MCQ
1981. What is the instrument used for the automatic control scheme during the fluid flow?
Rotameters
Pulley plates
Rotary Piston
Pilot Static Tube
1982. The highest efficiency is abstained with channel of......section.
circular
trapezoidal
rectangular
triangular
1983. The pressure measured with the help of a pressure gauge is called-
atmospheric pressure
gauge pressure
absolute pressure
mean pressure
1984. The device used to measure the fluid pressure is-
Hygrometer
Calorimeter
Manometer
Thermometer
1985. In Sl system unit of pressure is--
Pascle
PSI
Joule
Watt
1986. When the mach number is more than 6 the flow is called?
Subsonic flow
Supersonic flow
Sonic flow
Hypersonic flow
1987. The frictional resistance of a pipe varies approximately with... of the liquid.
Pressure
velocity
square of velocity
cube
1988. 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
1989. How is absolute pressure measured?
Gauge pressure + Atmospheric pressure
Gauge prosaur-Atmospheric pressure
Gauge pressure/Atmospheric pressure
None of the above
1990. পিজোমিটার টিউব ক্যাবল নিম্নের কোনটি নির্ণয়ে ব্যবহৃত --
লো-প্রেসার
মডারেট প্রেসার
হাইপ্রেসার
ভ্যাকুয়াম প্রেসার
1991. A flow in which the equantity of liquid flowing per second is constant, is called ..... flow.
Steady
turbulent
streamline
unsteady
1992. 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
1993. The mass per unit volume of a liquid ot a standard temperature and pressure is called-
specific weight
mass density
specific gravity
none
1994. Anemometer is used to measure—
velocity
viscosity
pressure
density
1995. 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
1996. 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
1997. Barometer is used to measure—
velocity of liquid
atmospheric pressure
pressure in pipes and channels
difference of pressure between two points in a pipe
1998. The specific weight of water in MKS unit is taken as-
1 gm/cm^3
1000kg/m²
0.001kg/cm²
any of them
1999. 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
2000. Water is a--fuid.
real
Newtonian
pressure
density