Indiana General Knowledge Practice Test

This is our Indiana General Knowledge Practice Quiz and Practice Test compiled of 50 questions each. Each question is worth two points for a total of 100 possible points. A passing score is 80%.

The General Knowledge Practice Quiz reveals the correct answer during each question to help you study for the actual General Knowledge test. The General Knowledge Practice Test doesn’t reveal the correct answers until the test is over.

The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window. It’s that easy.

Press the start button to begin your free General Knowledge Practice Quiz. Good luck!

General Knowledge CDL Practice Quiz

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Congratulations! You have completed the General Knowledge CDL Practice Quiz. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

When driving on a slippery road during the day, how much space should you keep ahead of your truck?

A	The same amount of space you would at night.
B	The same amount of space you would on a dry road.
C	One vehicle length for every 10,000 lb. of gross vehicle weight.
D	More space than is needed for ideal driving conditions.

Question 2

Two things a driver can do to prevent a rollover are, to go slow around turns, and also:

A	keep the cargo as close to the ground as possible.
B	keep two hands firmly planted on the steering wheel at all times.
C	check to make sure that the brakes are properly balanced.
D	downshift into the turn.

Question 3

Why should know the outage needed for the liquids you carry?

A	Because tank baffles are not always legal with outage.
B	Because it's good to know that information.
C	Because some liquids expand more than others when they get warm.
D	Because some of the heaviest liquids don’t need any.

Question 4

The two driving conditions in which you should downshift are:

A	before starting down a hill and before entering a tunnel.
B	before going up a hill and before entering a curve.
C	before starting down a hill and before going up a hill.
D	before starting down a hill and before entering a curve.

Question 5

Your stopping distance will increase by ______, if you double your speed.

A	two times
B	four times
C	three times
D	half

Question 6

A trailer is more likely to swing around when the trailer wheels lock up when:

A	the trailer is empty or lightly loaded.
B	the trailer is being hauled at high speed.
C	the trailer is out of brake adjustment.
D	the trailer is fully loaded or very heavy.

Question 7

The trailer hand valve (also called the trolley valve or Johnson bar) should only be used when:

A	there is ice and snow, to prevent skidding.
B	you will be parked for a short time.
C	testing the trailer brakes after hooking up to a trailer.
D	it is absolutely necessary.

Question 8

A pre-trip inspection should be completed:

A	whenever you stop to refuel.
B	before operating the vehicle.
C	at least once a week.
D	if any problems occurred the last the time the vehicle was operated.

Question 9

Your ______ are the most important way to see the sides and rear of your vehicle.

A	mirrors
B	rear view cameras
C	sunglasses
D	rolled down windows

Question 10

When driving a slow-moving vehicle on a 2-lane highway, you must pull off at the first safe turnout when the number of vehicles behind you is:

A	seven or more.
B	five or more.
C	three or more.
D	none of these.

Question 11

When checking the adjustment on air brakes, slack adjusters should have ______ of travel.

A	one half inch
B	one inch
C	three inches
D	two inches

Question 12

You should make emergency plans when you see a hazard because:

A	you want to have a plan to communicate the risk.
B	it is a federal law.
C	you want to have time to act before it turns into an emergency.
D	you want to avoid doing something all of a sudden.

Question 13

Empty trucks ______.

A	need less space ahead than full trucks
B	require greater stopping distance than full trucks
C	have better traction when stopping than full trucks
D	have the same stopping distance as full trucks

Question 14

Before backing under, when coupling a semi-trailer to your tractor, the trailer is at the right height when:

A	the kingpin is about 1¼ inches above the fifth wheel.
B	the end of the kingpin is at waist level.
C	it will be raised slightly when the tractor is backed under it.
D	the end of the kingpin is even with the top of the fifth wheel.

Question 15

When backing your vehicle, why should you use a helper?

A	To direct traffic away from you.
B	To prevent others from distracting you.
C	To see the blind spots you can't see.
D	To watch for steering errors.

Question 16

The two main causes of tire fires are ______ and ______.

