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
Multiple Choice 20 points What should you do if your electric breaker keeps tripping? Just turn it back on Contact an electrician See if you can fix it yourself Put a penny in it
Valve stem height is most critical on which of these? Select one: A. Non -adjustable solid lifter systems B. Adjustable solid lifter systems C. Adjustable hydraulic lifter systems D. Overhead cam engines
10) What tools are needed to measure $1/2$ T of oil?
air out of the tire? A. If the recommended psi is above the number on the gauge, add air until it reaches the recommended number B. If the recommended psi is below the number on the gauge, let air out until it reaches the recommended number C. If the recommended psi is below the number on the gauge, add air until it reaches the recommended number 3. When should you inflate or let 1 poin D. Inflate the tire until you hear a click and the air compressor stops inflating
An engineering professional must obtain a Master's Degree in engineering from an ABET- accredited program and must adhere to a code of ethics. True False
If door glass falls to operate after installation, the first step is to check electrical connections. A) True B) False
What should the operator do if there are marks from the articulating paper on the sealant after checking the occlusion? a. Remove and replace the sealant b. Remove high spots with finishing burs c. Apply additional sealant to improve coverage d. Apply the curing light for a few additional minutes
Which type of chains sprockets have annular rings? Detachable Roller Pintle Silent
A(n) __ is used in a pulling motion to smooth and shape the floor of the cavity preparation. a. hatchet b. hoe c. chisel d. excavator
Tool Required:Depth Micrometer 19.Which way do you turn the lock nut to engage and disengage the lock on the depth rod and how far does it turn? a. Engage clockwi se/Disengage counterclockwise b. Disengage clockwise/Engage counterclockwise 20.With the lock nut disengaged turn the thimble counterclockwise what happens to the depth rod? a. It retracts b. It extends c. Nothing 21.Turn the thimble clockwise, without returning to "zero" and describe what hap- pens? a. It retracts b. It extends c. Nothing 22.Now do the same thing using the ratchet stop/speeder.Is there a difference in resistance? a. Yes b. No 23.Lock the depth rod with the lock nut and attempt to turn the ratchet stop! speeder. What happens? a. Nothing b. The depth rod moves and the ratchet does not click c. The depth rod moves and the ratchet clicks d. The depth rod does not move and the ratchet clicks 24.Using the ratchet stop/speeder return the micrometer to the "zero position on the sleeve. Is the measuring rod flush with the base? a. Yes b. No 25.Replace the 0 -1" measuring rod with the $1-2''$ measuring rod. Turn the thimble to the "zero" on the sleeve. Does the measuring rod extend out of the base? a. Yes b. No
