Question 1

An aftermarket blow-through turbocharger is often easier to fit under the hood. True or False?

Accepted Answer

A) True 
 B)False  True

Question 2

The maximum flow capacity of a turbo compressor is called "choke."

Accepted Answer

A) True 
 B)False  True

Question 3

The turbine wheel and shaft assembled with the compressor wheel comprise the ____.

Accepted Answer

A) turbo housing 
B) rotor 
C) splitter blade wheel 
D) radial wheel 
A) turbo housing 
B) rotor 
C) splitter blade wheel 
D) radial wheel B

Question 4

Which of the following is/are true about belt-driven positive displacement blowers?

Accepted Answer

A) Heavy boost blowers use a cogged belt to eliminate slippage. 
B) A cogged blower drive belt takes the place of a vibration damper. 
C) All of the above 
D) None of the above 
A) Heavy boost blowers use a cogged belt to eliminate slippage. 
B) A cogged blower drive belt takes the place of a vibration damper. 
C) All of the above 
D) None of the above

Question 5

Turbochargers are driven by _____.

Accepted Answer

A) belt 
B) coolant flow 
C) exhaust flow 
D) electric 
A) belt 
B) coolant flow 
C) exhaust flow 
D) electric

Question 6

On carbureted engines, a _____ supercharger system pressurizes the air cleaner above the carburetor or fuel injection system.

Accepted Answer

A) flow-through 
B) blow-through 
C) draw-through 
D) pumped-through 
A) flow-through 
B) blow-through 
C) draw-through 
D) pumped-through

Question 7

What is the name of the turbocharger wheel that is on the intake side?

Accepted Answer

The answer of What is the name of the turbocharger...

Question 8

Because cast iron heads dissipate heat better than aluminum, they are the head of choice for use with a supercharger or turbocharger.

Accepted Answer

A) True 
 B)False

Question 9

Technician A says boost differential occurs when pressure is higher in either the turbine or the manifold. Technician B says negative differential is best for performance. Who is correct?

Accepted Answer

A) Technician A 
B) Technician B 
C) Both technicians 
D) Neither technicians 
A) Technician A 
B) Technician B 
C) Both technicians 
D) Neither technicians

Question 10

Types of dynamic superchargers are being discussed. Technician A says the pressure wave is used mostly for two-stroke diesels. Technician B says a centrifugal supercharger is is crankshaft driven, rather than exhaust driven. Who is right?

Accepted Answer

A) Technician A 
B) Technician B 
C) Both technicians 
D) Neither technician 
A) Technician A 
B) Technician B 
C) Both technicians 
D) Neither technician

Question 11

An internal wastegate is plumbed into the exhaust manifold.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is/are true about turbochargers?

Accepted Answer

A) Turbochargers are usually called blowers. 
B) A car with a turbo will not operate as well in high altitude. 
C) Cooling the compressed air from the turbocharger by 100$\degree$F can increase engine power by 10%. 
D) All of the above 
A) Turbochargers are usually called blowers. 
B) A car with a turbo will not operate as well in high altitude. 
C) Cooling the compressed air from the turbocharger by 100$\degree$F can increase engine power by 10%. 
D) All of the above

Question 13

An engine with a turbocharger is a normally aspirated engine.

Accepted Answer

A) True 
 B)False

Question 14

Under high boost, when the throttle plate is closed quickly to decelerate, turbo _________ can occur.

Accepted Answer

The answer of Under high boost, when the throttle plate...

Question 15

Technician A says that if a turbocharger wheel has been rubbing against the housing, the turbocharger must be replaced. Technician B says that a bad turbocharger can cause engine oil consumption. Who is right?

Accepted Answer

A) Technician A 
B) Technician B 
C) Both A and B 
D) Neither A nor B 
A) Technician A 
B) Technician B 
C) Both A and B 
D) Neither A nor B

Question 16

What is turbo lag?

Accepted Answer

Turbo lag is the time it takes

Question 17

Approximately how much more torque and horsepower can a turbocharger provide over a stock normally aspirated engine?

Accepted Answer

The answer of Approximately how much more torque and horsepower...

Question 18

All of the following are true about turbochargers with full-floating bearings EXCEPT:

Accepted Answer

A) Full-floating turbo bearings have oil clearance on both sides. 
B) A defective compressor shaft seal can also cause oil consumption and an intake manifold air leak. 
C) The turbocharger spins at about one-third the shaft rpm of a supercharger. 
D) A normal turbo shaft will feel loose. 
E) A restriction in the oil return can result in oil consumption and smoke. 
A) Full-floating turbo bearings have oil clearance on both sides. 
B) A defective compressor shaft seal can also cause oil consumption and an intake manifold air leak. 
C) The turbocharger spins at about one-third the shaft rpm of a supercharger. 
D) A normal turbo shaft will feel loose. 
E) A restriction in the oil return can result in oil consumption and smoke.

Question 19

Which of the following is a name for the device used to cool supercharged or turbocharged air?

Accepted Answer

A) Intercooler 
B) Charge air cooler 
C) Aftercooler 
D) All of the above 
E) None of the above 
A) Intercooler 
B) Charge air cooler 
C) Aftercooler 
D) All of the above 
E) None of the above

Question 20

Turbo damage by a foreign object is being discussed. Technician A says to look at the valves to determine from which direction the damage came. Technician B says compressor wheel damage results from objects entering the intake stream. Who is correct?