A	poor-quality retreads, under-inflated tires
B	dual tires that touch, hot road surfaces
C	over-heated brakes, under-inflated tires
D	under-inflated tires, dual tires that touch

Question 17

Which of the following fires can be safely extinguished by water?

A	Electrical fire.
B	Grease fire.
C	None of these fires can be safely extinguished by water.
D	Gasoline fire.

Question 18

Which of the following methods should you use to test hydraulic brakes for leaks?

A	Push the brake pedal firmly 5 seconds; listen for leaks.
B	Pump the brake pedal 3 times; push the pedal firmly 5 seconds; the pedal should not move.
C	Move forward slowly and push firmly on the brake pedal.
D	Pump the brake pedal 5 times; push the pedal firmly 3 seconds; the pedal should not move.

Question 19

With regard to safe driving, what does communicating mean?

A	Using your CB radio or cell phone to inform others.
B	Using a helper when backing up.
C	Using turn signals, 4-way flashers, headlights, and the horn.
D	Using hand signals.

Question 20

The braking power of the spring brakes:

A	depends on the service brakes being in adjustment.
B	decreases when the service breaks are hot.
C	is not affected by the condition of the service brakes.
D	increases when the service brakes are hot.

Question 21

Before transporting a sealed load, it is important to check that the:

A	placard numbers match the seal numbers.
B	load is properly secured.
C	seal is authentic.
D	seal is secure.

Question 22

While doing the pre-trip inspection on your vehicle's steering and exhaust system you found the following problems. Which one, if any, should be fixed before you drive the vehicle?

A	Oil on the tie rod.
B	Play in the steering wheel of more than ten degrees (two inches on a 20-inch steering wheel).
C	Too many vertical stacks.
D	Play in the steering wheel of more than five degrees.

Question 23

The minimum tread depth that front tires should have for safety is:

A	4/32-inch in every major groove.
B	5/32-inch in every major groove.
C	2/32-inch in every major groove.
D	3/32-inch in every major groove.

Question 24

The reason placards are used is:

A	to combat terrorism.
B	to avoid mixing hazmat with food.
C	to warn others of hazardous materials.
D	to make your vehicle look official.

Question 25

______ can cause a fire.

A	both loose fuel connections and under inflated tires
B	eating spicy food in the truck cab
C	loose fuel connections
D	under inflated tires

Question 26

How much stopping distance does a light, empty truck require, compared to the same truck fully loaded and heavy?

A	The same amount of stopping distance.
B	Greater stopping distance.
C	It depends on what mood you are in at the time.
D	Shorter stopping distance.

Question 27

If you become sleepy while driving, you should:

A	stop to sleep.
B	turn up the radio.
C	roll down the windows.
D	slap yourself in the face three times.

Question 28

When a coolant container is part of a pressurized system, you can:

A	check the coolant level of a hot engine.
B	use windshield washer fluid as coolant.
C	use only water in the cooling system.
D	safely remove the radiator cap and add coolant while the engine is hot.

Question 29

Serious vehicle skids are usually caused by:

A	bad tires.
B	driving too slow for road conditions.
C	driving too fast for road conditions.
D	poorly adjusted brakes.

Question 30

How many red reflective triangles should be in your vehicle's emergency equipment?

A	A minimum of four.
B	A minimum of two.
C	A minimum of one.
D	A minimum of three.

Question 31

The correct term for a long commercial vehicle's tendency to swing wide on turns is:

A	sidetracking.
B	offtracking.
C	fishtailing.
D	slidetracking.

Question 32

Containerized loads are:

A	exempt from weight limit restrictions.
B	generally used when freight is carried part way by rail or ship.
C	exempt from height restrictions.
D	exempt from hazardous materials restrictions.

Question 33

The most important reason for conducting a pre-trip inspection of your vehicle is:

A	because law enforcement may inspect your vehicle on the road.
B	because it is a requirement for all drivers.
C	to ensure safety for yourself, your passengers, and other drivers.
D	to help ensure the vehicle will make it to your destination.

Question 34

The amount of liquid to load into a tank depends on:

A	the legal weight limits.
B	neither of these.
C	both of these.
D	the weight of the liquid.

