Brine density in a distilling plant is measured with a/an （）.

A.A large change of viscosity occurs with a minor change in temperature
B.No change in viscosity occurs with any change in temperature
C.Very little change in viscosity occurs with a significant change in temperature
D.The viscosity of the oil increases with an increase in temperature

A.pump would be very noisy
B.pump would vibrate excessively
C.pump would develop insufficient flow
D.stuffing box would leak excessively

A.gravity and feed oil cups
B.grease cups
C.hand during installation
D.leakage through the stuffing box