1. What is the final drive train ratio of a car with a 23 tooth pinion, an 84 spur and a transmission ratio of 2.25?

(A) 1.62 to 1
(B) 858.7
(C) 0.822 to 1
(D) 8.22 to 1

2. What size allen key is used on a Losi 4-40 flat head screw?

(A) 3/32 inch
(B) 2 mm
(C) 0.050 inch
(D) 1/16 inch

3. What carb adjustment do you make to increase low speed power while keeping engine temperature the same?

(A) Lean out the bottom end valve
(B) Lean out the top end valve
(C) Richen the top end valve and lean out the bottom end valve
(D) Increase the Nitro content of your fuel

4. Which brush produces the most power?

(A) Soft copper
(B) Hard copper
(C) Soft silver
(D) Hard silver

5. What is the voltage, per cell of a 7.2 volt RC car battery?

(A) 7.2 volts
(B) 2000 mah
(C) 1.5 volts
(D) 1.2 volts

6. What happens when you reduce the weight of your clutch shoes?

(A) The clutch will not engage
(B) The clutch engages at a lower RPM
(C) The clutch engages at a higher RPM
(D) The weight of the clutch has no effect of performance

7. How should a differential be set?

(A) It should slip while the car moves 1 to 2 feet
(B) It should never slip, that is what slippers do!
(C) It should be locked to offer positive drive
(D) It should only slip when track conditions are slippery

8. Pushing down spring collars to compress a shock spring does what?

(A) Raises the cars ride height only
(B) Increases the rate of the spring
(C) Is equivalent to running a thicker shock oil
(D) Is equivalent to running a thinner shock oil

9. All high end needle valves should be pre-set at 2 1/2 turns out to start?

(A) True
(B) False
(C) True if you are using 20% Nitro fuel
(D) True for motors with tuned pipes

10. Charging your battery at a higher current does what?

(A) Increases the charge time
(B) Increases the battery run time
(C) Increases the average voltage of the battery
(D) Eliminates the memory of the battery

Copyright 1998 - 2000.  Sirace Services, all rights reserved.