Take the engine test

[David G]

There are a few flaky answers, but overall pretty good.

http://www.zoo.com/quiz/car-engine-quiz?mkcpgn=i600001951&utm_source=taboola&utm_medium=paid&utm_campaign=Zoo-CarEngine(RON-desktop)&utm_term=nbcnews&utm_content=Car+Engine+Quiz%21

I got 39 of 40.

 

[old-9]

Most are easy but I got 38 of 40
here

 

[dr sportster]

I don't see getting any of those wrong. I did guess on one. Some questions were wrong ; a catylitic converter does not burn anything.

 

[David G]

Agreed, some of the answers are not EXACTLY correct, have to pick with one is the least incorrect.

 

[Mark-Mi]

Got em all.

 

[big tee]

Never heard of a "flat" engine----Always heard them called opposed. VW---Corvair....

 

[JF in MI]

Got 'em all but loved some of the 'wrong' answers. i.e. 'a typical car electrical system...' may be 12 volts but Emit Brown's Delorean still needs 1.21 gigiwatts.

 

[Robert Major]

Hi 38 out of 40, with the way some of those questions are asked, I'm thinking it's aimed at people that don't change their own oil, and don't have a clue why a car or anything even runs other than you put fuel in it L.O.L.

 

[jacksun65]

40 out of 40 They were worded funny like the one who wrote them was from England.

 

[blue water massey]

ok so 40 out of 40
had to laugh at the battery question
1.21 giga watts were's doc brown
also how many of the younger ones not into older equipment will know what a carb is

 

[old-9]

Yes ,flat is one that got me. Lets see, straight, V, radial, opposed, never heard called flat either. joe

 

[Ozlander]

The one about the location of the overhead cam had three correct answers, depending on engine configuration.

 

[Mike Aylward]

Yes, some of the answers are flaky as are some of the questions. Carburetors are foreign to the younger generation. Mike

 

[mazemeister]

question 5 is wrong (the question, not the answer). The spark plug ignites the fuel/ air mixture during the compression stroke, not power!

 

[Dune Country]

Flat or pancake engine= Subaru

 

[Den N Ms]

5. During the combustion stroke the ____________ ignites the gasoline.

 

[Janicholson]

If the answers are given simplistically, 40 is easy. Some from me: what is dwell? Where do you find a ring land?
Where is the quench zone in a Hemi Head engine? What is the clearance ramp on a flat tappet cam? What is stellite used for? What is babbit? what is overlap? where are teflon buttons found in a racing engine? What is a Crosley engine made out of? what is the spark plug thread size on a Maytag? In what order do the starting valves on a MD open? What is a polyspherical combustion chamber? What two tools are Sunnen famous for? Pistons are not round, why? Name the 8 major moving parts in a 3 cylinder Saab 850? How does one mount a boring bar on a 409? Why are piston pin bosses off center? what are Vega pistons plated with? Why does a Vega engine have a heavy cast iron head? What caused early Chevy V8 engines to accelerate out of control? What is a valve adjusting shim? What engine series is likely to have had the most pistons produced ever? What is an F head engine? What is a cross ram manifold, and what was it used on?
Jim

 

[David G]

Jim,

I am good with most, what did cause early V8 chevy's to accelerate?

Bad Drivers?

 

[Janicholson]

I cant tell you yet, but it was not the driver. Mechanical issue. Jim

 

[onefarmer]

I got 40 of 40. I though most were to easy and some were worded weird, but could answer by deductive reasoning.

 

[Andy C]

Isn't octane the ability to ignite by spark and cetane the ability of fuel to ignite by compression? Question 36

 

[JMOR]

(quoted from post at 15:34:31 04/09/16) Flat or pancake engine= Subaru

RUE! Opposed is where the two piston heads come together. In general the questions are aimed at the type who asks, "do I put the oil in where the cap is labeled 710"? :roll:

 

[NIK OWEN]

NOT TO FORGET ROTARY, AS IN LE RHONE/GNOME, ALSO IN MAZDA, MMMMMMMMMMMMMMMM....

 

[Bill(Wis)]

Heavy acceleration could cause the engine to twist and dislocate thereby messing up throttle linkage. I saw it happen to a Chevrolet coming down off the GW bridge onto I80 West. Light traffic late at night so he accelerated fully and ended up going out of control and hitting the center divider. That's when the engine quit. Fortunately.