Question 35

What happens as a person's Blood Alcohol Concentration (BAC) goes up?

A	The drinker's brain is increasingly affected.
B	Muscle control and coordination are affected.
C	Judgment and self-control are the first to be affected.
D	All of these things happen.

Question 36

You are exiting a highway using an offramp that curves downhill and you are driving a heavy vehicle. What should you do?

A	Downshift after you are in the curve.
B	Nothing, because the posted speed limit for the offramp is usually 10 miles per hour below the safe speed limit for the offramp.
C	Turn on your four-way flashers as you approach the offramp.
D	Slow to a safe speed before the curve.

Question 37

When you are driving at night, you should:

A	roll down your window so that the fresh air will help keep you awake.
B	keep your high beams on at all times.
C	make sure you are driving slow enough so you can stop within the range of your headlights in case of an emergency.
D	drink coffee or other caffeine products to help keep you awake.

Question 38

What three things add up to the total stopping distance for your vehicle?

A	Perception distance, reaction distance, and braking distance.
B	Perception distance, slowing distance, and braking distance.
C	Observation distance, reaction distance, and slowing distance.
D	Perception distance, response distance, and reaction distance.

Question 39

Rust around a lug nut is a sign that:

A	the lug nut is loose.
B	the lug nut is cheap.
C	the lug nut needs to be replaced.
D	the wheel needs cleaning.

Question 40

Due to its size, if your vehicle cannot make a right turn without swinging into another lane, you should ______ to prevent others from passing you on the right.

A	turn wide before you start the turn
B	turn right and drive over the curb
C	turn wide as you complete the turn
D	start the turn, then back up to re-position

Question 41

Any flatbed load must have at least ______ tie downs.

A	two
B	four
C	one
D	three

Question 42

You are operating a new truck with a manual transmission and are about to drive down a long, steep downhill grade? What should you do?

A	Shift the truck into neutral and coast down the hill to save gas.
B	Use a higher gear than you would use to climb the hill.
C	Use the same gear you would use to climb the hill.
D	Use a lower gear than you would use to climb the hill.

Question 43

Whenever you are parked at the side of the road at night, you must do which of the following?

A	Turn on your 4-way emergency flashers to warn other drivers.
B	Warn other drivers by using your left turn signal lights.
C	Keep your low beam lights on.
D	Put your warning devices out within 15 minutes.

Question 44

If your vehicle has a retarder, you should turn it off when:

A	the road is wet, icy, or snow covered.
B	you are driving on hilly, rural roads.
C	road conditions are excellent.
D	you are driving on the freeway.

Question 45

One reason why dry bulk tanks require special care is because:

A	the load can catch fire easily.
B	the load can shift.
C	the load should not get wet.
D	a dry bulk tank should only be filled halfway.

Question 46

Which of the following is considered a hazard?

A	Pedestrians and bicyclists.
B	Road construction zones.
C	All of these are considered a hazard.
D	A stopped transit bus.

Question 47

When loading cargo, what is an important rule to remember?

A	Load more cargo toward the front of the truck for a full load.
B	Load more weight over the drive axle for better traction.
C	Load cargo weight evenly over all the axles.
D	Load cargo toward the rear of the truck for easier unloading.

Question 48

Wheel bearing seals should be checked for ______.

A	rubbing
B	leaks
C	rust
D	burning

Question 49

Two main things to look for up ahead while driving are ______ and ______.

A	tunnels, overpasses
B	truck stops, gas stations
C	law enforcement officers, detours
D	vehicles, traffic signs

Question 50

You know your brakes are fading when:

A	you have to push harder and harder to get the same stopping power on a downgrade.
B	the brake pedal feels firm when you apply pressure.
C	there is a slight vibration when you press down on the brake pedal.
D	you release pressure on the brake pedal and speed increases.

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Remember, the General Knowledge Practice Test doesn’t reveal the correct answers until the test is over. The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window.

Press the start button to begin your free General Knowledge Practice Test. Good luck!

