Question 1

Hydrodynamic lubrication, created by the wedging action of oil between the crankshaft journal and bearing, can be as high as ________ PSI.

Accepted Answer

A) 60 
B) 500 
C) 1000 
D) 120 
A) 60 
B) 500 
C) 1000 
D) 120 C

Question 2

In a dry sump system there is no oil at all in the oil pan.

Accepted Answer

A) True 
 B)False  False

Question 3

An engine oil cooler usually uses ________ to cool the oil.

Accepted Answer

A) Air conditioning evaporator output 
B) Coolant 
C) Automatic transmission fluid after it flows through the radiator 
D) Air 
A) Air conditioning evaporator output 
B) Coolant 
C) Automatic transmission fluid after it flows through the radiator 
D) Air B

Question 4

A typical oil pump can pump how many gallons per minute?

Accepted Answer

A) 10 to 60 gallons 
B) 3 to 6 gallons 
C) 50 to 100 gallons 
D) 6 to 10 gallons 
A) 10 to 60 gallons 
B) 3 to 6 gallons 
C) 50 to 100 gallons 
D) 6 to 10 gallons

Question 5

Two technicians are discussing oil pumps. Technician A says that many oil pumps are driven directly off the front of the crankshaft. Technician B says that some are driven from the distributor if the engine uses a distributor-type ignition system. Which technician is correct?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 6

Lower than specified oil pressure is measured on a high mileage engine. Technician A says that worn main or rod bearings could be the cause. Technician B says that a clogged oil pump pickup screen could be the cause. Which technician is correct?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 7

Oil consumption of about 1 quart every 700 miles is normal for a motor vehicle.

Accepted Answer

A) True 
 B)False

Question 8

The oil pressure relief valve is located on the outlet of the oil filter.

Accepted Answer

A) True 
 B)False

Question 9

Engine oil passages in an engine block are called ________.

Accepted Answer

A) Holes 
B) Pathways 
C) Runners 
D) Galleries 
A) Holes 
B) Pathways 
C) Runners 
D) Galleries

Question 10

What type of oil pump is driven by the crankshaft?

Accepted Answer

A) Internal/external gear 
B) Gerotor 
C) External gear 
D) Both A and B 
A) Internal/external gear 
B) Gerotor 
C) External gear 
D) Both A and B

Question 11

What type of oil pump is pictured here?

Accepted Answer

A) External gear 
B) Rotor type 
C) Helical gear 
D) Gerotor 
A) External gear 
B) Rotor type 
C) Helical gear 
D) Gerotor

Question 12

Normal oil pump pressure in an engine is ________ PSI.

Accepted Answer

A) 3-7 
B) 150-200 
C) 10-60 
D) 100-120 
A) 3-7 
B) 150-200 
C) 10-60 
D) 100-120

Question 13

A dry sump system is used in some high-performance vehicles because ________.

Accepted Answer

A) It allows for a greater oil capacity so that oil temperatures can be controlled 
B) It allows the engine to develop more power 
C) It allows the vehicle to corner or brake for long periods of time 
D) All of the above 
A) It allows for a greater oil capacity so that oil temperatures can be controlled 
B) It allows the engine to develop more power 
C) It allows the vehicle to corner or brake for long periods of time 
D) All of the above

Question 14

The oil drains back to the oil pan through ________.

Accepted Answer

A) Drainback holes 
B) The pushrods 
C) The camshaft 
D) Drain pumps 
A) Drainback holes 
B) The pushrods 
C) The camshaft 
D) Drain pumps

Question 15

Technician A says that the lubricating system forms a seal between the piston rings and cylinder walls.Technician B says the lubricating system helps cool engine parts. Who is right?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Question 16

Some vehicles use an oil cooler the help maintain proper oil temperature. Oil temperature range should be ________.

Accepted Answer

A) Above 300° F 
B) 212° F to 300° F 
C) 100° F to 150° F 
D) 100° F to 125° F 
A) Above 300° F 
B) 212° F to 300° F 
C) 100° F to 150° F 
D) 100° F to 125° F

Question 17

What type of oil pump is this?

Accepted Answer

A) A vane pump driven by the crankshaft 
B) A gerotor pump driven by the camshaft 
C) A gerotor pump driven by the crankshaft 
D) A rotary pump driven by the camshaft 
A) A vane pump driven by the crankshaft 
B) A gerotor pump driven by the camshaft 
C) A gerotor pump driven by the crankshaft 
D) A rotary pump driven by the camshaft

Question 18

Oil leaving the oil filter is delivered to the oil passages.

