In a right angle triangle, the sine of an acute angle is equal to:
Answer: D
If a right-angle triangle has an angle of 28O 37' and the hypotenuse is 120 mm, the length of the opposite side is:
Answer: B
In the equation 0.004 + D = 0.0042, the value of D is:
Answer: C
As the cosine decreases, the
Any two angles whose sum is 90° are:
Answer: A
One is the trigonometric value of:
A automobile travels at 60 miles per hour. Expressed in metres per second, this would be equivalent to:
The force that is equal in magnitude but opposite in direction to the resultant force is called:
A scalar quantity is one which has only magnitude and can be fully described by:
A body can be put into equilibrium by applying an additional force equal in magnitude but opposite in direction to the:
A displacement of 9 m north of point A, and another of 6 m west of point A can be added to give a resultant displacement from point A of:
Answer: E
The moment of a force about a point is:
When the co-efficient of friction increases and the force between two surfaces remains constant, the friction force will:
A body having a gravitational force of 2000 N, is pulled along a horizontal surface at constant speed by a rope that makes an angle of 20° above the horizontal. If the pull on the rope is 150 N, the coefficient of sliding friction is:
Energy can be:
Velocity ratio is:
A 1 N weight has a kinetic energy of 1 J when its speed is:
The working stress of a material that has an ultimate strength of 490 MPa and a safety factor of 7 would be:
According to Hooke's Law, the stress in an elastic body is directly proportional to the strain if:
The factor of safety is always expressed:
When calculating the ultimate stress of a material, we should:
Safe working stress is determined by:
A 6 m long cantilever beam carries a concentrated load of 45 kN at its free end. What is the shear force at the wall?
When classifying beams, the term simple beam refers to a beam:
The term _____ is used as a measure of the quantity of matter.
A 10 m long steel pipe when heated to increase its temperature by 85 °C, will expand approximately:
The most common scale in use is the:
Four pieces of iron are heated in a furnace to high temperatures. The one at the highest temperature would appear:
The amount of heat required to completely melt 25 kg of ice from a temperature of –10 °C is approximately:
"Heat will flow from a hot substance to a colder substance unaided, but it is impossible for heat to flow from a cold substance to a hotter one without the aid of mechanical work" is:
The heat required to raise the temperature of water at a pressure of 225 kPa from 0 °C to 124 °C is:
When heat is supplied to a liquid in sufficient quantity to change the liquid to a vapour without changing the temperature, the heat supplied is known as:
The dryness fraction of steam at a pressure of 400 kPa and a heat content of 2500 kJ/kg is:
The temperature of saturated steam vapor at 980 kPa is:
Steam engines, steam turbines, gas turbines and internal combustion engines are examples of:
The rate at which heat flow through a slab of a material does not depend on:
Expansion of a gas is said to be adiabatic when expansion takes place at :
If 10 m3 of a gas at a pressure of 20 kPa (gauge) and a temperature of 10 °C are compressed to 5 m3 while the temperature is reduced to –20 °C, the final gauge pressure will be: (Consider the atmospheric pressure to be 95 kPa)
Use of the equation PV = a constant, means the numerical result of pressure times volume for a compression or expansion process will:
A gas occupies 8.62 m3 at 1800 kPa and 26 °C. It is heated until the final volume is 9.0 m3 and pressure is 2500 kPa. the final temperature will be approximately:
H2SO4 is the chemical formula for:
Protons have a mass number of:
A pinch of salt is added to a glass of water. The result is:
Compounds classified as salts may have the following characteristics:
The most common material used in making large industrial diesel engine pistons is:
Malleable cast iron is produced by:
Steam turbine bearings are usually made of:
The most common thread used in North America on fasteners such as bolts, is the:
Orthographic projection means:
The classes of fastening devices are:
(Jurisdictional Question) A Third Class Engineer's Certificate of Competency qualifies the holder to work as a Chief Engineer for a power plant not exceeding:
Answer: D (for Alberta)
(Jurisdictional Question) In Alberta, Boiler and Pressure Vessel Safety is regulated by:
(Jurisdictional Question) A Third Class Certificate of Competency enables the holder to work as a shift Engineer of a power plant not exceeding:
Answer: C (for Alberta)
Safety valves shall be designed to attain full lift at a pressure above set pressure but not exceeding:
A passage way of at least ______ metres in width and clear of all obstructions shall be provided on both sides and the rear of the boiler.
The blow-off tank for a boiler operating at 2200 kPa must have a design pressure of at least:
A hydrostatic test consists of completely filling the boiler with water and the applying a water pressure:
Which of the following equation(s) is/are correct for complete combustion?
The formation of carbon monoxide in the furnace is undesirable because it is:
The advantages of oil over coal as a boiler fuel are:
Complete combustion will take place only when:
The swing check valve:
In order to prevent leakage at low pressure steam flange connections:
Steam separators:
As the temperature of carbon conductors rises, the electrical resistance generally:
The resistance of a conductor does not depend on its:
The total currents away from a point equal:
The power factor of an AC circuit is equal to:
An alternator is rated at 9375 KVA at 0.8 power factor. The actual power delivered will be:
A copper conductor (coefficient of resistance = 0.0039) has a resistance of 4.78 ohms at 60 °C. At 20 °C the resistance would be:
The frequency of a wave having a period of 3 milliseconds is:
What type of electrical supply is used by electrostatic precipitators?
The main opposition to current flow in a motor is:
For DC generators, the nearer to zero the percentage voltage regulation is then:
Which of the following methods is not a means used to start a 3 phase induction motor?
Transformers are cooled by:
The universal series motor:
A centrifugal switch used with an AC motor:
Magnetic fields do not interact with:
Multimeters are sometimes protected by:
Ohmmeters are for:
The photocell, when used in flame failure detection:
A example of an image tube whose function is the generation and display of a light image from an electrical input signal is:
Answer:B
Properly planned maintenance:
A Third Class Chief Engineer should be familiar with the following maintenance management areas:
In Alberta, good housekeeping in a power plant is the responbility of the Chief Engineer as implied by the:
Foundations for machinery are required to:
Limp diaphragms for sensing elements are sometimes made from:
Before making adjustments or altering the fuel-air ratio of a combustion control system, the power engineer should:
In an orifice meter, the vena contracta is the point where the:
The devices which are used to change pneumatic signals to computer signals are known as:
The rotameter is capable of measuring flow using a constant pressure differential and a variable:
Power for operating mechanical cleaning tools used in removing scale or slag from firetube boilers shall be generated:
Which of the following extinguishers would ordinarily be used to combat a Class C fire?
The factors that determine the severity of electrical shock are:
Plant safety committees should be made up of people from:
The purpose of the recovery of the L.P.G. and gasoline process, used in a natural gas treatment plant is to:
A surge tower used in hydro electric generation stations is for:
Natural gas treatment plants remove which of the following from the gas?
Which of the following is not part of a total energy system?
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