Question

what does the shaft do? transfers force from the motor to the impeller makes the pump water tight holds the impeller powers pump and spins impeller translates power and absorbs shock and vibrations question 4 (1 point) under normal operating conditions, what should you see performing pump? cavitations vibrations low gurgling no noise

Explanation:

For the first question: A pump shaft's core function is to transmit rotational force from the motor to the impeller. Seals make the pump watertight, the shaft does not primarily hold the impeller (hardware like nuts does), the motor provides power, and shock/vibration absorption is not its main role.
For the second question: Cavitations and excessive vibrations are abnormal issues. A properly operating pump produces a low, steady gurgling sound from fluid movement, not complete silence.

Answer:

1. Transfers force from the motor to the impeller
2. low gurgling