8:72, 0-4, 83,52,
‏رمم‎ 0-2, ७-३, 1.
‏یں‎ RL, 5-3
Correct Answer: Option ®
Question15:-Choose the incorrect statement.
‘As Centrifugal pumps deliver liquid at uniform pressure without pulsations.
B:-Reciprocating pumps operate at nearly constant efficiency over a wide range of discharge rates
For a centrifugal pump, the valves in the discharge line may be closed without injuring the pump.
D-Both centrifugal and reciprocating pumps are subject to air binding
Correct Answer:- Option-D
Question16::Which of the following is a positive displacement pump 7
‘As Centrifugal pump
B:-Gear pump
(11)
7711
படட பப
Question17::When the diameter of the colurmn is small with deep bed of solids, which problem is prone to occur in a uidized bed ?
‘AcSlugging
B:-Channeling
೦೯೫/೧೬೧೭
D-Circulation
Correct Answer:- ೦೧000
Question18::What is the meaning of the following expression : 250 + 200 mesh particles 7
‘AsPass through 150 and retained in 200
B:-Does not pass through 150 and 200
೦-855 through both 250 and 200
D:-Pass through 200 and retained in 150
Correct Answer:- ೦೧000

वि centrifugal pump is used to pump water (density = 1000 kg/m" ( from an inlet pressure of 10"Pa to an outlet pressure of 23510 Pa, The exit is at an elevation of 10 m

above the pump. The cross sectional area of inlet and outlet pipes are 10 സ. The average velocity of fluid is 10 m/s. The acceleration due to gravity is 20 m/s*. Neglect the frictional
losses in the system. The pump has an efficiency of 80%. The power required for the pump in head of water is

டய
B:-10.33 m
तणा
D:20m
Correct Answer: Option-C
Question20::Which of the following Mixers are used for Cohesive Solids ?
‘AcChange can mixer
B:-Tumbling mixer
C=-Ribbon blender
D-Impact wheels
Correct Answer:- ೦೧000
Question21:-One Btu of heat is supplied to 100 ‏و‎ water at 30°C and atmospheric pressure. There is no heat losses to the surroundings. The temperature of water will increase to
252°C
2:020
ടമ
5:3026

Correct Answer: Option-C
Question22:
resulting gas will be

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