Trades and Apprenticeship

Which of these engine types operates most smoothly?

Which of these engine types operates most smoothly?

Which of these engine types operates most smoothly?
A) Four cylinder      B) Six cylinder
C) Eight cylinder      D) There is no noticeable difference.

sm.r1   155   2 Replies

sm.r1

Technician A says that the more cylinders an internal combustion engine has, the longer the time ...

Technician A says that the more cylinders an internal combustion engine has, the longer the time ...

Technician A says that the more cylinders an internal combustion engine has, the longer the time period between combustion events. Technician B says that each four-stroke cycle of the internal combustion engine causes the crankshaft to rotate one tim

mzeplin   139   2 Replies

mzeplin

Technician A says that most HEVs use a special hybrid fuel injection system to deliver fuel to the ...

Technician A says that most HEVs use a special hybrid fuel injection system to deliver fuel to the ...

Technician A says that most HEVs use a special hybrid fuel injection system to deliver fuel to the internal combustion engine. Technician B says that HEVs use an ignition system to fire the spark plugs of the internal combustion engine. Which technic

billyd1996   79   1 Reply

Briellec99

Technician A says that variable valve timing improves performance. Technician B says that cylinder ...

Technician A says that variable valve timing improves performance. Technician B says that cylinder ...

Technician A says that variable valve timing improves performance. Technician B says that cylinder deactivation helps improve performance. Which technician is correct?
A) Technician A only      B) Technician B only      C) Both technicians      D) N

MichaelJoult   59   2 Replies

MichaelJoult

Technician A says that all piston pins are offset. Technician B says that offset piston pins ...

Technician A says that all piston pins are offset. Technician B says that offset piston pins ...

Technician A says that all piston pins are offset. Technician B says that offset piston pins increase friction. Which technician is correct?
A) Technician A only      B) Technician B only      C) Both technicians      D) Neither technician

Luikennoah   57   1 Reply

bvgdfdfs3

Technician A says that the Atkinson cycle improves combustion efficiency by leaving the intake valve ...

Technician A says that the Atkinson cycle improves combustion efficiency by leaving the intake valve ...

Technician A says that the Atkinson cycle improves combustion efficiency by leaving the intake valve open longer than normal. Technician B says that this increases the effective compression ratio. Which technician is correct?
A) Technician A only  

emily8694   95   2 Replies

emily8694

Today, there are three hybrid vehicles that use superchargers. A) True B) False

Today, there are three hybrid vehicles that use superchargers. A) True B) False

Today, there are three hybrid vehicles that use superchargers.
A) True
B) False

Meesh1234   56   2 Replies

Meesh1234

The component that connects the piston to the crankshaft is called the ________. A) Connecting ...

The component that connects the piston to the crankshaft is called the ________. A) Connecting ...

The component that connects the piston to the crankshaft is called the ________.
A) Connecting rod      B) Pushrod      C) Bearing shaft      D) None of these

Josh   48   1 Reply

maxinemathis

During a complete combustion cycle in a four-cycle engine, the crankshaft revolves how many ...

During a complete combustion cycle in a four-cycle engine, the crankshaft revolves how many ...

During a complete combustion cycle in a four-cycle engine, the crankshaft revolves how many degrees?
A) 360      B) 240      C) 720      D) 180

skiddd   65   1 Reply

abood

During one stroke in a four-cycle engine, the crankshaft revolves how many degrees?

During one stroke in a four-cycle engine, the crankshaft revolves how many degrees?

During one stroke in a four-cycle engine, the crankshaft revolves how many degrees?
A) 240      B) 360      C) 720      D) 180

mattkat1010   61   3 Replies

lauram25

When a engine is operating leaner than 14.7:1 lambda will be ________. A) ETC controlled B) ...

When a engine is operating leaner than 14.7:1 lambda will be ________. A) ETC controlled B) ...

When a engine is operating leaner than 14.7:1 lambda will be ________.
A) ETC controlled      B) Closed      C) More than 1.00      D) Less than 1.00

MsCorrine   131   2 Replies

MsCorrine

If a wide band oxygen sensor is used, it may be called a ________. A) Linear air-fuel sensor ...

If a wide band oxygen sensor is used, it may be called a ________. A) Linear air-fuel sensor ...

If a wide band oxygen sensor is used, it may be called a ________.
A) Linear air-fuel sensor       B) Lean air-fuel sensor
C) Wide-band oxygen sensor      D) All of the above

csaxton   271   1 Reply

Securo

What type of ignition system is used on hybrid electric vehicle gasoline engines?

What type of ignition system is used on hybrid electric vehicle gasoline engines?

What type of ignition system is used on hybrid electric vehicle gasoline engines?
A) Distributor-type system with electronic control      B) Compression sensing ignition
C) Coil-on-plug system      D) Waste spark

rvahey   69   2 Replies

rvahey

One key way to improve fuel economy is to reduce pumping losses. Which method is used in many ...

