True or False? Personal fall protection systems typically include a safety net secured under the work platform of a scaffold.
When welding with the GTAW process, tungsten inclusions can be caused by improper grinding of the electrode. A. True B. False
An engine that has a valve train A Two-stroke B Four-stroke
When checking for proper operation of a low-voltage transformer, what is the first place that should be measured for voltage? at the associated power panel circuit breaker the transformer secondary the transformer primary at the unit power on/off switch
A low-pressure safety control is set to shut down the compressor in the event of refrigerant loss. True False
The airframe of a fixed -wing aircraft consists of five principal units: the fuselage , wings, stabilizers , flight control surfaces , and landing gear. False True
When actuation oil enters the HEUI, which of the following components does it act directly on? nozzle valve fuel pump chamber amplifier piston fuel pressure regulator
How is effective pump stroke managed in a HEUI fuel system? engine control module (ECM) mechanical governor throttle position sensor angle road speed governor programming
What is a unique trait of induction cooktops? Answer A. Glass surface B. Open flames C. Exposed coils D. Magnetic cooking
What type of refrigerant must leave the cylinder as a liquid to prevent the separation of the different components in refrigerant? Azeotropic mixtures Zeotropic mixtures Comlb All refrigerants
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
