Question

1. at idle, oil pressure should be at least:

a. 0-10 psi
b. 20-30 psi
c. 40-60 psi
d. over 100 psi

1. a(n) ______ can be used to help find worn engine bearings or other parts that lower engine oil pressure.
2. most technicians rebuild worn oil pumps in the shop. tor f?

Explanation:

Question 7

Idle oil pressure standards: For most engines, at idle, a minimum oil pressure of 20 - 30 psi is typical. Option A (0 - 10 psi) is too low, C (40 - 60 psi) is more like operating pressure, D (over 100 psi) is excessive. So B matches the idle pressure requirement.

To diagnose worn engine bearings or parts causing low oil pressure, a tool like an oil pressure gauge (or related diagnostic tool) is used, but the context implies a diagnostic device. However, common tools for this are oil pressure testers or gauges. But since the blank is for a tool to help find issues, a "compression tester" is not, but an "oil pressure gauge" or "diagnostic tool". Wait, maybe "oil pressure gauge" or a "leak - down tester"? No, for low oil pressure from worn parts, an oil pressure test (using a gauge) or a diagnostic tool. But the standard tool here is an oil pressure gauge or a diagnostic device, but the common answer for such questions (automotive) is that an oil pressure gauge (or a test kit) is used. But maybe the answer is "oil pressure gauge" or "compression tester" no, wait, the question is about finding worn parts causing low pressure. The correct tool is an oil pressure tester (or gauge) to measure pressure and diagnose. But since the blank is to be filled, the typical answer in automotive is that a oil pressure gauge (or a diagnostic tool) is used. But maybe the answer is "oil pressure gauge" or "compression tester" no, let's think again. The problem is about finding worn engine bearings or parts that lower oil pressure. The tool used is an oil pressure gauge (to measure pressure) or a leak - down tester? No, more likely an oil pressure gauge or a diagnostic tool. But in automotive repair, to check for worn parts causing low oil pressure, a mechanic would use an oil pressure test gauge (a tool) to measure the pressure and diagnose. So the answer is likely "oil pressure gauge" (or similar diagnostic tool). But since the options (not shown, but the blank) – wait, the original question has a blank. Wait, maybe the answer is "oil pressure gauge" or "compression tester" no, the correct term is an oil pressure tester or gauge. But maybe the answer is "oil pressure gauge".

Most technicians do not rebuild worn oil pumps in the shop. Rebuilding oil pumps is less common; instead, they are often replaced with new or remanufactured units. So the statement is False.

Answer:

B. 20 - 30 psi

Question 8