P.T.C. - Heavy Equipment Operations Multiple Choice Test (Module 3)

1. The only use for a tractor on a construction site is for pulling trailers.

a. True
b. False

2. Rigid frame dump trucks are used for _____.

a. on-road hauling
b. loads up to about 40 tons
c. loads up to 300 tons
d. sites with a tight turning radius

3. The machine shown in Figure 1 is a _____.

a. roller compactor
b. tractor
c. wheel dozer
d. wheel loader

4. Which of these machines is equipped with stabilizers?

a. Dozer
b. Backhoe loader
c. Roller compactor
d. Motor grader

5. Which of these machines would most likely be used to dig a trench for electrical and cable TV lines?

a. wheel loader
b. dozer
c. backhoe loader
d. scraper

6. The machine shown in Figure 2 is a(n) _____.

a. skid steer loader
b. backhoe loader
c. excavator
d. motor grader

7. The machine shown in Figure 3 is a(n) _____.

a. scraper
b. motor grader
c. excavator
d. skid steer loader

8. The machine shown in Figure 4 is a _____.

a. scraper
b. loader
c. dozer
d. motor grader

9. Which of the following is a common use of a dozer?

a. Remove stumps
b. Haul heavy loads
c. Transport materials
d. Load trucks

10. The attachment used on a dozer to loosen hard packed soil is a(n) _____.

a. ripper
b. auger
c. tool carrier
d. rock hammer

11. In a gasoline engine, a(n) _____ is introduced to cause an explosion of the fuel and air mixture.

a. lubricant
b. agitator
c. electrical spark
d. temperature actuator

12. In a diesel engine, _____ causes an explosion of the fuel and air mixture.

a. the lubricant
b. an agitator
c. an electrical spark
d. high pressure

13. Diesel engine fuel is delivered under high pressure directly into the combustion cylinder by a _____.

a. turbocharger
b. crankshaft
c. mechanical actuator
d. fuel injection pump

14. When working on a cooling system, the operator should _____.

a. allow the system to cool before adding coolant
b. add cold water before depressurizing
c. add coolant before depressurizing the system
d. remove the radiator cap to allow the system to depressurize

15. A torque converter replaces a conventional _____ system.

a. hydraulic control
b. clutch
c. electronic control
d. power brake