Question 1

Technician A says grease fittings are found on parts of the steering system. Technician B says grease fittings are found on parts of the brake system. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Grease fittings are commonly found on parts of the steering system to allow for lubrication of moving components, but they are not typically found on parts of the brake system, where different forms of lubrication and sealing are used.

Question 2

Air filters are typically replaced every 100,000 miles.

Accepted Answer

Air filters are generally recommended to be replaced more frequently, around every 12,000 to 15,000 miles, to ensure proper air flow and engine performance.

Question 3

Two technicians are discussing the proper coolant to use on a late model GM vehicle. Technician A says that "DEX-COOL" type Organic Acid Technology [OAT] is the proper coolant to use. Technician B says that Ethylene Glycol [good old green] type antifreeze can be used on any vehicle. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Technician A is correct because late model GM vehicles specifically require DEX-COOL type Organic Acid Technology (OAT) coolant, which is designed to meet the specific needs of those engines. Technician B is incorrect because using Ethylene Glycol (the traditional green antifreeze) in a system designed for OAT can lead to corrosion and other issues, as it does not meet the specifications for those vehicles.

Question 4

An oil with a viscosity index of 10W-30 has a viscosity of 10 when warm and a 30 when cold.

Accepted Answer

The numbers in the oil's viscosity rating (10W-30) indicate that the oil has a viscosity of 10 in cold conditions (W stands for winter) and a viscosity of 30 at the engine's operating temperature, meaning it flows more easily when cold and thickens when warm to maintain optimal lubrication.

Question 5

After servicing a hybrid car, the engine will not start. Technician A says the wrong engine oil was installed. Technician B says the wrong type of brake fluid was used. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Using the wrong engine oil in a hybrid car can affect the engine's performance and potentially prevent it from starting. Brake fluid type does not impact the engine's ability to start.

Question 6

All Ford vehicles use Type F automatic transmission fluid (ATF).

Accepted Answer

Ford vehicles use various types of automatic transmission fluids, and the specific type required can vary by model and year. Type F ATF is specific to older models, and newer models may require different formulations such as Mercon or Mercon V.

Question 7

Two technicians are discussing testing coolant with test strips. Technician A says the test strip measures freezing protection level. Technician B says the test strip measures coolant acidity.Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Test strips can measure both the freezing protection level and the acidity (pH level) of the coolant, making both Technician A and Technician B correct.

Question 8

A vehicle is towed into the shop with a thrown serpentine belt. Technician A checks for a worn pulley bearing. Technician B checks for a faulty tensioner. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Both Technician A and Technician B are correct because a worn pulley bearing and a faulty tensioner are common causes for a serpentine belt to be thrown off its proper path.

Question 9

Oil should be changed only when it appears dirty or black.

Accepted Answer

Oil should be changed according to the vehicle manufacturer's recommendations, which is typically based on mileage or time, not just the appearance of the oil. Dirty or black oil can indicate it's time for a change, but oil can degrade and lose its effectiveness before these visual signs appear.

Question 10

Technician A checks V-belt tension by pressing his thumb firmly on the longest straight span of the belt and measuring the amount of deflection. Technician B uses a belt tension gauge. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Both Technician A and Technician B are correct. Technician A's method of checking V-belt tension by pressing on the belt and measuring deflection is a common manual technique. Technician B's use of a belt tension gauge is a more precise method. Both approaches are valid for assessing belt tension.

Question 11

Oil viscosity classification is established by the Society of Automotive Engineers (SAE).

Accepted Answer

The Society of Automotive Engineers (SAE) establishes the oil viscosity classification to standardize the measurement of oil's thickness and flow characteristics, ensuring compatibility and performance across different engine types and operating conditions.

Question 12

The VIN number includes all the information listed below EXCEPT:
A)model year
B)engine type
C)manufacturer
D)vehicle weight

Accepted Answer

The VIN (Vehicle Identification Number) includes information such as the model year, engine type, and manufacturer, but it does not include the vehicle's weight.

Question 13

Two technicians are discussing the measurement of antifreeze concentration in coolant. Technician A uses a coolant hydrometer. Technician B uses a refractomer. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Both technicians are correct because both a coolant hydrometer and a refractometer can be used to measure the concentration of antifreeze in coolant. Each tool uses a different method to determine the concentration.

Question 14

A belt that does not have proper tension may squeal or chirp.

