ABSA Part A Practice Test

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Which reference to scalars and vectors, a space diagram:
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Illustrates the position of the planets and the stars
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illustrates a system of vectors
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shows the relationship of the scalars to the vector
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illustrates a system of scalars
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shows the relationship of time to the vector: B
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2.The flow of heat from molecule to molecule within a substance or f
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rom molecule of one body to those of another body in direct contact
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ywith it is defined as: a. Conduction
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b. Convection
c. Specific heat by

d. Latent heat of fusion by by by

e. Absolute pressure: A by by

3.Water is the best extinguisher for:
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A. An oil fireby by

B. A gas fire
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C. An electrical fire
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D. A wood fire
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E. A metal burning fire: D
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4.The coefficient of friction is defined as:
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A. the downward force on the two services in contact
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B. The force parallel to the surface required to start an object moving
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C. The reaction normal perpendicular to the surface
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D. The force parallel to the service required to keep an object moving
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yat a constant linear velocity
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E. The ratio of the force required to move up body to the: E
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5.To start a body moving which of the following must be overcome?
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A. Kinetic friction by

B. Static friction by

C. Fluid friction by

D. Rolling friction by

E. Normal force: B by by

6.Foam extinguishers are recommended for?
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A. Class A and Class C fires
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B. Class C and Class B fires
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C. Class A and Class B fires
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D. All classes of fires
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E. All but burning liquids: C
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7.A control loop controller
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A. period does not require a set point value
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B. Sends a signal to a primary element
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C. Will always eliminate deviation
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D. Constantly compares input signals to the setpoint
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E. Send signal to the transmitter: D
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8.The ratio between the ultimate strength and the allowable stress is defi
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ned as
by

A. Ultimate stress by

B. Maximum allowable load by by

C. Working stress by

D. Factor of safety by by

E. Elastic limit: D by by

9.Which of the following constitutes a Class C fire?
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A. Fire in an electrical panel
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B. Fire in a fuel tank
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C. Fire in a lumber pile
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D. Fire in a coal bunker
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E. Fire in a pile of paper: A
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10.The greatest load that can be applied to a material under is design c
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ondi- tions is called
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A. Ultimate stress by

B. Elastic limit by

C. Allowable stress by

D. Factor of safety by by

E. Maximum allowable load: E by by by

11.External tensile forces acting parallel but not in line produces:
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A. Tensile stress by

B. Compressive stress by

C. Working stress by

D. Shear stress by

E. Compressive strain: D by by


12.If an object is in motion along a fractional surface in a certain dire
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ction what will be the direction of frictional force exerted on that obje
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ct?
A. Same
B. Opposite
C. Perpendicular
D. Angular with by



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E. Angular against: B
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