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

ABSA 4TH CLASS PART A REVIEW QUESTIONS AND
ANSWERS 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
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
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.
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
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
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
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
a. Double seated valve
The main component of any computer is the:
Select one:
a. Keyboard
b. Screen
c. Memory
d. Central processing unit
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
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
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
c. Transducer
The __________ valve requires specific and routine lubrication.
Select one:
a. Butterfly
b. Globe
c. Check
d. Tapered plug
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.
b. Illustrates a system of vectors
Brass and bronze are alloys of:
Select one:
a. iron
b. copper
c. aluminum
d. lead
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
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
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.
b. To promote uniform requirements among the provinces and territories
Settling ponds and grease traps are methods used to:
Select one:
a. decrease liquid pollution.
b. are part of all liquid treatment facilities.
c. remove solid matter from feedwater.
d. very effective at removing small colloidal particles from effluent.
a. decrease liquid pollution.

, A simple machine is required to raise 1 tonne of stones a vertical distance of
30m. If the efficiency of the pulley is 100%, how much work must be done on the
pulley to raise the stone?
Select one:
a. 294.3 J
b. 30 kJ
c. 35 kJ
d. 294.27 kJ
d. 294.27 kJ
A proportional controller:
Select one:
a. Is also called a multi-position controller
b. Provides a proportional output based on the error between process variable
and set-point
c. Provides on-off control
d. Allows the process variable to always be maintained at the set-point
b. Provides a proportional output based on the error between process variable and set-
point
One of the national standards which each jurisdiction in Canada has adopted as
part of their applicable Act and/or Regulations is the:
Select one:
a. CSA B51
b. ANSI Codes
c. ASME Codes
d. NFPA Codes
a. CSA B51
A steam boiler is blown off intermittently in order to:
Select one:
a. Clean the soot and carbon out of the firebox and tubes
b. Lower the dissolved solids concentration in the boiler water
c. Discharge sediment and scale-forming matter from the boiler
d. Locate the steam level
c. Discharge sediment and scale-forming matter from the boiler
_______ fittings are used to provide proper drainage of water.
Select one:
a. Removable
b. Orifice
c. Eccentric
d. Tapered
c. Eccentric
Which of these is NOT used for burning coal?
Select one:
a. Under feed stoker
b. Rotary cup stoker
c. Cross feed stoker
d. Chain grate stoker