Accepted Answer

A belt with improper tension can slip over the pulleys it's meant to drive, causing a squealing or chirping noise due to the friction and misalignment.

Question 15

Technician A wipes off the outside of a zerk fitting before injecting grease into it. Technician B injects just enough grease to cause the boot to expand slightly. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Accepted Answer

Both technicians are correct. Technician A is correct in wiping off the outside of a zerk fitting before injecting grease to prevent contamination. Technician B is correct in injecting just enough grease to cause the boot to expand slightly, which ensures that enough grease is inside without overfilling.

Question 16

Hybrid vehicles are maintained and serviced in the same manner as conventional vehicles, except for the hybrid components.

Accepted Answer

Hybrid vehicles have many of the same maintenance needs as conventional vehicles for components like brakes, tires, and suspension, but they also have unique requirements for their hybrid-specific components, such as the battery system and electric motor.

Question 17

A torque stick cannot be used to tighten lug nuts.

Accepted Answer

A torque stick is specifically designed to be used with an impact wrench to properly tighten lug nuts to a specified torque, preventing over-tightening.

Question 18

Most hydraulic clutch systems use brake fluid.

Accepted Answer

Hydraulic clutch systems typically use brake fluid as the hydraulic medium because it is readily available and has properties suitable for the high-pressure environments found in clutch and brake systems.

Question 19

Disconnecting and then reconnecting the battery on a late model car might cause the engine to run rough for a few miles.

Accepted Answer

This happens because disconnecting the battery can reset the car's computer, which may need to drive for a while to relearn the optimal engine management settings.

Question 20

Before replacing a serpentine belt ______.
A)cut the old belt with a razor blade to make the job easier.
B)measure the belt tension with a belt tension gauge so that the new belt can be retensioned to the original tension.
C)remove the fan and water pump.
D)locate the belt routing diagram on the underhood decal or shop manual; if none is found draw your own

Accepted Answer

Locating the belt routing diagram is crucial for proper installation of a new serpentine belt. This ensures that the belt is routed correctly around the various pulleys. Cutting the old belt, measuring tension with a gauge for reapplication, and removing the fan and water pump are not standard steps in belt replacement.

Quiz 8: Preventative Maintenance and Basic Services

Technician A says grease fittings are found on parts of the steering system. Technician B says grease fittings are found on parts of the brake system. Who is correct?

Air filters are typically replaced every 100,000 miles.

Two technicians are discussing the proper coolant to use on a late model GM vehicle. Technician A says that "DEX-COOL" type Organic Acid Technology [OAT] is the proper coolant to use. Technician B says that Ethylene Glycol [good old green] type antifreeze can be used on any vehicle. Who is correct?

An oil with a viscosity index of 10W-30 has a viscosity of 10 when warm and a 30 when cold.

After servicing a hybrid car, the engine will not start. Technician A says the wrong engine oil was installed. Technician B says the wrong type of brake fluid was used. Who is correct?

All Ford vehicles use Type F automatic transmission fluid (ATF).

Two technicians are discussing testing coolant with test strips. Technician A says the test strip measures freezing protection level. Technician B says the test strip measures coolant acidity.Who is correct?

A vehicle is towed into the shop with a thrown serpentine belt. Technician A checks for a worn pulley bearing. Technician B checks for a faulty tensioner. Who is correct?

Oil should be changed only when it appears dirty or black.

Technician A checks V-belt tension by pressing his thumb firmly on the longest straight span of the belt and measuring the amount of deflection. Technician B uses a belt tension gauge. Who is correct?

Oil viscosity classification is established by the Society of Automotive Engineers (SAE).

The VIN number includes all the information listed below EXCEPT:

Two technicians are discussing the measurement of antifreeze concentration in coolant. Technician A uses a coolant hydrometer. Technician B uses a refractomer. Who is correct?

A belt that does not have proper tension may squeal or chirp.

Technician A wipes off the outside of a zerk fitting before injecting grease into it. Technician B injects just enough grease to cause the boot to expand slightly. Who is correct?

Hybrid vehicles are maintained and serviced in the same manner as conventional vehicles, except for the hybrid components.

A torque stick cannot be used to tighten lug nuts.

Most hydraulic clutch systems use brake fluid.

Disconnecting and then reconnecting the battery on a late model car might cause the engine to run rough for a few miles.

Before replacing a serpentine belt ______.