ABSA Part A Practice Test Questions With Complete Answers Already Passed!!

ABSA Part A Practice Test Questions With Complete Answers Already Passed!! 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 B 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 as: a. Conduction b. Convection c. Specific heat d. Latent heat of fusion e. Absolute pressure A 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 D 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 E 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 B 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 C 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 D The ratio between the ultimate strength and the allowable stress is defined as A.Ultimate stress B. Maximum allowable load C. Working stress D. Factor of safety E. Elastic limit D Which of the following constitutes a Class C fire? A. Fire in an electrical panel B. Fire in a fuel tank C. Fire in a lumber pile D. Fire in a coal bunker E. Fire in a pile of paper A The greatest load that can be applied to a material under is design conditions is called A. Ultimate stress B. Elastic limit C. Allowable stress D. Factor of safety E. Maximum allowable load E External tensile forces acting parallel but not in line produces: A. Tensile stress B. Compressive stress C. Working stress D. Shear stress E. Compressive strain D If an object is in motion along a fractional surface in a certain direction what will be the direction of frictional force exerted on that object? A. Same B. Opposite C. Perpendicular D. Angular with E. Angular against B Stepper motors have/are: A. Very high speed operation B. Minimum torque when at standstill C. Low reliability D. Slow starting E. Low efficiency E ____________are pieces of slag or tungsten that are trapped in a weld deposit A. Porosity B. Undercut C. Incomplete fusion D. Incomplete penetration E. Inclusions E NDIR Detectors detect: A. CO/CO2 B. SO2 C. NOx D. Relative humidity E. CH4 A Brass is an alloy of A.Copper and bronze B.Copper and lead C. Brass and lead D. Copper and tin E. Copper and zinc E The area under a velocity vs. time graph equal: a. Distance b. Speed c. Acceleration d. Displacement e. Average velocity D A single vector which can replace a system of actors and has the same effect is called a a complainer vector b resultant c concurrent factor D scholar E concentric vector B Which of the following is an advantage of gear drives over belt drives? a overall drive length can be longer b there is no slippage c. gear drives require minimal maintenance d. gear drives are more versatile e. gear drives requires no maintenance B In a Venturi tube blank or more of the upstream pressure is recovered down stream A.80% B. 90% C. 70% D. 100% E. 60% B Ammeters are connected with the negative or black lead connected to the? A. positive side of the circuit B. north pole of the circuit C. Negative side of the circuit D. Switch of the circuit E. Neutral side of the circuit C Any substance which cannot be broken down into other substances or ingredients by chemical means is? A. A mixture B. A compound C. An electron D. An atom E. An element E The periodic table A. Arranges elements in equal numbers of columns and rows B. Arranges elements in descending order of atomic number C. Reflects the similar chemical properties of some elements D. Has 16 distinct groups E. Provides no information besides the chemical symbol of the element C All maintenance work done on portable fire extinguishers is required to be: A. Completed on all extinguishers in the plant at the same time B. Performed at the worksite in case they are required for emergency service C. Contracted out to a certified service company D. Supervised by national fire protection Association employee E. Performed on an as needed basis C The basic unit of thermal dynamic temperature in the S I system is? A. Metre B. Kilograms C. Celsius D. Ampere E. Calvin E The oldest form of welding is? A. Forge welding B. Resistance welding C. Spot welding D. Electric arc welding E. Plasma arc welding A Which of the following is not a scaler quantity? A. Velocity B. Length C. Volume D. Time E. Area A A fourth class engineers certificate of competency qualifies the holder to take charge of a power plant as an assistant shift engineer not exceeding A. 1000 kW B. 10 MW C. 10,000 W D. 1500 kW E. 5000 kW B Brazing is done at a temperature A. Below 450°C B. Above 450°C C. Above 900°C D. Above 1000°C E. Above 1650°C B A supplier label can... A. Have a solid border at certain times B. Be replaced by a workplace label C. Show no more than three symbols D. Be removed at any time E. Never be rectangular B Soldering is done at temperatures... A. Above 450°C B. Below 450°C C. Above 500°C D. Below 650°C E. Below 1650°C B