One key way to improve fuel economy is to reduce pumping losses. Which method is used in many ...

One key way to improve fuel economy is to reduce pumping losses. Which method is used in many hybrids to reduce pumping losses?
A) Use electronic throttle control (ETC)      B) Use variable valve timing
C) Use the Atkinson cycle      D) All of the

aswizzlebizzle   80   2 Replies

aswizzlebizzle

An offset crankshaft is used to ________. A) Improve power output of the engine B) Reduce ...

An offset crankshaft is used to ________. A) Improve power output of the engine B) Reduce ...

An offset crankshaft is used to ________.
A) Improve power output of the engine
B) Reduce engine noise
C) Improve fuel economy by reducing internal engine friction
D) All of the above

A.Jay   65   3 Replies

lheck874

A wide band oxygen sensor is used to ________. A) Help the engine meet achieve ultra-low emission ...

A wide band oxygen sensor is used to ________. A) Help the engine meet achieve ultra-low emission ...

A wide band oxygen sensor is used to ________.
A) Help the engine meet achieve ultra-low emission vehicle (ULEV) rating
B) Help improve fuel economy by allowing the engine to operate at a lean air-fuel ratio
C) Help the engine achieve a super ultr

wwashington2   130   2 Replies

wwashington2

The Atkinson cycle engine design ________. A) Operates differently than the normal four stoke ...

The Atkinson cycle engine design ________. A) Operates differently than the normal four stoke ...

The Atkinson cycle engine design ________.
A) Operates differently than the normal four stoke cycle gasoline engine
B) Requires special fuel and oil designed for this type of engine
C) Uses the same four stroke cycle but delays the closing of the

demerska   77   2 Replies

demerska

Hybrid electric vehicle gasoline engines often use what systems to achieve maximum fuel ...

Hybrid electric vehicle gasoline engines often use what systems to achieve maximum fuel ...

Hybrid electric vehicle gasoline engines often use what systems to achieve maximum fuel economy?
A) Returnless fuel delivery system      B) Variable valve timing
C) Wideband oxygen sensors      D) All of the above

DJSkopes   77   2 Replies

DJSkopes

Horsepower can also be expressed in units of ________. A) Foot-pounds per minute B) ...

Horsepower can also be expressed in units of ________. A) Foot-pounds per minute B) ...

Horsepower can also be expressed in units of ________.
A) Foot-pounds per minute      B) Pound-feet per second
C) Pound-feet      D) Foot-pounds

jboutdy   137   2 Replies

jboutdy

Brake horsepower is calculated using which of the following?

Brake horsepower is calculated using which of the following?

Brake horsepower is calculated using which of the following?
A) Torque times RPM       B) Stroke times bore times 3300
C) 2  times stroke      D) Torque times RPM divided by 5252

stfajar   66   1 Reply

atree1157

A hybrid electric vehicle (HEV) gasoline engine usually uses what viscosity of engine oil?

A hybrid electric vehicle (HEV) gasoline engine usually uses what viscosity of engine oil?

A hybrid electric vehicle (HEV) gasoline engine usually uses what viscosity of engine oil?
A) SAE 10 W-30      B) SAE 0W-20      C) SAE 20W-50      D) SAE 5W-30

felipebelt   122   2 Replies

felipebelt

Which is a characteristic of many hybrid electric vehicle (HEV) gasoline engines?

Which is a characteristic of many hybrid electric vehicle (HEV) gasoline engines?

Which is a characteristic of many hybrid electric vehicle (HEV) gasoline engines?
A) Smaller displacement      B) Variable valve timing and/or displacement
C) Offset Crankshaft      D) All of the above

redesace90   151   2 Replies

redesace90

Technician A says that nitrous oxide (N2O) is considered a greenhouse gas. Technician B says that ...

Technician A says that nitrous oxide (N2O) is considered a greenhouse gas. Technician B says that ...

Technician A says that nitrous oxide (N2O) is considered a greenhouse gas. Technician B says that methane (CH4) is considered a greenhouse gas. Which technician is correct?
A) Technician A only      B) Technician B only      C) Both technicians    

radiants   66   2 Replies

radiants

In what year was the Kyoto Protocol established?

In what year was the Kyoto Protocol established?

In what year was the Kyoto Protocol established?
A) 1997      B) 2004      C) 1984      D) 1970

DJSkopes   50   1 Reply

cityboi

Which UV radiation is best absorbed by the earth's ozone layer?

Which UV radiation is best absorbed by the earth's ozone layer?

Which UV radiation is best absorbed by the earth's ozone layer?
A) UVA       B) UVC
C) UVB      D) None of these is correct

Milestonee   38   2 Replies

Milestonee

The newest CARB rating system as of January 1, 2004 is known as ________. A) LEV II B) Tier ...

