NEW
Font size
WorksheetsESAS 11-2
Total questions: 50
Worksheet time: 25mins
Dual Combustion cycle is used in:
Petrol Engine
Diesel Engine
Steam Engine
Gas Turbine
In a Throttling process
There is no work done
There is no heat transfer
There is no change in enthalpy
All of these
For some interest rate i and some number of interest periods n, the uniform series capital recovery factor is 0.0854 and the sinking fund factor is 0.0404. The interest rate i must be
3.5 percent
4.5 percent
6 percent
8 percent
A 60-inch diameter steel pipe, 3/8 inch thick, carries water under a pressure head of 550 feet. Determine the hoop stress in the steel.
4,760 psi
38,080 psi
9,520 psi
19,040 psi
If two objects have the same momentum, but different masses, which of these is possible?
The one with less mass has more kinetic energy.
The one with more mass requires more impulse to bring it to that momentum from rest.
The same work is done to each to accelerate it from rest.
They each have the same velocity.
The present worth of an obligation of $10,000 due in 10 years if money is worth 9 percent is nearest to
$10,000
$9,000
$7,500
$4,500
The wheel of an automobile spinning at 180 rpm begins to experience a 10 rad/s² angular acceleration. What is the angular velocity of the wheel after 5 seconds?
230 rpm
275 rpm
477 rpm
657 rpm
Which of the following is not a ductile metal?
Aluminum
Copper
Mild Steel
Lead
As a person moves closer to a plane mirror, the size of the image formed by the mirror
Remains the same
Gets larger
Gets smaller
Increases, then decreases
A manufacturing company buys a machine for P500,000. It estimates the machine's useful life is 20 years and that it can then be sold for P50,000. Using straight-line depreciation, what is the annual depreciation charge?
P20,000
P22,500
P25,000
P27,500
What is the new volume of 20 liters of gas at STP which experiences a pressure increase of 2 atm and a temperature increase of 75 degrees?
12.75 liters
25.5 liters
17 liters
8.5 liters
A piece of property is purchased for P100,000 and yields P10,000 yearly profit. If the property is sold after five years, what is the minimum price to break even, with interest at 6 percent?
P50,000
P65,540
P77,430
P83,140
The executive officer of the Board of Electrical Engineering is
PRC Commissioner
Chairman of the Board of EE
Civil Service Commission
IIEE President
The pressure head of an oil of specific gravity 0.75, corresponding to a pressure head of 6 m of water will be:
9 m
4.5 m
8 m
6 m
If the speed of light in a vacuum is c, then the speed of light in a medium with an index of refraction of 2 will be
c/2
2c
c/4
4c
The number of neutrons in an atom with an atomic number of 26 and a mass number of 56 is
26
56
30
82
The radius of gyration of a circular section of diameter d is:
d/2
d/4
d
d/8
Water flows radially outward from a circular shower head through the side of a cylinder 2 mm high and 25 cm in diameter, with an average velocity of 2 m/s. What is the flow rate?
3.14 liters/s
3.41 liters/s
0.314 liters/s
1.0 liters/s
The ozone layer exists primarily in what section of the atmosphere?
Troposphere
Stratosphere
Mesosphere
Ionosphere
The majority of the rocks in the Earth's crust are:
Igneous
Metamorphic
Sedimentary
Basalt
What element is added to copper to make it extremely hard?
Silicon
Aluminum
Lead
Zinc
The maximum bending moment in a simple supported beam of span L and carrying a central concentrated load "W" is
WL
WL/2
WL/4
2WL
An object orbits a star in an elliptical orbit. The distance at aphelion is 2a and the distance at perihelion is a. Determine the ratio of the object's speed at perihelion to that at aphelion.
2
√2
1
4
The most abundant element in the universe is
He
C
H
O
It is the payment for the use of borrowed money.
Load
Interest
Maturity Value
Principal
For an orifice, head above the orifice is 4 m, and Cc = 0.6. Then the actual velocity of flow through the orifice will be:
5.32 m/s
8.96 m/s
12.56 m/s
16.32 m/s
The mass of air in a room 3 x 5 x 20 m is known to be 350 kg. Determine the specific weight.
