QuestionDecember 13, 2025

Tech A says closing the restriction valve on a flow meter will increase pump output pressure. Tech B says oil temperature won't have any effect on pump output readings. Who is correct? Select one: a. Tech A b. Tech B c. Both Tech A and Tech B d. Neither Tech A nor Tech B

Tech A says closing the restriction valve on a flow meter will increase pump output pressure. Tech B says oil temperature won't have any effect on pump output readings. Who is correct? Select one: a. Tech A b. Tech B c. Both Tech A and Tech B d. Neither Tech A nor Tech B
Tech A says closing the restriction valve on a flow meter
will increase pump output pressure. Tech B says oil
temperature won't have any effect on pump output
readings. Who is correct?
Select one:
a. Tech A
b. Tech B
c. Both Tech A and Tech B
d. Neither Tech A nor Tech B

Solution
4.3(222 votes)

Answer

a. Tech A Explanation 1. Evaluate Tech A’s statement Closing a restriction valve increases flow resistance. With higher resistance, the pump must work against more pressure. Therefore, **pump output pressure increases**. Tech A is correct. 2. Evaluate Tech B’s statement Oil temperature affects viscosity. Lower viscosity (higher temperature) changes flow rates and pressures, so **oil temperature does affect pump output readings**. Tech B is incorrect.

Explanation

1. Evaluate Tech A’s statement<br /> Closing a restriction valve increases flow resistance. With higher resistance, the pump must work against more pressure. Therefore, **pump output pressure increases**. Tech A is correct.<br /><br />2. Evaluate Tech B’s statement<br /> Oil temperature affects viscosity. Lower viscosity (higher temperature) changes flow rates and pressures, so **oil temperature does affect pump output readings**. Tech B is incorrect.
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