 

[David G]

Would that be weak motor mounts?

 

[Bill(Wis)]

Yes. The issue was definitely with the motor mounts. Beyond that, I don't know. It could have been simply that as the engines came out with more power just about every year the same old motor mounts were used when maybe they should have been redesigned or beefed up? It's up to someone else to answer that.

 

[Janicholson]

The mounts were bbonded rubber between two steel plates ( or similar to that) They could break and allow the throttle rod linkage to pull the carb/s wide open. Recalls were used to install a cable across the mount to limit travel if it broke. and later mounte were designed with a metal interlock finger in hole style to prevent extra movement. Jim

 

[4play]

(quoted from post at 17:41:11 04/09/16) Isn't octane the ability to ignite by spark and cetane the ability of fuel to ignite by compression? Question 36

Octane in fuel is added to resist combustion from heat and pressure. lamens term, it slows down the combustion
Cetane in fuel is added to promote combustion from heat and pressure. lamens term, it speeds up the combustion

These questions are basic to me, and if one seemed difficult or tricky then the other answers were obviously wrong.

 

[MDFJ]

(quoted from post at 08:05:40 04/09/16) There are a few flaky answers, but overall pretty good.

http://www.zoo.com/quiz/car-engine-quiz?mkcpgn=i600001951&utm_source=taboola&utm_medium=paid&utm_campaign=Zoo-CarEngine(RON-desktop)&utm_term=nbcnews&utm_content=Car+Engine+Quiz%21

I got 39 of 40.

I got 40/40,
I see what is being said about the questions.

I Have a good one for all of you. I have even stumped teachers on this and diesel instructors.

WHAT DRIVES A TURBO CHARGER TO CREATE BOOST PRESSURE ?? (THIS IS GAS OR DIESEL)

1) EXHAUST GASSES
2) EXHAUST HEAT
3) EXHAUST DENSITY
4) TYPE OF FUEL
5) AIR DENSITY
6) FUEL PRESSURE.

 

[2x4]

pancake engines!

 

[MDFJ]

Cetane is Diesel rating and Octane is gasoline rating

 

[MDFJ]

Can anyone answer the question I posted ?
It is not a trick question and was taught to me in School.
I will tell and explain the answer.

Thanks for the site D.G. I will have my son do it.
Also there was some pop ups of Hydraulic quizzes.
I might look them up to see what they offer.
Maybe I can get a good challenge.

 

[4play]

I Have a good one for all of you. I have even stumped teachers on this and diesel instructors.

WHAT DRIVES A TURBO CHARGER TO CREATE BOOST PRESSURE ?? (THIS IS GAS OR DIESEL)

1) EXHAUST GASSES
2) EXHAUST HEAT
3) EXHAUST DENSITY
4) TYPE OF FUEL
5) AIR DENSITY
6) FUEL PRESSURE.

1 & 2, It is the exhaust gasses that drive the turbine, but heat does play a factor. Kinetic energy of the exhaust gasses spin the turbine and from there a pressure and temp drop occurs across the turbine harnessing the energy (kinetic and heat) from the exhaust gasses. So, if the kinetic energy was not being used then the thermal energy would not be able to turn the turbine, it uses both.

 

[MDFJ]

(quoted from post at 23:38:19 04/09/16)

I Have a good one for all of you. I have even stumped teachers on this and diesel instructors.

WHAT DRIVES A TURBO CHARGER TO CREATE BOOST PRESSURE ?? (THIS IS GAS OR DIESEL)

1) EXHAUST GASSES
2) EXHAUST HEAT
3) EXHAUST DENSITY
4) TYPE OF FUEL
5) AIR DENSITY
6) FUEL PRESSURE.

1 & 2, It is the exhaust gasses that drive the turbine, but heat does play a factor. Kinetic energy of the exhaust gasses spin the turbine and from there a pressure and temp drop occurs across the turbine harnessing the energy (kinetic and heat) from the exhaust gasses. So, if the kinetic energy was not being used then the thermal energy would not be able to turn the turbine, it uses both.

This also True!
The answer is the Exhaust density of Un-Burnt Hydrocarbons.