General Knowledge CDL Practice Test

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Congratulations! You have completed the General Knowledge CDL Practice Test. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

You should make emergency plans when you see a hazard because:

A	you want to have a plan to communicate the risk.
B	it is a federal law.
C	you want to have time to act before it turns into an emergency.
D	you want to avoid doing something all of a sudden.

Question 2

If you become sleepy while driving, you should:

A	turn up the radio.
B	roll down the windows.
C	slap yourself in the face three times.
D	stop to sleep.

Question 3

How many red reflective triangles should be in your vehicle's emergency equipment?

A	A minimum of three.
B	A minimum of four.
C	A minimum of one.
D	A minimum of two.

Question 4

Which of the following fires can be safely extinguished by water?

A	Gasoline fire.
B	Grease fire.
C	None of these fires can be safely extinguished by water.
D	Electrical fire.

Question 5

Due to its size, if your vehicle cannot make a right turn without swinging into another lane, you should ______ to prevent others from passing you on the right.

A	start the turn, then back up to re-position
B	turn wide before you start the turn
C	turn right and drive over the curb
D	turn wide as you complete the turn

Question 6

The reason placards are used is:

A	to combat terrorism.
B	to warn others of hazardous materials.
C	to make your vehicle look official.
D	to avoid mixing hazmat with food.

Question 7

The amount of liquid to load into a tank depends on:

A	both of these.
B	the legal weight limits.
C	the weight of the liquid.
D	neither of these.

Question 8

Which of the following is considered a hazard?

A	Road construction zones.
B	A stopped transit bus.
C	Pedestrians and bicyclists.
D	All of these are considered a hazard.

Question 9

Two main things to look for up ahead while driving are ______ and ______.

A	vehicles, traffic signs
B	truck stops, gas stations
C	law enforcement officers, detours
D	tunnels, overpasses

Question 10

What happens as a person's Blood Alcohol Concentration (BAC) goes up?

A	All of these things happen.
B	Muscle control and coordination are affected.
C	Judgment and self-control are the first to be affected.
D	The drinker's brain is increasingly affected.

Question 11

When driving a slow-moving vehicle on a 2-lane highway, you must pull off at the first safe turnout when the number of vehicles behind you is:

A	five or more.
B	seven or more.
C	none of these.
D	three or more.

Question 12

Your ______ are the most important way to see the sides and rear of your vehicle.

A	sunglasses
B	rolled down windows
C	rear view cameras
D	mirrors

Question 13

When driving on a slippery road during the day, how much space should you keep ahead of your truck?

A	One vehicle length for every 10,000 lb. of gross vehicle weight.
B	More space than is needed for ideal driving conditions.
C	The same amount of space you would at night.
D	The same amount of space you would on a dry road.

Question 14

The braking power of the spring brakes:

A	depends on the service brakes being in adjustment.
B	is not affected by the condition of the service brakes.
C	increases when the service brakes are hot.
D	decreases when the service breaks are hot.

Question 15

The two driving conditions in which you should downshift are:

A	before starting down a hill and before entering a curve.
B	before going up a hill and before entering a curve.
C	before starting down a hill and before entering a tunnel.
D	before starting down a hill and before going up a hill.

Question 16

Serious vehicle skids are usually caused by:

A	bad tires.
B	driving too fast for road conditions.
C	poorly adjusted brakes.
D	driving too slow for road conditions.

Question 17

Whenever you are parked at the side of the road at night, you must do which of the following?

A	Turn on your 4-way emergency flashers to warn other drivers.
B	Keep your low beam lights on.
C	Put your warning devices out within 15 minutes.
D	Warn other drivers by using your left turn signal lights.

Question 18

You are operating a new truck with a manual transmission and are about to drive down a long, steep downhill grade? What should you do?

A	Use the same gear you would use to climb the hill.
B	Use a lower gear than you would use to climb the hill.
C	Use a higher gear than you would use to climb the hill.
D	Shift the truck into neutral and coast down the hill to save gas.

Question 19

A trailer is more likely to swing around when the trailer wheels lock up when:

A	the trailer is out of brake adjustment.
B	the trailer is being hauled at high speed.
C	the trailer is fully loaded or very heavy.
D	the trailer is empty or lightly loaded.