11.45 N/cu.m.
11.54 N/cu.m.
12.63 N/cu.m.
12.36 N/cu.m.
An electrical engineer wishes to accumulate a total of P10,000,000 in a savings account at the end of 10 years. If the bank pays only 4 percent compounded quarterly, what should be the initial deposit?
P6.76 M
P6.72 M
P6.17 M
P6.18 M
A debt of P10,000 with 10% interest compounded semi-annually is to be amortized by semi-annual payments over the next 5 years. The first due in 6 months. Determine the semi-annual payment.
P1,295.05
P1,264.05
P1,682.80
P1,534.80
The brass wire has a triangular cross-section, 2 mm on a side. If the yield stress for brass is 205 MPa, determine the maximum torque to which it can be subjected so that the wire will not yield.
0.82 N-m
0.082 N-m
0.95 N-m
0.095 N-m
Determine the maximum horsepower a solid steel shaft 50 mm in diameter can transmit at 4 rev/sec if the working stress in shear is 90 MPa.
35.5 kW
64.6 kW
55.3 kW
33.5 kW
A person throws a stone upward at an angle of 30 degrees to the horizontal. It lands 173.2 ft measured horizontally and 6 ft below the person's arm measured vertically. Determine the time of flight.
1.838 s
2.563 s
3.642 s
4.258 s
Determine the elongation in a helical steel spring composed of 20 turns of 20 mm diameter wire on a mean radius of 80 mm when the spring is supporting a load of 2 kN. Use G = 83 GPa.
94.8 mm
98.7 mm
89.6 mm
86.8 mm
A car travels 100 miles to city A in 2 hours, and then travels 200 miles to city B in 3 hours. What is the average speed of the car for the trip?
45 mph
58.3 mph
60 mph
66.7 mph
Determine the maximum deflection of a 3 cm x 24 cm rectangular aluminum beam, 5 m long, if a concentrated load of 800 N acts downward at its midpoint.
0.28 m
0.36 m
0.18 m
0.10 m
The Hooke’s law holds good within
Yield Point
Elastic Limit
Plastic Limit
Euler’s Limit
A force of 40 N is needed to set a 10-kg steel box moving across a wooden floor. The coefficient of static friction is
0.08
0.25
0.4
2.5
The Pauli Exclusion Principle states that
any atoms with a free s orbital can form bonds
no two atoms can occupy the same orbital unless their spins are different
two atoms can occupy the same orbital unless their spins are different
atoms of the same configuration do not change
What mass in grams of solute is needed to prepare 3.50 L of 0.400 M NaOH?
54
56
52
58
The speed with which a liquid escapes from a vessel through an orifice is given by
Archimedes’ Principle
Bernoulli’s Theorem
Torricelli’s Theorem
Flow equation
A refrigerator gives off 3 J of heat for every joule of mechanical energy input. Its coefficient of performance is
1
2
3
4
What is Article II of Code of Ethics for Electrical Engineers?
Relations with Client and Employer
Relations with Fellow Engineers
Professional Life
Penal Provisions
The minimum diameter of a longitudinal bar in a column is
6 mm
8 mm
12 mm
16 mm
RA 7920, Rule 2(o) defining?
IIEE
DECS
CHED
TESDA
Which of the following is the poorest conductor of electricity?
Carbon
Silver
Steel
Aluminum
Who invented the barometer?
Torricelli
Avogadro
Rutherford
Becquerel
Calculate the nitrogen pressure in a mixture of 0.500 mol of oxygen and 0.750 mol of nitrogen with a total pressure of 40.0 kPa.
8 kPa
16 kPa
24 kPa
40 kPa
During polytropic process 10 lb of an ideal gas, whose R= 40 ft-lbf / lbm-deg R and Cp= 0.25 BTU / lb-deg R changes state from 20 psia and 40 deg F to 120 psia and 340 deg F. Determine ΔU.
585.6 BTU
595.5 BTU
750.6 BTU
780.5 BTU
What is the pH of a 0.014 M Ca(OH)₂ solution?
1.55
1.85
12.15
12.45
A metal plate 4.00 mm thick has a temperature difference of 32.0 deg C between its faces. It transmits 200 kcal/h through an area of 5.00 sq. cm. Calculate the thermal conductivity of this metal in W/m-K.
85.5
58.5
68.5
86.5
