Which of the following statements is true about the use of grounding electrodes? A ground rod is required to serve as the grounding electrode for the service as well as for equipment supplied by the service. A ground rod is permitted to serve in place of the equipment grounding conductor so long as it has 8 ft in contact with the earth.

If sprinklers are installed $9'-6''$ above the floor, then the protective caps __ Select one: a. can be removed immediately before installation b. can be removed immediately after installation c. cannot be removed until the system is put in service d. can be removed immediately after installation only if the sprinklers are upright.

Match each type to its correct description. Prompts moves when ECM alters polarity within the coil windings controlled by ECM using duty cycle opens and closes according to engine temperature turns either on or off with a vacuum or electrical signal Answers $\square $ Select match stepper motor IAC thermo idle speed control solenoid idle speed control

The most common loads requiring simple and complex control are __ electric motors lights computers HVAC components

Which of the following is/are true about intake and exhaust valves? a. Exhaust valves are larger than intake valves. b. Intake valves run at cooler temperatures than exhaust valves. C. Both A and B. d. Neither Anor B.

Why does the F-150 air dam that deploy automatically at certain speeds? A) To cool the engine B) To stabilize the vehicle C) To reduce drag D) All of the answers are correct

The acronym for computer software that combines CAD and CAM systems in production is $\square $ C Need help? Review these concept resources. B. Read About the Concept

While flying over an extensive mountain range in your Robinson $R22$ helicopter, you suddenly notice black smoke billowing from the control panel. What will you do? Try to land as calmly as possible Jump out Try to land as quickly as possible Sit back and accept my fate

question A new system addition to the building is tied into the existing system mains using a rolling offset.The rolling offset consists of two flanged $22\frac {1}{2}^{\circ }$ ells and a diagonal pipe assembly. The main pipe size is 6".The new main location is $1'$ higher and offset 2 horizontally from the existing main. The center-to center measurement of the offset pipe assembly is __ Round decimals to three places.Round all fractions to the nearest $\frac {1}{8}th$ Refer to the appendix for fitting takeouts and allowances. Select one: a. $5'-10\frac {1}{8}''$ b. $5'-2\frac {5}{8}''$ C. . $6'$ d. $9'-10\frac {1}{8}''$ e. $8'$

Select the choice that best answers the following question. What is a stud? a) Afastener that is threaded on one end and has a hex or square head on the other end b) Afastener that is threaded on both ends c) Afastener that is threaded along its entire length d) A two-piece fastener that consists of a headed, parallel-shank pin with a serrated end and collar

Select the choice that best completes the following statement. A plate or tube that secures the pipe in place is known as a: a) Pipe clamp b) Pipe strap c) Pipe roller d) Pipe bracket III