Q.1
The mechanical energy can be measured by ______
  • a) Adiabatic expansion
  • b) Isentropic compression
  • c) Adiabatic compression
  • d) Isentropic expansion
Q.2
How many impellers does a multistage centrifugal pump have?
  • a) Zero
  • b) One
  • c) Exactly two
  • d) Two and more
Q.3
The energy usage in pumping installation is determined by _______
  • a) Friction characteristics
  • b) Pipe diameter
  • c) Surface tension
  • d) Thermal expansion
Q.4
Which among the following is a friction factor?
  • a) Newtons factor
  • b) Darcy’s factor
  • c) Transfer temperature
  • d) Heizenberg’s factor
Q.5
What is the dimension for Darcy’s friction factor?
  • a) kg/m
  • b) N/mm
  • c) kg
  • d) Dimensionless
Q.6
Formation of bubbles in an impeller is called ______
  • a) Cavities
  • b) Defects
  • c) Friction
  • d) Heat burn
Q.7
Centrifugal pump works by imparting _______
  • a) Potential energy
  • b) Kinetic energy
  • c) Heat energy
  • d) Electrical energy
Q.8
What is the full form of NPSH in a pump?
  • a) Net pressure suction head
  • b) Net positive suction head
  • c) Non-pressure suction head
  • d) Net pressure super head
Q.9
When the NPSH is low, it leads to ________
  • a) Breaking
  • b) Wear
  • c) Corrosion
  • d) Cavitation
Q.10
Wear of impeller can be worsened by __________
  • a) Draft tube
  • b) Pump pressure
  • c) Suspended solenoids
  • d) Turbine head
Q.11
Which pump is the most efficient centrifugal pump?
  • a) Electrical pump
  • b) Reciprocating pump
  • c) Heat pump
  • d) Pressure pump
Q.12
Corrosion in the pump is developed due to _______
  • a) Pressure of air
  • b) Fluid properties
  • c) Draft tube
  • d) Tank dimensions
Q.13
Over heating is a major problem faced in a pump.
  • a) True
  • b) False
Q.14
What is the effect of cavitation in boat propeller?
  • a) It recirculates air
  • b) The pressurizes the air
  • c) It leads to fast spinning
  • d) It breaks the bubbles
Q.15
Lack of prime is a problem faced in centrifugal pump.
  • a) True
  • b) False
0 h : 0 m : 1 s