Absa 4th Class Part A Review Study Guide Questions And Correct Answers

The purpose of the combustion controls on a boiler is to: Select one: a. Maintain the proper ratio of combustion air to flue gas b. Maintain a constant fuel flow c. Vary the air and fuel ratio with variations in firing rate d. Maintain the proper ratio of air to fuel {Ans: d. Maintain the proper ratio of air to fuel}The main purpose of the Boiler and Pressure Vessel Code is: Select one: a. The promotion of efficient combustion b. To protect life and property c. To promote efficient boiler operation d. To promote qualified training for operators {Ans: b. To protect life and property}Apparent power is the Select one: a. kW of power consumed b. VA supplied to a reactive AC circuit c. Power due to resistance in a circuit d. Power recorded by a kWh meter. {Ans: b. VA supplied to a reactive AC circuit}The filler rod in braze welding is usually made of: Select one: a. Alloy steel b. Brass c. Aluminium d. Bronze {Ans: d. Bronze}If you understand instructions given over a two-way radio, you should respond with Select one: a. "Roger That" b. "Affirmative" c. "Over and Out" d. "Loud and