The newest CARB rating system as of January 1, 2004 is known as ________. A) LEV II B) Tier ...

The newest CARB rating system as of January 1, 2004 is known as ________.
A) LEV II       B) Tier 1      C) Both A and B      D) Neither A nor B

drake34   41   1 Reply

okaythisisreal2

Which of these describes cleaner operating vehicles?

Which of these describes cleaner operating vehicles?

Which of these describes cleaner operating vehicles?
A) ZEV      B) Lower Bin numbers      C) Both A and B      D) Neither A nor B

hello there   31   1 Reply

juice9979

Technician A says that formaldehyde can cause cancer. Technician B says that oxides of nitrogen are ...

Technician A says that formaldehyde can cause cancer. Technician B says that oxides of nitrogen are ...

Technician A says that formaldehyde can cause cancer. Technician B says that oxides of nitrogen are converted by living plants into oxygen. Which technician is correct?
A) Technician A only      B) Technician B only      C) Both technicians      D)

pri   37   2 Replies

pri

Which statement is true about hydrocarbons?

Which statement is true about hydrocarbons?

Which statement is true about hydrocarbons?
A) Unburned fuel can be classified as hydrocarbons      B) They contribute to the formation of smog
C) Both A and B      D) Neither A nor B

frenchtoast   49   2 Replies

frenchtoast

Which of the following is true of carbon-based fuels?

Which of the following is true of carbon-based fuels?

Which of the following is true of carbon-based fuels?
A) They produce CO2 and other unwanted byproducts during combustion
B) They are limited to the remains of dead plants and animals
C) Both A and B
D) Neither A nor B

matarata   23   2 Replies

matarata

Technician A says that the process by which plants release oxygen is called photosynthesis. ...

Technician A says that the process by which plants release oxygen is called photosynthesis. ...

Technician A says that the process by which plants release oxygen is called photosynthesis. Technician B says that the process by which plants release oxygen is called organic reaction. Which technician is correct?
A) Technician A only      B) Techn

NegativePanda   41   1 Reply

hello5197

Which federal agency regulates automobile emissions in the United States?

Which federal agency regulates automobile emissions in the United States?

Which federal agency regulates automobile emissions in the United States?
A) DOT      B) USPS       C) EPA       D) FBI

thomas3333   53   2 Replies

thomas3333

Technician A says that muriatic acid is a major component in acid rain. Technician B says that ...

Technician A says that muriatic acid is a major component in acid rain. Technician B says that ...

Technician A says that muriatic acid is a major component in acid rain. Technician B says that sulfuric acid is a major component in acid rain. Which technician is correct?
A) Technician A only      B) Technician B only      C) Both technicians    

Ace_AZ   188   1 Reply

Mamu06

Which of these is NOT an ozone depleting substance?

Which of these is NOT an ozone depleting substance?

Which of these is NOT an ozone depleting substance?
A) Chloroflurocarbon      B) Hydrochloroflurocarbon
C) Halon      D) Nitrogen

bgottlieb410   27   2 Replies

bgottlieb410

Technician A says that burning of fossil fuels has increased the greenhouse gas CO2 in the ...

Technician A says that burning of fossil fuels has increased the greenhouse gas CO2 in the ...

Technician A says that burning of fossil fuels has increased the greenhouse gas CO2 in the atmosphere. Technician B says that increased lumber operations have removed trees, increasing the levels of CO2 in the atmosphere. Which technician is correct?

nuttyprof   91   3 Replies

lmuniz

Which of these is NOT a greenhouse gas?

Which of these is NOT a greenhouse gas?

Which of these is NOT a greenhouse gas?
A) Methane      B) Carbon dioxide
C) Nitrous Oxide      D) All of these are greenhouse gasses

Prenella10   67   1 Reply

andrew.khimz

Technician A says that ozone can be helpful because it blocks harmful UV rays. Technician B says ...

Technician A says that ozone can be helpful because it blocks harmful UV rays. Technician B says ...

Technician A says that ozone can be helpful because it blocks harmful UV rays. Technician B says that ground-level ozone can be irritating in strong concentrations. Which technician is correct?
A) Technician A only      B) Technician B only      C)

Laurenrees98   16   2 Replies

Laurenrees98

In what year was the Clean Air Act established?

In what year was the Clean Air Act established?

In what year was the Clean Air Act established?
A) 1974      B) 1900      C) 1969      D) 1970

mattkat1010   41   1 Reply

destiny_singer

The supply of fossil-based fuels on earth is limitless. A) True B) False

The supply of fossil-based fuels on earth is limitless. A) True B) False

The supply of fossil-based fuels on earth is limitless.
A) True
B) False

ccanez   31   3 Replies

sharycec

Propane contains how many carbon atoms?

Propane contains how many carbon atoms?

Propane contains how many carbon atoms?
A) Two      B) One       C) Three       D) Four

carlocarlo   16   2 Replies

carlocarlo