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mga ka sb: asignment to ng pamangkin ko..... ala na kasi ku tym mgsagot... if my masagutan kau kahit isa lang ay malaking tulong na po. hindi namn po ito sapilitn, libangan po sa mga alng magawa. salamat po.
paki highloghts na lng po if may sasagutan kau... tnx.
MATHEMATICS, ENGINEERING ECONOMY AND BASIC SCIENCES SET A
1. A nine sided polygon is called
a. heptagon b. dodecagon c. nonagon d. pentagon
2. Polyhedrons are classified according to the number of
a. sides b. edges c. faces d. vertices
3. A rectangular array of numbers forming m and n column are called
a. matrix b. inverse c. transpose d. determinants
4. A straight line where the curve approaches more and more closely but never touches it except as a limiting position at infinity is called
a. latera recta b. focal chord c. directrix d. asymptote
5. Degenerate conics are obtained when the cutting plane passes through the vertex of the cone. All are the examples of degenerates conics except
a. two intersecting lines b. two coincident lines c. point ellipse d. circle
6. A triangle with no equal sides
a. scalene b. equilateral c. isosceles d. right triangle
7. The point of intersection of all the angle bisectors
a. orthocenter b. incenter c. circumcenter d. centroid
8. Location of maximum moment
a. zero shear b. zero moment c. point of inflection d. maximum deflection
9. If a beam is loaded with a triangular downward load that is increasing, the shear diagram should be
a. concave up b. concave down c. straight slant line d. horizontal line
10. If belt friction, the tight side of the belt is larger than the slack side
a. true b. false c. sometimes d. never
11. The limiting value of frictional force is
a. N b. μN c. f d. W
12. The tangent of the angle of friction
a. N b. μ c. f d. W
13. It represents the distance from the y-axis
a. abcissa b. ordinate c. coordinates d. polar distance
14. The distance of any point to the origin
a. ordinate b. polar distance c. ordinate d. line segment
15. The point (-3, 18) lie on quadrant
a. I b. II c. III d. IV
16. Two figures with the same perimeter
a. isosmeter b. isoperimeter c. isochromatic d. isometric
17. The principal nth root of a negative number is the negative root if n is
a. even b. prime number c. odd d. 3
18. It is a quadrilateral with one pair of parallel sides
a. parallelogram b. rectangle c. rhombus d. trapezoid
19. A polygon whose vertices are found in a circle
a. inscribed polygon b. incenter c. cyclic polygon d. circular polygon
20. A polyhedron of which two faces are equal polygons in parallel planes and the other faces are parallelograms
a. pyramid b. prism c. cubes d. cones
21. Perfectly elastic bodies will have the coefficient of restitution equal to
a. 1 b. 0 c. less than 1 d. more than one
22. It is often called the second moment of area
a. moment of force b. moment of inertia c. section modulus d. modulus of elasticity
23. At the highest point in a projectile path the velocity is
a. zero b. Voy c. Vox d. maximum
24. A body traveling in projectile path the velocity is
a. constant b. independent from time c. zero d. all of these
33. It is the totality of the elements that are involve in the situation
a. null set b. universal set c. empty set d. union set
34. They are numbers that are non-repeating and non-terminating numbers
a. real numbers b. rational numbers c. irrational numbers d. counting numbers
35. Setting the second derivative to zero will give the
a. maximum point b. point of inflection c. concavity of the curve d. minimum point
36. A quadrilateral with four equal sides
a. parallelogram b. rectangle c. trapezoid d. rhombus
37. To determine the other parts of an oblique triangle given all the sides, we have to use the
a. cosine law b. sine law c. Pythagorean theorem d. Heron’s Formula
38. In the formula “s” is the
a. perimeter b. half perimeter c. circumference d. area
39. At a joint subjected to the action of three members with no external load if two are collinear the third member must be
a. unity b. maximum c. zero d. minimum
(Prob. 40 to 45) Given the vertices of a triangle A(-3,6), B(-5,2) and C(3,-6). Determine the following:
40. Find the area of the triangle
a. 24 sq. units b. 12 sq. units c. 48 sq. units d. 36 sq. units
41. Find the length of the altitude of the triangle from vertex B.
a. b. c. d.
42. Find the smallest interior angle of the triangle.
a. 18.43° b. 13.73° c. 17.74° d. 53.13°
43. Find the centroid of the triangle
a. (-5/2, 2/3) b. (-4/3, 2/3) c. (-5/3, 4/3) d. (-5/3, -2/3)
44. Find the equation of the median of the triangle from vertex A.
a. 10x - 2 b. 10X +7y + 2 c. 10x -7y -2 d. none of these
45. Find the midpoint of side AC
a. (-1, 1) b. (3, 1) c. (4,1) d. none of these
46. Forces which pass through a common point are called
a. collinear b. collinear c. concurrent d. parallel
47. Obtained by dividing the differential load dP by the differential area dA over which it acts.
a. strain b. poison ratio c. stress d. deformation
48. Stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation called permanent set.
a. Yield Point b. Elastic limit c. Proportional Limit d. Ultimate Strength
49. Who postulated the stress is proportional to strain
a. Newton b. Hooke c. Galileo d. Archimedes
50. When the temperature increase all materials expands except
a. mercury b. steel c. water d. copper
51. An annuity whereby payment is postponed for a certain period of time.
a. annuity due b. deferred annuity c. ordinary annuity d. perpetuity
52. Actual interest carried by a given principal.
a. nominal interest b. compounded interest c. simple interest d. effective interest
53. Actual interest carried by a given principal.
a. nominal interest b. compounded interest c. simple interest d. effective interest
54. A car is overtaking a trailer uniformly accelerated in speed from 40 kph to 90 kph in 8 seconds. Calculate the distance traveled during the period of acceleration.
a. 144 m b. 146 m c. 150 m d. 152 m
55. The ratio between the average load and total available capacity
a. load factor b. power factor c. capacity factor d. demand factor
56. A 50 mm diameter solid circular shaft was stressed by 40 MPa when transmitting power at 1200 rpm. If G=100 GPa, what is horsepower transmitted?
a. 156.5 b. 165.36 c. 136.55 d. 155.6
57. For economic decision making process in the private sector, economics calculations are made to maximize net benefits to:
a. those who invest in the enterprise and assume the risk
b. those who work as part of the enterprise
c. public
d. the creditors of the enterprise
58. If a certain fund earns an interest of 12% compounded quarterly, what is the effective rate of interest?
a. 12% c. 3% c. 12.55% d. 12.68%
59. What annual expenditure for 10 years is equivalent to spending P1000.00 at the end of second year, P2000.00 at the end of fifth year and P6000.00 at the end of eight year, if the interest is at 12% per year?
a. P813.72 b. P872.13 c. P900.00 d. P825.13
60. A new boiler was installed at a cost of P1.5M and projected to have a zero salvage value at the end of its 10 year life. What is the capitalized cost if interest is 10% per year?
a. P2.44 M b. P6.02 M c. P3.42 M d. P1.02 M
61. If the LPG sphere of shell company has an inside diameter of 15 meters and it could safely be filled 75% of its volume. Compute for the volume of LPG safely be contained in the sphere.
a. 1325 m3 b. 1340 m3 c. 1430 m3 d. 1345 m3
62. The maximum horsepower rating of mechanical works or plant that can be tended or operated by a Certified Plant Mechanic is:
a. 50 hp b. 400 hp c. 300 hp d. 150 hp
63. Which is not a qualification for an applicant for ECE board examination?
a. a holder of BSECE degree c. a Certified Electronics Technician
b. a citizen of the Philippines d. at least 18 years of age
64. What is the water pressure in KPa if a manometer reading is 600 mm Hg and mercury is 13.6 times heavier than water?
a. 72.4 b. 47.2 c. 74.2 d. 27.4
65. 2000 kg of steel containing 8 percent nickel is to be made by mixing a steel containing 14 percent nickel with another containing 6 percent nickel. How much of each is needed.
a. 550 kg; 2000 kg b. 500 kg; 1500 kg c. 600 kg ; 1700 kg d. 200 kg; 1000 kg
66. A wire supporting a pole is fastened to it 20 feet from the ground 15 feet from the pole. Determine the length of the wire and the angle it makes with the pole.
a. 25 feet ; 36.87° b. 38 feet ; 39.8° c. 34 feet; 35.90° d. none of these
67. The integral of cosxdx with respect to x is;
a. –sinx + c b. sinx + c c. cosx + c d. –cosx + c
68. Simplify the expression cosθ (1 + tan2θ)
a. tan2θ b. 1 c. sin2θ d. cos2θ
69. A steam power cycle is modeled by the ideal cycle known as
a. Brayton b. Stirling c. Rankine d. Otto
70. An ideal gas is contained in a rigid container. There is no work of a rotating shaft associated with the container. Any heat transfer is a function of:
a. pressure only b. volume only c. no heat transfer d. temperature only
71. A piston cylinder device provides 8 KJ of work to an external device. Two kg of air are contained inside the cylinder. If the internal energy of the air is increased by 2 KJ/kg during the process, what is the heat transfer in KJ?
a. 12 b. 24 c. 16 d. 20
72. A hoist with a 100 hp engine is capable of lifting a 10000 pounds load at a height of 20 feet in 10 seconds. The efficiency of this machine in % is:
a. 40 b. 36.75 c. 30 d. 32.75
73. A bond whereby the security behind it are the equipment of the issuing corporation.
a. debenture bond b. collateral bond c. mortgage bond d. lien bond
74. A certain specimen is subjected to a load. When the load is removed, the strain disappears. Which of the following can be deduced about this material?
a. it is elastic b. it is not elastic c. it is ductile d. It is brittle
75. Things that can be quantitatively measured or valued such as items of costs and physical assets are:
a. tangibles b. investment c. capital d. intangibles
76. The percentage of capacity of operation of a manufacturing plant at which income will just cover expenses;
a. rate of return b. break even point c. law of diminishing returns d. none of these
77. The ratio of maximum demands of the separate parts of a system and the maximum demand of the entire system is called;
a. demand factor b. load factor c. capacity factor d. diversity factor
78. The government agency who refuses to issue a certificate to any person convicted by court of any criminal offense involving moral turpitude, dishonorable conduct, or to any person of unsound mind;
a. PRC b. IECEP c. Congress d. Senate President
79. How much water must be evaporated from 40 liters of a 15% solution of salt in order to obtain a 20% brine solution.
a. 8 liters b. 2 liters c. 6 liters d. 10 liters
80. What is the probability that the sum of two numbers will at least be nine (9) if a pair of dice is rolled once?
a. 3/18 b. 5/18 c. 7/18 d. 1/3
81. The chemical most commonly used to speed sedimentation of sewage is referred as;
a. lime b. sulfuric acid c. methylene blue d. copper sulfate
82. The gas from sludge digestion tanks is mainly composed of;
a. methane b. nitrogen c. carbon dioxide d. oxygen
83. The ratio of oxygen available to the oxygen required for stabilization of sewage is called;
a. relative stability b. concentration factor c. oxygen-ion content d. all of these
84. Intermittent sand filters are primarily used to;
a. supply fertilizers to farmers b. oxidize putrescible matter c. remove offensive odors d. remove solids
85. The most important factor in determining high temperature behavior of an alloy is;
a. ionization b. dispersion c. composition d. crystallization
86. With regards to corrosion of metals, passivation is the process that;
a. intensifies deterioration c. inhibits further deterioration
b. changes of composition of metals d. all of these
87. A heat engine operating on a Carnot cycle has its intake temperature 157°C and 100°C respectively. Its efficiency is closest to:
a. 12.75% b. 13.25% c. 14.38% d. 16.33%
88. A volume of 400 cc of air is measured at a pressure of 740 mm Hg absolute and a temperature of 18°C. The volume at 760 mm Hg absolute and 0°C is:
a. 366 cc b. 352 cc c. 358 cc d. 369 cc
89. A fuel coal having a heat of combustion of 14,000 BTU/lb is used in a heating plant 50% efficiency, how many pounds of steam of 50% quality and 212°F temperature can be made per pound of this coal from water whose initial temperature is 70°F?
a. 10.9 b. 12.75 c. 11.2 d. 15.3
90. Calculate the horsepower of a boiler that generates 4000 pounds of dry steam per hour with a factor of evaporation of 1.06. The latent heat of steam at 212°F is 970 Btu/lb.
a. 120 b. 123 c. 126 d. 130
91. The installed cost of a refrigeration unit is P250,000.00. It has a salvaged value of P20,000 after an economic life of 10 years. Using straight line depreciation method, what is the book value at the end of 5 years?
a. P135,000.00 b. P125,000.00 c. P200,000.00 d. P130,000.00
92. A mine will have a net annual income of P400,000.00 annually for 15 years. Determine its value if the annual dividend rate is to be 12% payable annually and sinking fund is to accumulate 7% annually.
a. P2,503,213.11 b. P3,456,789.00 c. P2,609,500.35 d. P456,789.00
93. How long will it take for P10,000.00 invested in a bank savings account to double in value if interest is 6% compounded semi-annually?
a. 8 years b. 12 years c. 16 years d. 20 years
94. The value of the property at the end of its economic life is called;
a. scrap value b. book value c. salvage value d. market value
95. A series of uniform amounts over a period of time
a. depreciation b. annuity c. interest d. valuation
96. If P100,000.00 is invested at 12% compounded monthly, the annual interest is nearest to:
a. P1000.00 b. P12,350.00 c. P12,700.00 d. P12,000.00
97. Cost that are difficult to attribute or allocate to a specific output or with activity.
a. indirect cost b. direct cost c. variable cost d. invariable
98. Cost that have been incurred at some past date;
a. fixed costs b. sunk costs c. operation costs d. maintenance costs
99. The annual depreciation charge equals capital recovery with return for an interest rate of;
a. 100% b. zero c. greater than zero d. one
100. The power of a good service to satisfy human wants
a. utility b. producer goods c. value d. consumer goods
paki highloghts na lng po if may sasagutan kau... tnx.
MATHEMATICS, ENGINEERING ECONOMY AND BASIC SCIENCES SET A
1. A nine sided polygon is called
a. heptagon b. dodecagon c. nonagon d. pentagon
2. Polyhedrons are classified according to the number of
a. sides b. edges c. faces d. vertices
3. A rectangular array of numbers forming m and n column are called
a. matrix b. inverse c. transpose d. determinants
4. A straight line where the curve approaches more and more closely but never touches it except as a limiting position at infinity is called
a. latera recta b. focal chord c. directrix d. asymptote
5. Degenerate conics are obtained when the cutting plane passes through the vertex of the cone. All are the examples of degenerates conics except
a. two intersecting lines b. two coincident lines c. point ellipse d. circle
6. A triangle with no equal sides
a. scalene b. equilateral c. isosceles d. right triangle
7. The point of intersection of all the angle bisectors
a. orthocenter b. incenter c. circumcenter d. centroid
8. Location of maximum moment
a. zero shear b. zero moment c. point of inflection d. maximum deflection
9. If a beam is loaded with a triangular downward load that is increasing, the shear diagram should be
a. concave up b. concave down c. straight slant line d. horizontal line
10. If belt friction, the tight side of the belt is larger than the slack side
a. true b. false c. sometimes d. never
11. The limiting value of frictional force is
a. N b. μN c. f d. W
12. The tangent of the angle of friction
a. N b. μ c. f d. W
13. It represents the distance from the y-axis
a. abcissa b. ordinate c. coordinates d. polar distance
14. The distance of any point to the origin
a. ordinate b. polar distance c. ordinate d. line segment
15. The point (-3, 18) lie on quadrant
a. I b. II c. III d. IV
16. Two figures with the same perimeter
a. isosmeter b. isoperimeter c. isochromatic d. isometric
17. The principal nth root of a negative number is the negative root if n is
a. even b. prime number c. odd d. 3
18. It is a quadrilateral with one pair of parallel sides
a. parallelogram b. rectangle c. rhombus d. trapezoid
19. A polygon whose vertices are found in a circle
a. inscribed polygon b. incenter c. cyclic polygon d. circular polygon
20. A polyhedron of which two faces are equal polygons in parallel planes and the other faces are parallelograms
a. pyramid b. prism c. cubes d. cones
21. Perfectly elastic bodies will have the coefficient of restitution equal to
a. 1 b. 0 c. less than 1 d. more than one
22. It is often called the second moment of area
a. moment of force b. moment of inertia c. section modulus d. modulus of elasticity
23. At the highest point in a projectile path the velocity is
a. zero b. Voy c. Vox d. maximum
24. A body traveling in projectile path the velocity is
a. constant b. independent from time c. zero d. all of these
33. It is the totality of the elements that are involve in the situation
a. null set b. universal set c. empty set d. union set
34. They are numbers that are non-repeating and non-terminating numbers
a. real numbers b. rational numbers c. irrational numbers d. counting numbers
35. Setting the second derivative to zero will give the
a. maximum point b. point of inflection c. concavity of the curve d. minimum point
36. A quadrilateral with four equal sides
a. parallelogram b. rectangle c. trapezoid d. rhombus
37. To determine the other parts of an oblique triangle given all the sides, we have to use the
a. cosine law b. sine law c. Pythagorean theorem d. Heron’s Formula
38. In the formula “s” is the
a. perimeter b. half perimeter c. circumference d. area
39. At a joint subjected to the action of three members with no external load if two are collinear the third member must be
a. unity b. maximum c. zero d. minimum
(Prob. 40 to 45) Given the vertices of a triangle A(-3,6), B(-5,2) and C(3,-6). Determine the following:
40. Find the area of the triangle
a. 24 sq. units b. 12 sq. units c. 48 sq. units d. 36 sq. units
41. Find the length of the altitude of the triangle from vertex B.
a. b. c. d.
42. Find the smallest interior angle of the triangle.
a. 18.43° b. 13.73° c. 17.74° d. 53.13°
43. Find the centroid of the triangle
a. (-5/2, 2/3) b. (-4/3, 2/3) c. (-5/3, 4/3) d. (-5/3, -2/3)
44. Find the equation of the median of the triangle from vertex A.
a. 10x - 2 b. 10X +7y + 2 c. 10x -7y -2 d. none of these
45. Find the midpoint of side AC
a. (-1, 1) b. (3, 1) c. (4,1) d. none of these
46. Forces which pass through a common point are called
a. collinear b. collinear c. concurrent d. parallel
47. Obtained by dividing the differential load dP by the differential area dA over which it acts.
a. strain b. poison ratio c. stress d. deformation
48. Stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation called permanent set.
a. Yield Point b. Elastic limit c. Proportional Limit d. Ultimate Strength
49. Who postulated the stress is proportional to strain
a. Newton b. Hooke c. Galileo d. Archimedes
50. When the temperature increase all materials expands except
a. mercury b. steel c. water d. copper
51. An annuity whereby payment is postponed for a certain period of time.
a. annuity due b. deferred annuity c. ordinary annuity d. perpetuity
52. Actual interest carried by a given principal.
a. nominal interest b. compounded interest c. simple interest d. effective interest
53. Actual interest carried by a given principal.
a. nominal interest b. compounded interest c. simple interest d. effective interest
54. A car is overtaking a trailer uniformly accelerated in speed from 40 kph to 90 kph in 8 seconds. Calculate the distance traveled during the period of acceleration.
a. 144 m b. 146 m c. 150 m d. 152 m
55. The ratio between the average load and total available capacity
a. load factor b. power factor c. capacity factor d. demand factor
56. A 50 mm diameter solid circular shaft was stressed by 40 MPa when transmitting power at 1200 rpm. If G=100 GPa, what is horsepower transmitted?
