What is the main way to establish an electrically safe work condition? A. Contracting the work out B. Having an electrician perform the work C: Implementing a lockout/tagout program D. Using insulated tools only
Effective values for A/C are called RMS values, RMS stands for __ really more sequence root mean sequence resistance means sequential root mean square
It is difficult to get metal parts to fuse properly when welding with a flame that is __ neutral harsh reducing soft
The most satisfactory method of welding sheets and light plates in all positions is __ backhand forehand multilayer fillet
To successfully vent air from a BC: Select one: You need to be in a perfectly vertical position. The exhaust valve you will be using must be the highest point on the air cell. You must activate the BC's overpressure relief valve. None of the above.
Which is the most common boat entry technique for deep water entry on large dive boats? Select one: Backward roll. Controlled-seated entry. Forward roll. Giant stride.
If possible, before attaching your BC to your scuba cylinder,you should: Select one: Inflate it completely. Soak the cam band (tank band) in water. Attach the regulator to the cylinder first. Connect the BC low -pressure inflator hose to the BC.
Technician A says that one advantage of an air conditioner is that the system removes water from the air. Technician B says that air conditioners are needed to remove moisture from the inside of the windshield to meet the mandated defrost time. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B
EPR en un sistema de multiples evaporadores? Cual es la funcion de una valvula 10 puntos Mantener la presion constante en el compresor Evitar que caiga Ia presion en el evaporador por debajo de un valor determinado Corregir la presion por arriba de un valor predeterminado Ninguno
Which item allows you to monitor an input signal independently of any other source that has been connected? Equalizer O Aux Master Solo Track Tape Return
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
