DOWN INFORM OF QUESTIONS AND ANSWERS
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A candidate applying to write a Power Engineer certificate of competency examination must:
A. Undergo mandatory drug testing
B. Hold the next lower class of qualification
C. Pass a criminal records check
D. Pass both written and oral examinations
Correct Answer: B
Rationale:
Progression requires holding the previous certification level as a prerequisite.
A machine lifts a 12 kN load with 4 kN effort over 8 m at 70% efficiency. Load distance is:
A. 0.54 m
B. 3.81 m
C. 1.87 m
D. 0.38 m
Correct Answer: C
Rationale:
Efficiency affects mechanical advantage; solving energy balance gives 1.87 m.
The Mechanical Refrigeration Code is:
A. ASME MRC
B. CSA B51
C. CSA B52
D. ASME Section I
Correct Answer: C
,Rationale:
CSA B52 Mechanical Refrigeration Code governs refrigeration systems in Canada.
Pressure reducing valve station should include:
A. Safety valve on high-pressure side
B. Bypass line, safety valve, pressure gauge on low-pressure side
C. Thermometers only
D. Strainer downstream
Correct Answer: B
Rationale:
Bypass and safety devices ensure controlled and safe operation.
Power dissipated = 1.2 kW at 110 V, current is:
A. 91.666 A
B. 19.006 A
C. 10.91 A
D. 132 A
Correct Answer: C
Rationale:
I = P/V = 1200/110 ≈ 10.91 A.
Inclined U-tube manometer:
A. Measures MPa
B. Mercury only
C. More accurate than U-tube
D. Harder to read
Correct Answer: C
Rationale:
Greater sensitivity improves accuracy.
Double-seated valve:
,A. Good throttling, low actuator force, poor sealing
B. Reverse acting
C. Single seated
D. Direct acting
Correct Answer: A
Rationale:
Balanced design reduces force but leaks slightly.
Main component of a computer is:
A. Keyboard
B. Screen
C. Memory
D. CPU
Correct Answer: D
Rationale:
Central Processing Unit (CPU) executes instructions.
Schedule 40 pipe corresponds to:
A. Welded only
B. Threaded only
C. Extra strong
D. Standard
Correct Answer: D
Rationale:
It is the standard wall thickness classification.
Reducing agent or fuel:
A. Carbon monoxide
B. Metal oxide
C. Hydrogen peroxide
D. Sulphuric acid
Correct Answer: A
, Rationale:
CO acts as a reducing agent in combustion.
Energy conversion device is:
A. Logic device
B. Primary element
C. Transducer
D. Transmitter
Correct Answer: C
Rationale:
A transducer converts energy forms.
Valve requiring lubrication:
A. Butterfly
B. Globe
C. Check
D. Plug
Correct Answer: D
Rationale:
Plug valves require periodic lubrication.
Space diagram represents:
A. Time-vector relation
B. System of vectors
C. Scalar relation
D. Scalars only
Correct Answer: B
Rationale:
Used to show vector systems.
Brass and bronze are alloys of: