What causes a fire sprinkler to activate? Heat from a fire expands the liquid in a glass bulb and breaks it, which opens the sprinkler orifice and allows water to flow. Smoke clogs the fire sprinkler orifice and makes water spray out. Someone yells "Fire!" and an audio sensor activates the system. A video-monitoring camera sees fire and activates the system.

Technician A says that hoists should be inspected and certified periodically Technician B says that safety locks do not need to be applied before working under the vehicle, unless you will be working for more than 10 minutes. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

When preheating is needed in the field and shop, common methods used are: Resistance heating Induction heating All of these are used Flame heating

Some important points concerning servicing -rings include: a) Making sure static O-rings roll in their groove b) Cleaning the area of dirt, grit, or metal particles before installation c) Avoiding twisting the O-ring during installation d) Cycling dynamic O-rings several times after installation to allow the ring to rotate and assume a neutral position

__ circuit breakers can be easily identified by their on/off handle. Insulated case Low-voltage power Molded case All of the above

__ necessitate the use of stranded cables in high frequency applications. (Select all that apply.) D a. Eddy currents b. EMF c. Magnetic flux d. Skin effect

The temperature (Fahrenheit) of water in ultrasonic cleaners should be in what range? No set range $130^{\circ }-180^{\circ }$ $90^{\circ }-140^{\circ }$ $100^{\circ }-140^{\circ }$

Technician A says there is no DTC to indicate if a transmitter is in Sleep Made. Technician B says there is no special procedure for sensor wakeup for replacement transmitters. Pressurizing the tire wakes up the transmitter when tire pressure increases at least 6 psig in 30 seconds Who is right? Select the correct option and click NEXT. A only B only Both A and B Neither A nor B

Identify advantages of cotton fibers: good abrasion resistance low resiliency poor colorfastness high shrinkage mildews

Which of these are part of the UA80E Electric Oil Pump used with the Stop and Start system? Select the correct option and click NEXT. Electric Motor Solenoid Piston Solenoid Coil Both 2 and 3

4. What method can be used to quickly and securely fasten the workpiece lead to the surface of a steel article being welded without marring the finished surface? __ 5. Should you choose the largest or smallest -sized electrode holder that can handle the electrode diameter and you will use? Why? __