BECC TEST 5 Comprehensive Resource To Help You Ace
2026-2027 Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A centrifugal pump discharges a fixed volume of liquid regardless of conditions.
A. True
B. False
Correct Answer: B. False
Rationale: Centrifugal pumps deliver variable flow depending on system resistance and head,
not a fixed volume.
2. Which component of a centrifugal pump prevents reverse flow of liquid?
A. Relief valve
B. Check valve
C. Gate valve
D. Strainer
Correct Answer: B. Check valve
Rationale: A check valve allows flow in one direction and prevents backflow.
3. What device is used to move fluid from one location to another?
A. Compressor
B. Pump
C. Turbine
D. Condenser
Correct Answer: B. Pump
Rationale: Pumps are designed specifically to transport fluids.
4. Which component rotates to create centrifugal force in a pump?
,A. Shaft
B. Casing
C. Impeller
D. Seal
Correct Answer: C. Impeller
Rationale: The impeller spins and imparts energy to the fluid.
5. Which component helps prevent overheating in a centrifugal pump?
A. Cooling fan
B. Recirculation line
C. Impeller
D. Bearing
Correct Answer: B. Recirculation line
Rationale: It ensures continuous flow to prevent heat buildup.
6. The formation of bubbles in a pump casing indicates:
A. Air binding
B. Cavitation
C. Overpressure
D. Leakage
Correct Answer: B. Cavitation
Rationale: Cavitation occurs when vapor bubbles form and collapse due to low pressure.
7. In a centrifugal pump, liquid enters the eye of the:
A. Shaft
B. Impeller
C. Casing
D. Valve
Correct Answer: B. Impeller
Rationale: The “eye” is the center of the impeller where fluid enters.
8. The two gears in a rotary gear pump are called:
, A. Primary and secondary
B. Driver and follower
C. Driving and driven
D. Input and output
Correct Answer: C. Driving and driven
Rationale: One gear drives while the other follows.
9. Which pump operates using centrifugal force from a rotating impeller?
A. Gear pump
B. Diaphragm pump
C. Centrifugal pump
D. Piston pump
Correct Answer: C. Centrifugal pump
Rationale: It uses rotational energy to move fluid.
10. What is used to reduce wear on pump impellers and casing?
A. Bearings
B. Mechanical seal
C. Mechanical shield
D. Packing
Correct Answer: C. Mechanical shield
Rationale: Shields protect internal components from wear.
11. Which tank stores oily waste before separation?
A. Sludge tank
B. Waste oil tank
C. Oily waste holding tank
D. Bilge tank
Correct Answer: C. Oily waste holding tank
Rationale: It stores contaminated water prior to treatment.
12. Maximum allowable oil discharge near land (within 50 miles) is:
2026-2027 Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A centrifugal pump discharges a fixed volume of liquid regardless of conditions.
A. True
B. False
Correct Answer: B. False
Rationale: Centrifugal pumps deliver variable flow depending on system resistance and head,
not a fixed volume.
2. Which component of a centrifugal pump prevents reverse flow of liquid?
A. Relief valve
B. Check valve
C. Gate valve
D. Strainer
Correct Answer: B. Check valve
Rationale: A check valve allows flow in one direction and prevents backflow.
3. What device is used to move fluid from one location to another?
A. Compressor
B. Pump
C. Turbine
D. Condenser
Correct Answer: B. Pump
Rationale: Pumps are designed specifically to transport fluids.
4. Which component rotates to create centrifugal force in a pump?
,A. Shaft
B. Casing
C. Impeller
D. Seal
Correct Answer: C. Impeller
Rationale: The impeller spins and imparts energy to the fluid.
5. Which component helps prevent overheating in a centrifugal pump?
A. Cooling fan
B. Recirculation line
C. Impeller
D. Bearing
Correct Answer: B. Recirculation line
Rationale: It ensures continuous flow to prevent heat buildup.
6. The formation of bubbles in a pump casing indicates:
A. Air binding
B. Cavitation
C. Overpressure
D. Leakage
Correct Answer: B. Cavitation
Rationale: Cavitation occurs when vapor bubbles form and collapse due to low pressure.
7. In a centrifugal pump, liquid enters the eye of the:
A. Shaft
B. Impeller
C. Casing
D. Valve
Correct Answer: B. Impeller
Rationale: The “eye” is the center of the impeller where fluid enters.
8. The two gears in a rotary gear pump are called:
, A. Primary and secondary
B. Driver and follower
C. Driving and driven
D. Input and output
Correct Answer: C. Driving and driven
Rationale: One gear drives while the other follows.
9. Which pump operates using centrifugal force from a rotating impeller?
A. Gear pump
B. Diaphragm pump
C. Centrifugal pump
D. Piston pump
Correct Answer: C. Centrifugal pump
Rationale: It uses rotational energy to move fluid.
10. What is used to reduce wear on pump impellers and casing?
A. Bearings
B. Mechanical seal
C. Mechanical shield
D. Packing
Correct Answer: C. Mechanical shield
Rationale: Shields protect internal components from wear.
11. Which tank stores oily waste before separation?
A. Sludge tank
B. Waste oil tank
C. Oily waste holding tank
D. Bilge tank
Correct Answer: C. Oily waste holding tank
Rationale: It stores contaminated water prior to treatment.
12. Maximum allowable oil discharge near land (within 50 miles) is:
