Quiz about ST2054

Question 1

What is the chemical formula of ammonia?

Accepted Answer

NH3

Answer

NH4

Answer

N2H3

Answer

N3H2

Question 2

It is a quantity which measures the resistance of the mass to being revolved about the line

Accepted Answer

Moment of inertia

Answer

Modulus of elasticity

Answer

Strain

Answer

Stress

Question 3

What is the empirical formula for C2H6?

Accepted Answer

CH3

Answer

C2H

Answer

CH2

Answer

C3H2

Question 4

What do you call an overload condition that occurs near large concentrated loads?

Accepted Answer

Load buckling

Answer

Web crippling

Answer

Vertical buckling

Answer

Lateral buckling

Question 5

What do you call the relative stiffness when more than one spring or resisting member shares the load?

Accepted Answer

Rigidness

Answer

Volumetric expansion

Answer

Stiffness

Answer

Shear modulus

Question 6

Maximum distance for support of rigid metallic conduits.

Accepted Answer

3000 mm

Answer

2000 mm

Answer

2500 mm

Answer

3500 mm

Question 7

The maximum diameter of a steel ground electrode is

Accepted Answer

16 mm

Answer

10 mm

Answer

12 mm

Answer

14 mm

Question 8

Which of the following moment occurs when the shear is zero?

Accepted Answer

Maximum moment

Answer

Statistical moment

Answer

One-way moment

Answer

Resisting moment

Question 9

Which one will occur whenever there is a discontinuity or non-uniformity in an object?

Accepted Answer

Stress concentrations

Answer

Stress riser

Answer

Principal stresses

Answer

Combined stresses

Question 10

Any pair of equal, opposite and parallel forces constitutes which of the following?

Accepted Answer

Couple

Answer

torque

Answer

Moment

Answer

Dead load

Question 11

Which of the following forces can a pinned support hold?

Accepted Answer

Both horizontal and vertical forces simultaneously

Answer

Only horizontal forces

Answer

Only vertical forces

Answer

Either vertical or horizontal forces but not both

Question 12

What is a substance that speeds up a chemical reaction without itself undergoing a chemical change?

Accepted Answer

Catalyts

Answer

Ingredients

Answer

Reactants

Answer

Solvent

Question 13

What is the property of a body that tends to return to its original size or shape after a deformation and when the deforming forces have been removed?

Accepted Answer

Elasticity

Answer

Malleability

Answer

Ductility

Answer

Plasticity

Question 14

For any point in a loaded specimen, a plane can be found when the shear stress is zero. How do you call the normal stresses associated with this plane?

Accepted Answer

Principal stresses

Answer

Combined stresses

Answer

Extreme stresses

Answer

Loading stresses

Question 15

Which of the following refers to the number of reactions or members that would have to be removed in order to make the structure statically determinate?

Accepted Answer

Degree of indeterminacy

Answer

Degree of accuracy

Answer

Degree of rigidity

Answer

Degree of structure

Question 16

In EPIRA what does OARC stands for?

Accepted Answer

Open Access and Retail Competition

Answer

Open Access and Retail Competitors

Answer

Open Access and Retailing Competitors

Answer

Open Access and Retailing Competition

Question 17

When all forces are acting on the same point, the force system is known as ______

Accepted Answer

Concurrent force system

Answer

Collinear force system

Answer

Coplanar force system

Answer

Parallel force system

Question 18

A software that is commonly known as firmware?

Accepted Answer

BIO5

Answer

O5

Answer

Cache Memory

Answer

IO

Question 19

The change in length per degree rise in temperature

Accepted Answer

Linear expansivity

Answer

Volume expansivity

Answer

Ideal gas temperature

Answer

Temperature scale

Question 20

Wrist is the maximum lighting load required by PEC for an office measuring 20 m by 26 m?

Accepted Answer

14,000 VA

Answer

6,000 VA

Answer

7,000 VA

Answer

12,000 VA

Question 21

What is the risk in operating a restaurant?

Accepted Answer

safe

Answer

neutral

Answer

ambivelant

Answer

risky

Question 22

What do you call the stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation?

Accepted Answer

Elastic limit

Answer

Yield strength

Answer

Yield limit

Answer

Proportional limit

Question 23

What is the factor name of the formula (1+l)n?

Accepted Answer

Single payment present worth

Answer

Uniform Gradient Future Worth

Answer

Capital recovery

Answer

Single payment compound amount

Question 24

Which of the following refers to the amount of force required to cause a unit of deformation?

Accepted Answer

Stiffness

Answer

Rigidity

Answer

Modulus

Answer

Strain

Question 25

What do you call the greatest stress which the material is capable of withstanding without a deviation from acceptable stress to strain?

Accepted Answer

Proportional Limit

Answer

Yield strength

Answer

Elastic limit

Answer

Ultimate strength

Question 26

At what point is the applied force minimal in opening a hinge door?

Accepted Answer

farthest the hinge

Answer

near the hinge

Answer

at the center

Answer

anywhere

Question 27

What do you call negative guage pressure?

Accepted Answer

vacuum

Answer

negative gage

Answer

negative vacuum

Answer

pressure head

Question 28

Which of the following theorems stated on how the total moment is derived from a number of forces acting simultaneously at a point?

Accepted Answer

Varignon's theorem

Answer

Maxwell's theorem

Answer

Hooke's Law

Answer

Superposition Theorem

Question 29

Which of the following is a simple three-dimensonal truss which consists of three axial members?

Accepted Answer

Tripod

Answer

Chords

Answer

End posts

Answer

Panels

Question 30

Common cause of failure of termination of cable?

Accepted Answer

penciling of insulation

Answer

splicing

Answer

clearances

Answer

none of these

Question 31

What is the sum of the strains in the three coordinate directions?

Accepted Answer

Dilation

Answer

Strain

Answer

Stress

Answer

Poisson's ratio

Question 32

Which of the following refers to the stress at failure?

Accepted Answer

Rupture strength

Answer

Working stress

Answer

Allowable stress

Answer

Ultimate strength

Question 33

If a load is applied through the centroid of a tension or compression member's section, what type of loading is it?

Accepted Answer

Axial loading

Answer

Local loading

Answer

Neutral loading

Answer

Eccentric loading

Question 34

Which of the following refers to the ratio of the unit lateral deformation to the unit longitudinal deformation?

Accepted Answer

Poisson ratio

Answer

Mohr's ratio

Answer

Young's ratio

Answer

Slenderness ratio

Question 35

What is the ratio of stress to strain below the proportional limit?

Accepted Answer

Young's modulus

Answer

Poisson ratio

Answer

Hooke's constant

Answer

Modulus of rigidity

Question 36

In the linear elastic region of the stress-strain diagram, what do you call the slope of the curve?

Accepted Answer

Modulus of elasticity

Answer

Elastic limit

Answer

Ultimate strength

Answer

Proportional limit

Question 37

In bending of a rectangular beam due to axial loading, where is the location of maximum shear stress?

Accepted Answer

At the neutral axis

Answer

At the top edge

Answer

At the bottom edge

Answer

At the location between the top edge and the neutral axis

Question 38

Two equal forces act on a body. F1 being due north F2 due east. To have a net force of zero, at what direction should F3 act?

Accepted Answer

SW

Answer

SE

Answer

NE

Answer

NW

Question 39

What refers to the elongation which is expressed on a fractional or percentage basis?

Accepted Answer

Strain

Answer

Normal stress

Answer

Thermal elongation

Answer

Modulus of rigidity

Question 40

What is the highest ordinate of the stress-strain diagram?

Accepted Answer

Ultimate strength

Answer

Rapture strength

Answer

Yield strength

Answer

Elastic strength

Question 41

Which of the following beams has two or more spans (i.e, three or more supports) and is statistically indeterminate?

Accepted Answer

Continuous beam

Answer

Cantilever beam

Answer

Propped beam

Answer

Fixed-end beam

Question 42

A specimen is subjected to a load. When the load is removed, the strain disappears. Which of the following statements is correct?

Accepted Answer

The specimen is elastic

Answer

The specimen is plastic

Answer

The specimen has a high modulus of elasticity

Answer

The specimen is ductile

Question 43

What do you call a simple mechanical machine with the ability to increase an applied force?

Accepted Answer

Lever

Answer

Bearing

Answer

Shaft

Answer

Spring

Question 44

What is another term for modulus of elasticity

Accepted Answer

Young's modulud

Answer

Bulk modulus

Answer

Shear strain

Answer

Constant of elongation

Question 45

The amount of interal strain in a tension member can be calculated using

Accepted Answer

poisson's ratio

Answer

the bulk modulus

Answer

the yield stress

Answer

Hooke's law

Question 46

The twisting moment of a shaft is ______ directly proportional to horsepower and ______ proportional to the speed.

Accepted Answer

directly, inversely

Answer

inversely, inversely

Answer

directly, directly

Answer

inversely, directly

Question 47

It is the price a buyer is willing to pay a willing seller for the stock

Accepted Answer

Market value

Answer

Bond Value

Answer

Scrap Value

Answer

Stock Value

Question 48

What do you call a set of pin-connected axial members?

Accepted Answer

Truss

Answer

Gable end

Answer

Structural cell

Answer

Trestie

Question 49

Which of the following is true about a beam supported at both ends and carrying a uniformly distributed load?

Accepted Answer

It has its maximum shear at the supports

Answer

It has uniform shear throughout the length of the beam

Answer

It has its maximum shear at the center of the beam

Answer

It has its maximum bending moment at the supports

Question 50

What force system combines the non-concurrent, non-parallel and non-coplanar forces?

Accepted Answer

General three-dimensional system

Answer

Polar force system

Answer

Space force system

Answer

Parallel force system

Question 51

Which one of the choices below refers to an overload condition that occurs when a long, unsupported members rolls out of its normal plane?

Accepted Answer

Lateral buckling

Answer

Web crippling

Answer

Local buckling

Answer

Vertical buckling

Question 52

The minimum size of a copper equipment grounding conductor required for equipment connected to 40 Ampere circuit.

Accepted Answer

5.5 sq.mm.

Answer

8.0 sq.mm.

Answer

14 sq.mm.

Answer

22 sq.mm.

Question 53

Which of the following factors are used to account for the non-uniform stress distribution?

Accepted Answer

Stress concentration factors

Answer

Principal stress factors

Answer

Combined stress factors

Answer

Mohr's factor

Question 54

For shear stress, what is the constant of proportionality?

Accepted Answer

Shear modulus

Answer

Shark modulus

Answer

Shape modulus

Answer

Shout modulus

Question 55

Which of the following stresses has an area parallel to the force?

Accepted Answer

Shear stress

Answer

Normal stress

Answer

Flexural stress

Answer

Longitudinal stress

Question 56

A single grounding electrodes is permitted when the resistance to ground does not exceed

Accepted Answer

25 ohms

Answer

5 ohms

Answer

10 ohms

Answer

15 ohms

Question 57

If an object is continuously loaded over a portion of its length, it is subjected to which type of loading?

Accepted Answer

Distributed load

Answer

Dead load

Answer

Concentrated load

Answer

Moving load

Question 58

What is the ratio of the ultimate stress to the allowable stress?

Accepted Answer

Factor of safety

Answer

Yield factor

Answer

Safety stress

Answer

Design factor

Question 59

The most important element that controls the physical properties of steel is

Accepted Answer

Carbon

Answer

Silicon

Answer

Tungsten

Answer

Manganese

Question 60

The sum of the individual forces in a linear force system is called:

Accepted Answer

Equivalent resultant force

Answer

Total force

Answer

Axial force

Answer

Concentrated force

Question 61

It is the internal resisting moment of a beam. It is opposite in the sense to the bending moment but of the same magnitude.

Accepted Answer

Moment of resistance

Answer

Strain

Answer

Elastic limit

Answer

Modulus of elasticity

Question 62

To prevent translation while permitting rotation, a structure must be added with:

Accepted Answer

Hinge

Answer

Rivet

Answer

Bearing

Answer

Roller

Question 63

What property of an element is determined by the number of protons in its nucleus?

Accepted Answer

Atomic number

Answer

Atomic weight

Answer

Isotopes

Answer

Atomic mass unit

Question 64

Gross profit, sales less cost of goods sold, as a percentage of sales is called.

Accepted Answer

profit margin

Answer

ROI ratio

Answer

gross margin

Answer

price earnings

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