Accepted Answer

A) Technician A 
B) Technician B 
C) Both technicians 
D) Neither technician 
A) Technician A 
B) Technician B 
C) Both technicians 
D) Neither technician

An aftermarket blow-through turbocharger is often easier to fit under the hood. True or False?

The maximum flow capacity of a turbo compressor is called "choke."

The turbine wheel and shaft assembled with the compressor wheel comprise the ____.

Which of the following is/are true about belt-driven positive displacement blowers?

Turbochargers are driven by _____.

On carbureted engines, a _____ supercharger system pressurizes the air cleaner above the carburetor or fuel injection system.

What is the name of the turbocharger wheel that is on the intake side?

Because cast iron heads dissipate heat better than aluminum, they are the head of choice for use with a supercharger or turbocharger.

Technician A says boost differential occurs when pressure is higher in either the turbine or the manifold. Technician B says negative differential is best for performance. Who is correct?

Types of dynamic superchargers are being discussed. Technician A says the pressure wave is used mostly for two-stroke diesels. Technician B says a centrifugal supercharger is is crankshaft driven, rather than exhaust driven. Who is right?

An internal wastegate is plumbed into the exhaust manifold.

Which of the following is/are true about turbochargers?

An engine with a turbocharger is a normally aspirated engine.

Under high boost, when the throttle plate is closed quickly to decelerate, turbo _________ can occur.

Technician A says that if a turbocharger wheel has been rubbing against the housing, the turbocharger must be replaced. Technician B says that a bad turbocharger can cause engine oil consumption. Who is right?

What is turbo lag?

Approximately how much more torque and horsepower can a turbocharger provide over a stock normally aspirated engine?

All of the following are true about turbochargers with full-floating bearings EXCEPT:

Which of the following is a name for the device used to cool supercharged or turbocharged air?

Turbo damage by a foreign object is being discussed. Technician A says to look at the valves to determine from which direction the damage came. Technician B says compressor wheel damage results from objects entering the intake stream. Who is correct?

Engine Operation

Engine Shop Safety

Diagnosing Engine Problems

Engine Removal, Disassembly, Inspection, and In-Chassis Repairs

Cleaning the Engine

Micrometer Practice

Cylinder Head: Parts and Service

Cylinder Head: Springs, Valves, and Valve Sets

Camshafts, Lifters, Timing Belts, and Chains

Cylinder Block: Inspection and Service

Crankshaft, Bearings, and Engine Balancing

Pistons, Rings, and Connecting Rods

Lubrication

Cooling System

Engine Hardware: Fasteners, Thread Repair, and Gaskets

Reassembly and Starting

Engine Breathing: Intake and Exhaust Systems

Producing Power: Valve Timing, Power and Torque Measurement

Filters

Exam 18: Turbochargers and Superchargers

An aftermarket blow-through turbocharger is often easier to fit under the hood. True or False?

The maximum flow capacity of a turbo compressor is called "choke."

The turbine wheel and shaft assembled with the compressor wheel comprise the ____.

Which of the following is/are true about belt-driven positive displacement blowers?

Turbochargers are driven by _____.

On carbureted engines, a _____ supercharger system pressurizes the air cleaner above the carburetor or fuel injection system.

What is the name of the turbocharger wheel that is on the intake side?

Because cast iron heads dissipate heat better than aluminum, they are the head of choice for use with a supercharger or turbocharger.

Technician A says boost differential occurs when pressure is higher in either the turbine or the manifold. Technician B says negative differential is best for performance. Who is correct?

Types of dynamic superchargers are being discussed. Technician A says the pressure wave is used mostly for two-stroke diesels. Technician B says a centrifugal supercharger is is crankshaft driven, rather than exhaust driven. Who is right?

An internal wastegate is plumbed into the exhaust manifold.

Which of the following is/are true about turbochargers?

An engine with a turbocharger is a normally aspirated engine.

Under high boost, when the throttle plate is closed quickly to decelerate, turbo _________ can occur.

Technician A says that if a turbocharger wheel has been rubbing against the housing, the turbocharger must be replaced. Technician B says that a bad turbocharger can cause engine oil consumption. Who is right?

What is turbo lag?

Approximately how much more torque and horsepower can a turbocharger provide over a stock normally aspirated engine?

All of the following are true about turbochargers with full-floating bearings EXCEPT:

Which of the following is a name for the device used to cool supercharged or turbocharged air?

Turbo damage by a foreign object is being discussed. Technician A says to look at the valves to determine from which direction the damage came. Technician B says compressor wheel damage results from objects entering the intake stream. Who is correct?

Engine Operation

Engine Shop Safety

Diagnosing Engine Problems

Engine Removal, Disassembly, Inspection, and In-Chassis Repairs

Cleaning the Engine

Micrometer Practice

Cylinder Head: Parts and Service

Cylinder Head: Springs, Valves, and Valve Sets

Camshafts, Lifters, Timing Belts, and Chains

Cylinder Block: Inspection and Service

Crankshaft, Bearings, and Engine Balancing

Pistons, Rings, and Connecting Rods

Lubrication

Cooling System

Engine Hardware: Fasteners, Thread Repair, and Gaskets

Reassembly and Starting

Engine Breathing: Intake and Exhaust Systems

Producing Power: Valve Timing, Power and Torque Measurement

Filters