Absa: 4th Class Part B - Comprehensive Exam 4 Test Updated

Large four-cycle engines are usually lubricated with Select one: a. oil, fed under pressure by a pump b. oil rings c. oil pre-mixed with fuel d. splash lubrication {Ans: a}In order to prevent a rope from untwisting under load: Select one: a. Each end requires whipping b. It has counteracting left-handed and right-handed twists c. It should have thimbles installed on the ends d. It should be moistened {Ans: b}Which one of the following statements about central air conditioning systems is FALSE? Select one: a. Central systems are used in large buildings. b. The central system is able to utilize large central equipment with high efficiency and low initial cost. c. All the major equipment in central systems is located in a central mechanical room in the building. d. Unitary systems can control noise and vibration better than central systems {Ans: d}The _____ tubes of a fired hot oil heater have fins on their outer surfaces. Select one: a. Water b. Radiant c. Extended type d. Fire {Ans: c}"Barking", as it occurs in a pulp mill, means: Select one: a. Cutting the logs into short lengths b. The removal of bark from the logs c. To