19. It is important for those servicing equipment to be educated on the types of energy as well as their magnitude, potential hazards, and the method or means to control different types of energy. True False
When an oxygen analyzer is used, the maxi-mum percentage of oxygen generally allowed for an acceptable welding atmosphere is __ 4 percent 1 percent 9 percent 14 percent
How can you test to see if a diagram made usirig digital tools is a construction or just a drawing based on estimation?
Which of the following is not something the coating on a covered electrode provides? alloying elements slag formers argon gas deoxidizers
The most common steering types are? A) Fifth Wheel Steering B) Stub Axle Steering C) Stub axle steering and Fifth wheel steering D) None of the above.
Question: What is the 5th step of coupling tractor- semitrailers? Secure the tractor by putting on the parking brake and putting the transmission in neutral. Check the trailer height and make sure it is low enough that it is raised slightly by the tractor when the tractor is backed under it.
Match each two-stroke engine type listed on the left to its correct description on the right. E Reed inlet valve equiv Cross-flow scavenged A half-circle shaped disk serves as the valve and opens and closes ports as it turns The piston acts as a valve that covers and uncovers all of the ports The deflector directs the intake charge into the upper part of the cylinder The engine has a small, flexible metal plate that cover the inlet port Diameter of upper part of piston smaller than diameter of lower part of piston Design used to direct air/fuel mixture into combustion chamber as it enters the cylinder The air/fuel mixture flows in a single direction in this design E Loop scavenged Stepped piston engine E Rotary inlet valve E Uni-flow scavenged Piston-controlled inlet port
All of the following are typical duties of a chassis technician, EXCEPT: a. Servicing wheel bearings. b. Replacing shock absorbers. c. Inspecting and diagnosing the steering system. d. Replacing water pumps.
What should you do if a pipeline has been exposed to unusual stresses, such as an earthquake? perform a pipeline pressure test conduct a special one-time survey decrease the pressure in the pipeline schedule more frequent patrols
Which non -exothermic connection uses a polyester resin? split bolts conductive epoxy magnetic attachment butt splice
18. When you get done with running a bead on your welder, you should __ A. Turn off the welder B. Remove the electrode from the holder C. Set up your materials for your next pass D. Uncontrollably waive the live holder around your work space
What does a marine pump out station do? Pumps out waste from holding tanks Cleans contaminated fuel tanks Removes water from flooded bilges Controls water flow at a dam
A vertical spill is the toughest to control due to (Select all that apply): You do not know what the material will come in contact with You cannot see where the spill is going It is not easily contained. They are predictable
3 Multiple Choice 1 point In welding detail drawings welding symbols are used to show how the pieces are to be __ cut joined aligned machined Multiple Choice 1 point The main purpose of an assembly drawing is to show how the parts are __ to be used leader line going to appear in three dimensions put together in relation to one another
Resistance welding uses electric current and __ to join metals. continuous electrodes electron beams ionized gas pressure
When surfacing with high-alloy ferrous materials, the abrasion resistance __ and the impact strength __ as the alloy content increases. decreases, decresses decreases, increases increases, decreases increases; increases
Which of the following is a step in edge preparation for ferrous metals? Aligning the edges Cutting or gouging the edge Marking the weld's location Removing nicks and burrs
Which humidifier uses a pad consisting of numerous layers of a tight metallic mesh wetted by water delivered from above? Fixed filter Piezoelectric Plate Vaporizing Question 4 Which humidifier uses a series of porous materials that wick water upward to be evaporated by passing air? Fixed filter Piezoelectric Plate Vaporizing 5
In shielded metal arc welding, the shield is made of alloy metal flux gas oxides
22. Cylinder seals were commonly made from which of the following materials? a. Gold b. Glass c. Bronze d. Limestone