a. 156.5 b. 165.36 c. 136.55 d. 155.6
57. For economic decision making process in the private sector, economics calculations are made to maximize net benefits to:
a. those who invest in the enterprise and assume the risk
b. those who work as part of the enterprise
c. public
d. the creditors of the enterprise
58. If a certain fund earns an interest of 12% compounded quarterly, what is the effective rate of interest?
a. 12% c. 3% c. 12.55% d. 12.68%
59. What annual expenditure for 10 years is equivalent to spending P1000.00 at the end of second year, P2000.00 at the end of fifth year and P6000.00 at the end of eight year, if the interest is at 12% per year?
a. P813.72 b. P872.13 c. P900.00 d. P825.13
60. A new boiler was installed at a cost of P1.5M and projected to have a zero salvage value at the end of its 10 year life. What is the capitalized cost if interest is 10% per year?
a. P2.44 M b. P6.02 M c. P3.42 M d. P1.02 M
61. If the LPG sphere of shell company has an inside diameter of 15 meters and it could safely be filled 75% of its volume. Compute for the volume of LPG safely be contained in the sphere.
a. 1325 m3 b. 1340 m3 c. 1430 m3 d. 1345 m3
62. The maximum horsepower rating of mechanical works or plant that can be tended or operated by a Certified Plant Mechanic is:
a. 50 hp b. 400 hp c. 300 hp d. 150 hp
63. Which is not a qualification for an applicant for ECE board examination?
a. a holder of BSECE degree c. a Certified Electronics Technician
b. a citizen of the Philippines d. at least 18 years of age
64. What is the water pressure in KPa if a manometer reading is 600 mm Hg and mercury is 13.6 times heavier than water?
a. 72.4 b. 47.2 c. 74.2 d. 27.4
65. 2000 kg of steel containing 8 percent nickel is to be made by mixing a steel containing 14 percent nickel with another containing 6 percent nickel. How much of each is needed.
a. 550 kg; 2000 kg b. 500 kg; 1500 kg c. 600 kg ; 1700 kg d. 200 kg; 1000 kg
66. A wire supporting a pole is fastened to it 20 feet from the ground 15 feet from the pole. Determine the length of the wire and the angle it makes with the pole.
a. 25 feet ; 36.87° b. 38 feet ; 39.8° c. 34 feet; 35.90° d. none of these
67. The integral of cosxdx with respect to x is;
a. –sinx + c b. sinx + c c. cosx + c d. –cosx + c
68. Simplify the expression cosθ (1 + tan2θ)
a. tan2θ b. 1 c. sin2θ d. cos2θ
69. A steam power cycle is modeled by the ideal cycle known as
a. Brayton b. Stirling c. Rankine d. Otto
70. An ideal gas is contained in a rigid container. There is no work of a rotating shaft associated with the container. Any heat transfer is a function of:
a. pressure only b. volume only c. no heat transfer d. temperature only
71. A piston cylinder device provides 8 KJ of work to an external device. Two kg of air are contained inside the cylinder. If the internal energy of the air is increased by 2 KJ/kg during the process, what is the heat transfer in KJ?
a. 12 b. 24 c. 16 d. 20
72. A hoist with a 100 hp engine is capable of lifting a 10000 pounds load at a height of 20 feet in 10 seconds. The efficiency of this machine in % is:
a. 40 b. 36.75 c. 30 d. 32.75
73. A bond whereby the security behind it are the equipment of the issuing corporation.
a. debenture bond b. collateral bond c. mortgage bond d. lien bond
74. A certain specimen is subjected to a load. When the load is removed, the strain disappears. Which of the following can be deduced about this material?
