Mcq on cavitation

                 Mcq on cavitation

·         1. Cavitation is a process of

(a) Liquid formation

(b) Vapor formation

(c) Neither vapor nor liquid formation

(d) None

ANS: (b)

  1. Cavitation is found in

(a) An accelerated liquid flow

(b) De-accelerated flow

(c) Gas flow

(d) None

ANS: (a)

  1. The accelerated flow is found in
    • (a) Compressors
    • (b) Pumps
    • (c) Blowers
    • (d) None

ANS: ( b)

  1. Cavitation is due to sudden collapse of vapors in
    • (a) High pressure region
    • (b) Low pressure region
    • (c) Both in low and high pressure region
    • (d) None

ANS: (a)

  1. Cavitation causes
    • (a) Erosion
    • (b) Corrosion
    • (c) Both corrosion and erosion
    • (d) None

ANS: (a)

  1. Due to cavitation, shock waves created are
    • (a) Less powerful
    • (b) More powerful
    • (c) With zero power
    • (d) None

ANS: (b)

  1. Cavitation
    • (a) Increases life
    • (b) Decreases life
    • (c) Do not change life
    • (d) None

ANS: (b)

  1. Cavitation produces
    • (a) Feeble sound
    • (b) Loud sound
    • (c) No sound
    • (d) None

ANS: ( b)

  1. Cavitation occurs near the
    • (a) Fast moving turbine blade
    • (b) Slow moving turbine blade
    • (c) Stationary blade
    • (d) None

ANS: (a)

  1. Cavitation causes
    • (a) An increase in power consumption
    • (b) Decrease in power consumption
    • (c) No change in power consumption
    • (d) None

ANS: (a)

  1. Cavition is
    • (a) Un-desirable for the equipment
    • (b) Desirable for the equipment
    • (c) Desirable as well as un-desirable
    • (d) None

ANS: (a)

  1. Cavitation causes a
    • (a) Decrease in shaft seal life
    • (b) Increase in shaft seal life
    • (c) No change in shaft seal life
    • (d) None

ANS: ( a)

  1. Cavitation is also found in
    • (a) Brain
    • (b) Lung
    • (c) Heart
    • (d) None

ANS: ( c )

  1. Cavitation is also found in
    • (a) Legs
    • (b) Arms
    • (c) Knee joints
    • (d) None

ANS: ( c )

  1. Cavitation takes place
    • (a) Near the impeller’s tip
    • (b) Near the impeller’s mouth
    • (c) Near the impeller’s eye
    • (dd) None

ANS: ( a)