Accepted Answer

A) True 
 B)False

Question 19

The oil pressure relief valve controls ________ oil pressure in the lubrication system.

Accepted Answer

A) Nominal 
B) Minimum 
C) Average 
D) Maximum 
A) Nominal 
B) Minimum 
C) Average 
D) Maximum

Question 20

Technician A says that oil pressure is normally higher when the engine is cold. Technician B says that normal engine oil pump pressure ranges from 20 to 80 psi (200 to 400 kPa) or 20 psi for every 1000 engine RPM. Who is right?

Accepted Answer

A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B 
A) Technician A only 
B) Technician B only 
C) Both technicians A and B 
D) Neither technician A nor B

Exam 23: Lubrication System Operation and Diagnosis

Hydrodynamic lubrication, created by the wedging action of oil between the crankshaft journal and bearing, can be as high as ________ PSI.

In a dry sump system there is no oil at all in the oil pan.

An engine oil cooler usually uses ________ to cool the oil.

A typical oil pump can pump how many gallons per minute?

Two technicians are discussing oil pumps. Technician A says that many oil pumps are driven directly off the front of the crankshaft. Technician B says that some are driven from the distributor if the engine uses a distributor-type ignition system. Which technician is correct?

Lower than specified oil pressure is measured on a high mileage engine. Technician A says that worn main or rod bearings could be the cause. Technician B says that a clogged oil pump pickup screen could be the cause. Which technician is correct?

Oil consumption of about 1 quart every 700 miles is normal for a motor vehicle.

The oil pressure relief valve is located on the outlet of the oil filter.

Engine oil passages in an engine block are called ________.

What type of oil pump is driven by the crankshaft?

What type of oil pump is pictured here?

Normal oil pump pressure in an engine is ________ PSI.

A dry sump system is used in some high-performance vehicles because ________.

The oil drains back to the oil pan through ________.

Technician A says that the lubricating system forms a seal between the piston rings and cylinder walls.Technician B says the lubricating system helps cool engine parts. Who is right?

Some vehicles use an oil cooler the help maintain proper oil temperature. Oil temperature range should be ________.

What type of oil pump is this?

Oil leaving the oil filter is delivered to the oil passages.

The oil pressure relief valve controls ________ oil pressure in the lubrication system.

Technician A says that oil pressure is normally higher when the engine is cold. Technician B says that normal engine oil pump pressure ranges from 20 to 80 psi (200 to 400 kPa) or 20 psi for every 1000 engine RPM. Who is right?

Automotive Background and Overview

Careers in the Automotive Service Industry

Starting a Career in the Automotive Industry

Working As a Professional Service Technician

Technician Certification

Shop Safety

Environmental and Hazardous Materials

Fasteners and Thread Repair

Hand Tools

Power Tools and Shop Equipment

Vehicle Lifting and Hoisting

Measuring Systems and Tools

Scientific Principles and Materials

Math, Charts, and Calculations

Service Information

Vehicle Identification and Emission Ratings

Preventative Maintenance and Service Procedures

Gasoline Engine Operation, Parts, and Specifications

Diesel Engine Operation and Diagnosis

Coolant

Cooling System Operation and Diagnosis

Engine Oil

Intake and Exhaust Systems

Turbocharging and Supercharging

Engine Condition Diagnosis

In-Vehicle Engine Service

Engine Removal and Disassembly

Engine Cleaning and Crack Detection

Cylinder Head and Valve Guide Service

Valve and Seat Service

Camshafts and Valve Trains

Pistons, Rings, and Connecting Rods

Engine Blocks

Crankshafts, Balance Shafts, and Bearings

Gaskets and Sealants

Engine Assembly and Dynamometer Testing

Engine Installation and Break-In

Electrical Fundamentals

Electrical Circuits and Ohms Law

Series, Parallel, and Series-Parallel Circuits

Circuit Testers and Digital Meters

Automotive Wiring and Wire Repair

Wiring Schematics and Circuit Testing

Capacitance and Capacitors

Magnetism and Electromagnetism

Electronic Fundamentals

Can and Network Communications

Batteries

Battery Testing and Service

Cranking System

Cranking System Diagnosis and Service

Charging System

Charging System Diagnosis and Service

Lighting and Signaling Circuits

Driver Information and Navigation Systems

Horn, Wiper, and Blower Motor Circuits

Accessory Circuits

Airbags and Pretensioner Circuits

Audio System Operation and Diagnosis