a. it is elastic b. it is not elastic c. it is ductile d. It is brittle
75. Things that can be quantitatively measured or valued such as items of costs and physical assets are:
a. tangibles b. investment c. capital d. intangibles
76. The percentage of capacity of operation of a manufacturing plant at which income will just cover expenses;
a. rate of return b. break even point c. law of diminishing returns d. none of these
77. The ratio of maximum demands of the separate parts of a system and the maximum demand of the entire system is called;
a. demand factor b. load factor c. capacity factor d. diversity factor
78. The government agency who refuses to issue a certificate to any person convicted by court of any criminal offense involving moral turpitude, dishonorable conduct, or to any person of unsound mind;
a. PRC b. IECEP c. Congress d. Senate President
79. How much water must be evaporated from 40 liters of a 15% solution of salt in order to obtain a 20% brine solution.
a. 8 liters b. 2 liters c. 6 liters d. 10 liters
80. What is the probability that the sum of two numbers will at least be nine (9) if a pair of dice is rolled once?
a. 3/18 b. 5/18 c. 7/18 d. 1/3
81. The chemical most commonly used to speed sedimentation of sewage is referred as;
a. lime b. sulfuric acid c. methylene blue d. copper sulfate
82. The gas from sludge digestion tanks is mainly composed of;
a. methane b. nitrogen c. carbon dioxide d. oxygen
83. The ratio of oxygen available to the oxygen required for stabilization of sewage is called;
a. relative stability b. concentration factor c. oxygen-ion content d. all of these
84. Intermittent sand filters are primarily used to;
a. supply fertilizers to farmers b. oxidize putrescible matter c. remove offensive odors d. remove solids
85. The most important factor in determining high temperature behavior of an alloy is;
a. ionization b. dispersion c. composition d. crystallization
86. With regards to corrosion of metals, passivation is the process that;
a. intensifies deterioration c. inhibits further deterioration
b. changes of composition of metals d. all of these
87. A heat engine operating on a Carnot cycle has its intake temperature 157°C and 100°C respectively. Its efficiency is closest to:
a. 12.75% b. 13.25% c. 14.38% d. 16.33%
88. A volume of 400 cc of air is measured at a pressure of 740 mm Hg absolute and a temperature of 18°C. The volume at 760 mm Hg absolute and 0°C is:
a. 366 cc b. 352 cc c. 358 cc d. 369 cc
89. A fuel coal having a heat of combustion of 14,000 BTU/lb is used in a heating plant 50% efficiency, how many pounds of steam of 50% quality and 212°F temperature can be made per pound of this coal from water whose initial temperature is 70°F?
a. 10.9 b. 12.75 c. 11.2 d. 15.3
90. Calculate the horsepower of a boiler that generates 4000 pounds of dry steam per hour with a factor of evaporation of 1.06. The latent heat of steam at 212°F is 970 Btu/lb.
a. 120 b. 123 c. 126 d. 130
91. The installed cost of a refrigeration unit is P250,000.00. It has a salvaged value of P20,000 after an economic life of 10 years. Using straight line depreciation method, what is the book value at the end of 5 years?
a. P135,000.00 b. P125,000.00 c. P200,000.00 d. P130,000.00
92. A mine will have a net annual income of P400,000.00 annually for 15 years. Determine its value if the annual dividend rate is to be 12% payable annually and sinking fund is to accumulate 7% annually.
a. P2,503,213.11 b. P3,456,789.00 c. P2,609,500.35 d. P456,789.00
93. How long will it take for P10,000.00 invested in a bank savings account to double in value if interest is 6% compounded semi-annually?
a. 8 years b. 12 years c. 16 years d. 20 years
94. The value of the property at the end of its economic life is called;
a. scrap value b. book value c. salvage value d. market value
95. A series of uniform amounts over a period of time
a. depreciation b. annuity c. interest d. valuation
96. If P100,000.00 is invested at 12% compounded monthly, the annual interest is nearest to:
a. P1000.00 b. P12,350.00 c. P12,700.00 d. P12,000.00
97. Cost that are difficult to attribute or allocate to a specific output or with activity.
a. indirect cost b. direct cost c. variable cost d. invariable
98. Cost that have been incurred at some past date;
a. fixed costs b. sunk costs c. operation costs d. maintenance costs
99. The annual depreciation charge equals capital recovery with return for an interest rate of;
a. 100% b. zero c. greater than zero d. one
100. The power of a good service to satisfy human wants
a. utility b. producer goods c. value d. consumer goods
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) ang sama mo. baka gayahin nya yung sagot. hahaha
