow
Sonic flow
Hypersonic flow
1995. Water is a--fuid.
real
Newtonian
pressure
density
1996. The pressure measured with the help of a pressure gauge is called-
atmospheric pressure
gauge pressure
absolute pressure
mean pressure
1997. The specific weight of water in MKS unit is taken as-
1 gm/cm^3
1000kg/m²
0.001kg/cm²
any of them
1998. পিজোমিটার টিউব ক্যাবল নিম্নের কোনটি নির্ণয়ে ব্যবহৃত --
লো-প্রেসার
মডারেট প্রেসার
হাইপ্রেসার
ভ্যাকুয়াম প্রেসার
1999. In a steady flow process, the ratio of-
heat transfer is constant
work transfer is constant
mass flow at inlet and outlet is same
all of these
2000. The ratio of specific weight of a fiquid to the specific weight of pure water at a standard temparature is called-.
demity of liquid
specific gravity of liquid
compressibility of liquid
surface tension of liquid