ABSA 4TH CLASS PART A REVIEW Qs & As RATED 100% CORRECT

ABSA 4TH CLASS PART A REVIEW Qs & As RATED 100% CORRECT When applying to write a Power Engineer certificate of competency examination, the candidate must: Select one: a. Undergo mandatory drug testing b. Hold the next lower class of qualification c. Pass a criminal records check d. Pass both a written and oral examination -Answer-b. Hold the next lower class of qualification A machine lifts a load of 12kN with an applied effort of 4kN. What distance will the load move if the effort moves a distance of 8m and the efficiency of the machine is 70%? Select one: a. 0.54 m b. 3.81 m c. 1.87 m d. 0.38 m -Answer-c. 1.87 m Which of these is the "Mechanical Refrigeration Code"? Select one: a. ASME MRC b. CSA B51. c. CSA B52. d. ASME Section I. -Answer-c. CSA B52. In order to ensure safe and continuous operation of a pressure reducing valve, the valve station should have _________________. Select one: a. A safety valve on the high-pressure side b. A bypass line, plus a safety valve and pressure gauge on the low-pressure side c. Thermometers on the inlet and outlet piping d. A strainer immediately downstream of the valve -Answer-b. A bypass line, plus a safety valve and pressure gauge on the low-pressure side If the power dissipated by a resistor is 1.2 kW when supplied with 110 V, the amperage will be _____ A. Select one: a. 91.666 b. 19.006 c. 10.91 d. 132 -Answer-c. 10.91 The inclined "U" tube manometer: Select one: a. Will measure pressure in MPa b. Can only be used with mercury c. Is more accurate than the "U" tube manometer d. Is more difficult to read than the U-tube manometer -Answer-c. Is more accurate than the "U" tube manometer A valve which gives good throttling action, takes less actuator force, but does not seal well is a: Select one: a. Double seated valve b. Reverse acting valve c. Single seated valve d. Direct acting valve -Answer-a. Double seated valve The main component of any computer is the: Select one: a. Keyboard b. Screen c. Memory d. Central processing unit -Answer-d. Central processing unit In most sizes of pipe, Schedule 40 corresponds to _____ wall thickness. Select one: a. Welded only b. Threaded only c. Extra strong (XS) d. Standard -Answer-d. Standard A reducing agent or fuel could be: Select one: a. Carbon monoxide b. A heavy metal oxide c. Hydrogen peroxide d. Concentrated Sulphuric acid -Answer-a. Carbon monoxide A control device which will change one form of energy into another form of energy is the: Select one: a. Logic device b. Primary element c. Transducer d. Transmitter -Answer-c. Transducer The __________ valve requires specific and routine lubrication. Select one: a. Butterfly b. Globe c. Check d. Tapered plug -Answer-d. Tapered plug With reference to scalars and vectors, a space diagram: Select one: a. Shows the relationship of time to the vector. b. Illustrates a system of vectors. c. Shows the relationship of the scalar to the vector. d. Illustrates a system of scalars. -Answer-b. Illustrates a system of vectors Brass and bronze are alloys of: Select one: a. iron b. copper c. aluminum d. lead -Answer-b. copper PLC's for Burner Management Systems can: Select one: a. Have limited field configurations b. Be used without any field testing c. Be set up by technicians at burner repair companies d. Be programmed by operators -Answer-a. Have limited field configurations Which is the workers responsibility? Select one: a. Co-operating with others on workplace safety and health b. Issuing proper safety equipment to all workers c. Clearly stated goals and objectives of the health and safety program d. Clearly defined roles and responsibilities for management, workers, contractors, and visitors at the plant site -Answer-a. Co-operating with others on workplace safety and health What is one of the two main purposes of the CSA B-52 code? Select one: a. (b) & (d) b. To promote uniform requirements among the provinces and territories c. Terms and equipment relating to refrigeration and air conditioning equipment are defined. d. The various classifications of buildings and occupancies are listed and described with examples of each classification given. -Answer-b. To promote uniform requirements among the provinces and territories Settling ponds and grease traps are