Ignition System
Fuel System & Internal Combustion
Manual Transmission
(Gear Up!)
Funny Math & Physics Riddles
Funny Famous Idioms
100

Which part delivers the electric spark to start combustion?
a) Fuel injector
b) Brake pedal
c) Spark plug
d) Radiator

c) Spark plug

100

What stores the car’s fuel?
a) Combustion chamber
b) Radiator
c) Fuel tank
d) Spark plug

c) Fuel tank

100

In a manual car, which pedal controls gear engagement?
a) Brake
b) Clutch
c) Accelerator
d) Handbrake

b) Clutch

100

What did the zero say to the eight?
a) “You look infinite!”
b) “Nice belt!”
c) “You're irrational!”
d) “You divided me!”

b) “Nice belt!”

100

What does “Hit the road” mean?
a) Fall on the street
b) Start a journey
c) Accelerate too fast
d) Kick your tire

b) Start a journey

200

What increases the battery voltage to a level high enough to create a spark?
a) Ignition coil
b) Fuel filter
c) Exhaust pipe
d) Turbocharger  

a) Ignition coil

200

What part sprays fuel into the combustion chamber?
a) Ignition coil
b) Fuel injector
c) Camshaft
d) Air filter

b) Fuel injector

200

Why is it generally not recommended to stay in first gear at high speed?
a) It saves fuel
b) It increases torque at high RPM
c) It causes unnecessary engine strain and low efficiency
d) It boosts combustion timing

c) It causes unnecessary engine strain and low efficiency

200

Why can’t you trust atoms?
a) Because they overheat
b) Because they always change gears
c) Because they make up everything
d) Because they explode in engines

c) Because they make up everything

200

What does the idiom “to throw a wrench in the works” mean?

a) To repair something quickly
b) To sabotage or interrupt a plan
c) To improve mechanical efficiency
d) To increase speed unexpectedly

b) To sabotage or interrupt a plan

300

Which of these would most likely prevent the ignition system from working?
a) Worn brake pads
b) Weak battery
c) A defecient spark plug
d) Clean air filter

b) Weak battery

300

Combustion occurs when…
a) Fuel enters the engine
b) Oil lubricates the piston
c) Fuel mixes with air and ignites
d) Battery charges the radiator

c) Fuel mixes with air and ignites

300

What happens if you release the clutch too quickly?
a) The car accelerates smoothly
b) The engine stalls
c) The battery dies
d) The airbag deploys

b) The engine stalls

300

A student throws a ball straight up at 20 m/s. Ignoring air resistance, how fast is it moving at the top of its flight?
a) 10 m/s
b) 0 m/s
c) 5 m/s
d) 20 m/s

b) 0 m/s

300

If someone is “firing on all cylinders,” what does it mean?
a) They're driving a V8 engine
b) They are working at full efficiency
c) They are overheating
d) They are speeding

b) They are working at full efficiency

400

What is the most probable symptom of a faulty ignition switch?
a) Gear slippage
b) No dashboard lights on startup
c) High fuel consumption
d) Radiator overheating

b) No dashboard lights on startup

400

What is a symptom of a clogged fuel injector?
a) Overheating radiator
b) Rough engine idling and misfiring
c) Slippery gears
d) Strong brake pedal

b) Rough engine idling and misfiring

400

Which term describes the engine speed when the clutch is disengaged but the car is stationary?
a) Shifting
b) Freewheeling
c) Idling
d) Locking

c) Idling

400

A mechanic says: “If I divide the number of gears by the square root of torque, I get horsepower.” What’s wrong?
a) Horsepower is calculated differently
b) Gears don’t have numbers
c) Torque is not a root
d) That’s the formula for light speed

a) Horsepower is calculated differently

400

What does “running out of steam” mean?
a) No more fuel
b) Losing energy or motivation
c) Switching to electric power
d) Burning fuel too fast

b) Losing energy or motivation

500

Which sequence best represents the ignition process?
a) Air → Spark → Fuel → Motion
b) Fuel → Spark → Air → Noise
c) Battery → Coil → Spark Plug → Ignition
d) Radiator → Battery → Fuel → Spark Plug

c) Battery → Coil → Spark Plug → Ignition

500

Which type of engine uses compression instead of spark to ignite fuel?
a) Gasoline
b) Hydrogen
c) Diesel
d) Hybrid

c) Diesel

500

Which of the following best explains the function of gear ratios in manual transmission?
a) They heat the engine
b) They adjust air intake
c) They optimize torque for speed or power
d) They measure tire pressure

c) They optimize torque for speed or power

500

Why was the equal sign so humble?
a) Because it had no variables
b) Because it stayed balanced
c) Because it knew it wasn’t greater or less than anyone
d) Because it was negative

c) Because it knew it wasn’t greater or less than anyone

500

What does “to hit the ground running” mean?

a) To start a mission with speed and confidence
b) To fall during a training exercise
c) To warm up before physical activity
d) To move quickly after crashing

a) To start a mission with speed and confidence