ABSA Part A Practice Test | 4th Class Power Engineering | Comprehensive Exam Preparation Questions up-to-date upgrade

ABSA PART A PRACTICE TEST
1. Which reference to scalars and vectors, a space diagram


a. Illustrates the position of the planets and the stars


b. illustrates a system of vectors


c. shows the relationship of the scalars to the vector


d. illustrates a system of scalars


e. shows the relationship of time to the vector

Answer B


2. The flow of heat from molecule to molecule within a substance or from

molecule of one body to those of another body in direct contact with it is

defined asa. Conduction

b. Convection


c. Specific heat


d. Latent heat of fusion



,e. Absolute pressure

Answer A


3. Water is the best extinguisher for


A. An oil fire


B. A gas fire


C. An electrical fire


D. A wood fire


E. A metal burning fire

Answer D


4. The coefficient of friction is defined as


A. the downward force on the two services in contact


B. The force parallel to the surface required to start an object moving


C. The reaction normal perpendicular to the surface


D. The force parallel to the service required to keep an object moving at a

constant linear velocity


,E. The ratio of the force required to move up body to the

Answer E


5. To start a body moving which of the following must be overcome?


A. Kinetic friction


B. Static friction


C. Fluid friction


D. Rolling friction


E. Normal force

Answer B






, 6. Foam extinguishers are recommended for?


A. Class A and Class C fires


B. Class C and Class B fires


C. Class A and Class B fires


D. All classes of fires


E. All but burning liquids

Answer C


7. A control loop controller


A. period does not require a set point value


B. Sends a signal to a primary element


C. Will always eliminate deviation


D. Constantly compares input signals to the setpoint


E. Send signal to the transmitter

Answer D