ABSA 4B – 1 Questions with Complete Solutions 100% Verified Correct Answers

ABSA 4B – 1 Questions with Complete Solutions 100% Verified Correct Answers R4B An anti-friction bearing: Select one: a. Tapered rollers b. Is a sleeve bearing c. Has rolling friction d. Wears to a smooth, low-friction surface e. Is constructed with white metal alloy - Correct Answer c The amount of water used in an evaporative condenser is only a small percentage of that used in a water-cooled condenser of the same capacity, because Select one: a. Water is scarce where evaporative condensers are used. b. Evaporative condensers spray refrigerated water onto the condensing coil. c. The cooling water evaporates, removing far more heat per kilogram of system coolant. d. Evaporative condensers also use air to cool the refrigerant. - Correct Answer c Infrared heaters send out _____ heat energy in the form of invisible infrared waves that travel in straight lines through the air. Select one: a. Radiant b. Microwave c. Convective d. Conductive - Correct Answer a On a boiler fuel system that has a €œdouble block and bleed€ arrangement: Select one: a. The main SSOVs and the vent valves open at the same time. b. The main SSOVs open before the pre-purge occurs c. The main SSOVs energize when the bleed valve de-energizes. d. The €bleed€ valve is a normally open solenoid valve. - Correct Answer d In a centrifuga