Question 20

The trailer hand valve (also called the trolley valve or Johnson bar) should only be used when:

A	there is ice and snow, to prevent skidding.
B	you will be parked for a short time.
C	it is absolutely necessary.
D	testing the trailer brakes after hooking up to a trailer.

Question 21

With regard to safe driving, what does communicating mean?

A	Using your CB radio or cell phone to inform others.
B	Using turn signals, 4-way flashers, headlights, and the horn.
C	Using a helper when backing up.
D	Using hand signals.

Question 22

When you are driving at night, you should:

A	make sure you are driving slow enough so you can stop within the range of your headlights in case of an emergency.
B	drink coffee or other caffeine products to help keep you awake.
C	keep your high beams on at all times.
D	roll down your window so that the fresh air will help keep you awake.

Question 23

The two main causes of tire fires are ______ and ______.

A	over-heated brakes, under-inflated tires
B	under-inflated tires, dual tires that touch
C	poor-quality retreads, under-inflated tires
D	dual tires that touch, hot road surfaces

Question 24

When checking the adjustment on air brakes, slack adjusters should have ______ of travel.

A	one half inch
B	three inches
C	one inch
D	two inches

Question 25

Rust around a lug nut is a sign that:

A	the lug nut is cheap.
B	the lug nut needs to be replaced.
C	the lug nut is loose.
D	the wheel needs cleaning.

Question 26

One reason why dry bulk tanks require special care is because:

A	the load can shift.
B	the load can catch fire easily.
C	a dry bulk tank should only be filled halfway.
D	the load should not get wet.

Question 27

The correct term for a long commercial vehicle's tendency to swing wide on turns is:

A	slidetracking.
B	sidetracking.
C	offtracking.
D	fishtailing.

Question 28

Your stopping distance will increase by ______, if you double your speed.

A	half
B	four times
C	two times
D	three times

Question 29

While doing the pre-trip inspection on your vehicle's steering and exhaust system you found the following problems. Which one, if any, should be fixed before you drive the vehicle?

A	Too many vertical stacks.
B	Oil on the tie rod.
C	Play in the steering wheel of more than ten degrees (two inches on a 20-inch steering wheel).
D	Play in the steering wheel of more than five degrees.

Question 30

Containerized loads are:

A	exempt from weight limit restrictions.
B	exempt from hazardous materials restrictions.
C	generally used when freight is carried part way by rail or ship.
D	exempt from height restrictions.

Question 31

The most important reason for conducting a pre-trip inspection of your vehicle is:

A	because it is a requirement for all drivers.
B	because law enforcement may inspect your vehicle on the road.
C	to ensure safety for yourself, your passengers, and other drivers.
D	to help ensure the vehicle will make it to your destination.

Question 32

Empty trucks ______.

A	require greater stopping distance than full trucks
B	need less space ahead than full trucks
C	have the same stopping distance as full trucks
D	have better traction when stopping than full trucks

Question 33

Which of the following methods should you use to test hydraulic brakes for leaks?

A	Push the brake pedal firmly 5 seconds; listen for leaks.
B	Pump the brake pedal 3 times; push the pedal firmly 5 seconds; the pedal should not move.
C	Move forward slowly and push firmly on the brake pedal.
D	Pump the brake pedal 5 times; push the pedal firmly 3 seconds; the pedal should not move.

Question 34

When backing your vehicle, why should you use a helper?

A	To direct traffic away from you.
B	To prevent others from distracting you.
C	To see the blind spots you can't see.
D	To watch for steering errors.

Question 35

When a coolant container is part of a pressurized system, you can:

A	use only water in the cooling system.
B	check the coolant level of a hot engine.
C	safely remove the radiator cap and add coolant while the engine is hot.
D	use windshield washer fluid as coolant.

Question 36

Before backing under, when coupling a semi-trailer to your tractor, the trailer is at the right height when:

A	the end of the kingpin is at waist level.
B	it will be raised slightly when the tractor is backed under it.
C	the kingpin is about 1¼ inches above the fifth wheel.
D	the end of the kingpin is even with the top of the fifth wheel.

Question 37

Wheel bearing seals should be checked for ______.

A	rust
B	burning
C	rubbing
D	leaks

Question 38

______ can cause a fire.

A	overinflated tires
B	underinflated tires
C	loose fuel connections
D	both loose fuel connections and under inflated tires

Question 39

How much stopping distance does a light, empty truck require, compared to the same truck fully loaded and heavy?

A	The same amount of stopping distance.
B	It depends on what mood you are in at the time.
C	Greater stopping distance.
D	Shorter stopping distance.

Question 40

Why should know the outage needed for the liquids you carry?

A	Because it's good to know that information.
B	Because some liquids expand more than others when they get warm.
C	Because tank baffles are not always legal with outage.
D	Because some of the heaviest liquids don’t need any.

Question 41

You are exiting a highway using an offramp that curves downhill and you are driving a heavy vehicle. What should you do?

A	Turn on your four-way flashers as you approach the offramp.
B	Downshift after you are in the curve.
C	Nothing, because the posted speed limit for the offramp is usually 10 miles per hour below the safe speed limit for the offramp.
D	Slow to a safe speed before the curve.

Question 42

If your vehicle has a retarder, you should turn it off when:

A	you are driving on hilly, rural roads.
B	the road is wet, icy, or snow covered.
C	you are driving on the freeway.
D	road conditions are excellent.

Question 43

Any flatbed load must have at least ______ tie downs.

A	two
B	one
C	four
D	three

Question 44

The minimum tread depth that front tires should have for safety is:

A	3/32-inch in every major groove.
B	2/32-inch in every major groove.
C	5/32-inch in every major groove.
D	4/32-inch in every major groove.

Question 45

Before transporting a sealed load, it is important to check that the:

A	placard numbers match the seal numbers.
B	load is properly secured.
C	seal is secure.
D	seal is authentic.

Question 46

Two things a driver can do to prevent a rollover are, to go slow around turns, and also:

A	keep two hands firmly planted on the steering wheel at all times.
B	keep the cargo as close to the ground as possible.
C	check to make sure that the brakes are properly balanced.
D	downshift into the turn.

Question 47

When loading cargo, what is an important rule to remember?

A	Load more weight over the drive axle for better traction.
B	Load cargo toward the rear of the truck for easier unloading.
C	Load cargo weight evenly over all the axles.
D	Load more cargo toward the front of the truck for a full load.

Question 48

What three things add up to the total stopping distance for your vehicle?

A	Perception distance, response distance, and reaction distance.
B	Perception distance, reaction distance, and braking distance.
C	Perception distance, slowing distance, and braking distance.
D	Observation distance, reaction distance, and slowing distance.

Question 49

You know your brakes are fading when:

A	the brake pedal feels firm when you apply pressure.
B	there is a slight vibration when you press down on the brake pedal.
C	you have to push harder and harder to get the same stopping power on a downgrade.
D	you release pressure on the brake pedal and speed increases.

Question 50

A pre-trip inspection should be completed:

A	at least once a week.
B	if any problems occurred the last the time the vehicle was operated.
C	before operating the vehicle.
D	whenever you stop to refuel.

Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results

There are 50 questions to complete.

←

List

→

Return

Shaded items are complete.

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36	37	38	39	40
41	42	43	44	45
46	47	48	49	50
End

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
21	22	23	24	25
26	27	28	29	30
31	32	33	34	35
36	37	38	39	40
41	42	43	44	45
46	47	48	49	50
End

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
21	22	23	24	25
26	27	28	29	30
31	32	33	34	35
36	37	38	39	40
41	42	43	44	45
46	47	48	49	50
End

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
21	22	23	24	25
26	27	28	29	30
31	32	33	34	35
36	37	38	39	40
41	42	43	44	45
46	47	48	49	50
End

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
21	22	23	24	25
26	27	28	29	30
31	32	33	34	35
36	37	38	39	40
41	42	43	44	45
46	47	48	49	50
End