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WorksheetsESAS 5-2
Total questions: 50
Worksheet time: 25mins
A byte is composed of how many bits?
2
4
6
8
What percentage of the human body will float in fresh water? Average density of human body is 980 kg/cu. m.
98
2
96
4
A gas in the atmosphere that traps sun’s UV rays.
oxygen
helium
ozone
water vapour
Adiabatic process is?
no heat transfer
reversible
irreversible
constant pressure
P 5,000 will become how much after one year at a simple interest rate of 15%?
P 5,850.00
P 5,750.00
P 5,980.00
P 5,680.00
The equipment grounding conductor of a branch circuit shall be identified by what color?
Green
Black
White
Gray
In bathtub and shower areas no part of cord-connected fixtures, hanging fixtures, lighting track, pendants, or ceiling-suspended (paddle) fans shall be located within a zone measured ___ horizontally and ___ vertically from the top of the bathtub rim or shower stall threshold.
1000 mm, 3000 mm
600 mm, 3000 mm
900 mm, 2400 mm
800 mm, 2500 mm
What is the maximum operating temperature of type UF conductor?
75 deg C
90 deg C
60 deg C
110 deg C
Find the present worth with a total interest of P 5,000 after two years at a simple interest rate of 6.25%.
P 35,000
P 25,000
P 50,000
P 40,000
Find the future amount of P 12,000 after 12 years with an interest rate of 9% compounded annually.
P 33,752
P 34,896
P 32,649
P 31,625
Find the future amount of P 12,000 after 12 years with an interest rate of 9% compounded semi-annually.
P 33,272
P 34,426
P 34,512
P 36,186
What is temperature in deg C of 2 liters of water at 30 deg C after 500 calories of heat have been added?
35.70
38
30.25
39.75
A light passes from glass to water. If the index of refraction for glass is 1.54 and for water is 1.33, compute the critical angle for this light to pass the glass.
59.7 deg
45.8 deg
67.4 deg
50.9 deg
What is the corresponding rate of interest for 18% simple discount rate?
20.85%
23.72%
22.64%
21.95%
Structural steel elements subjected to torsion develop
tensile stress
compressive stress
shearing stress
bending stress
A 300-g object slides 80 cm along a horizontal tabletop. How much work is done in overcoming friction between the object and the table if the coefficient of kinetic friction is 0.200?
+0.74 J
-0.74 J
+0.47 J
-0.47 J
Compute the rotational KE of a 25-kg wheel rotating at 6.0 rev/s if the radius of gyration of the wheel is 22 cm.
0.68 kJ
0.86 kJ
0.93 kJ
0.39 kJ
The chief source of energy in the world today is
coal
oil
natural gas
uranium
Which element is present in all organic compounds?
oxygen
carbon
nitrogen
phosphorous
A substance that, when added to a solution, makes changing the pH of the solution more difficult.
catalyst
solute
solvent
butter
An object that has momentum must also have
acceleration
impulse
kinetic energy
potential energy
At the highest or lowest point of the moment diagram
maximum shear occur
shear is zero
maximum moment is twice the shear
shear is negative
An asset is purchased for P120,000.00. Its estimated life is 10 years, after which it will be sold for P12,000.00. Find the depreciation for the second year using the sum-of-the-years-digit method.
P18,400
P18,200
P17,673
P17,763
The chemical shorthand name for molybdenum is
Mo
Mb
Md
Mn
Formula for magnesium Nitrite
Mg₂(NO₂)
MgNO₂
Mg(NO₂)₂
Mg₂(NO₃)₂
A force causing a rise of liquid in tubes of small diameter.
cohesion
surface tension
capillarity
adhesion
In RA 9136, what is SGC stands for
Successor Generating Company
Successor Generation Company
Special Generating Company
Special Generation Company
In RA 9136, what is CREM stands for
Competitive Retail Electricity Market
Competitor Retail Electricity Market
Competitive Retail Energy Market
Competitor Retail Energy Market
During the takeoff roll, a Boeing 747 jumbo jet is accelerating at 4 m/sec². If it requires 40 sec to reach takeoff speed, determine the takeoff speed.
110 m/sec
120 m/sec
140 m/sec
160 m/sec
If $10,000 is borrowed now at 6% interest, how much will remain to be paid after a $3,000 payment is made four years from now?
$9,625
$9,725
$9,400
$9,835
A Carnot engine operates between reservoirs at 20 deg C and 200 deg C. If 10 kW of power is produced, the rejected heat rate is nearest:
26.3 kJ/s
20.2 kJ/s
16.3 kJ/s
12 kJ/s
Calculate the molarity of a solution of a 0.0150 mol of NaCl in 50.0 g of water if the solution has a density of 1.02 g/mL.
0.306 M
0.301 M
0.603 M
0.103 M
Article II of Code of Ethics for Electrical Engineers contains:
SEC. 1 to 8
SEC. 1 to 7
SEC. 1 to 6
SEC. 1 to 9
Article IV, Rule IV - Requirements for examination as a REE
14
15
16
17
A man paid a 10% downpayment of P2,000,000 for a house and lot and agreed to pay the balance on monthly installments for 5 years at an interest rate of 15% compounded monthly. What is the monthly installment in pesos?
44,528.34
42,821.87
43,625.92
45,825.65
An automobile traveling at a speed of 30 mph accelerates uniformly to a speed of 60 mph in 10 sec. How far does the automobile travel during the time of acceleration?
880 ft
660 ft
770 ft
990 ft
During an isentropic expansion of air, the volume triples. If the initial temperature is 200 deg. C, find T₂ in deg. C.
32
28
16
8
If the pressure in a tank of oil (sp. gr. = 0.80) is 400 kPa, what is the equivalent head in meters of water?
50.97
40.77
59.70
47.70
How many grams are there in 0.01 mole of Na₂SO₄?
7.1 g
14.2 g
9.6 g
1.42 g
What rules are included in Article V of RA 7920?
RULE 1 to 10
RULE 11 to 20
RULE 21 to 27
RULE 28 to 34
What is the static head corresponding to a flow velocity of 10 ft/sec?
1.55 ft
1.75 ft
2.05 ft
2.25 ft
Water flows through a long 0.5 in inside diameter hose at 3 gpm. Water velocity in fps is nearest to:
6
5
10
12
A high velocity flow of gas at 800 ft/sec possesses kinetic energy nearest to which of the following?
1.03 BTU/lb
4.10 BTU/lb
9.85 BTU/lb
12.8 BTU/lb
How many months at an interest rate of 1 percent per month does money have to be invested before it will double in value?
59
62
70
76
The phenomenon of melting under pressure and freezing again when the pressure is reduced is known as
sublimation
condensation
deposition
regelation
A single rivet is used to join two plates. If the diameter of the rivet is 20 mm and the load P is 30 kN, what is the average shearing stress developed in the rivet?
61.95 MPa
165.2 MPa
41.3 MPa
82.6 MPa
If a solid circular shaft of 1.25 in diameter is subject to a torque of 2500 lb-in causing an angle of twist of 3.12 degrees in a 5 ft length, determine the shear modulus of the material.
10.6 × 10⁶ psi
11.5 × 10⁶ psi
12.8 × 10⁶
9.3 × 10⁶
Which of the following cycles is used in vapor cycle power plant?
Brayton cycle
Rankine cycle
Diesel cycle
Ericsson cycle
A simply supported beam of length 10 ft and rectangular cross-section 1 in x 3 in carries a uniform load of 200 lb/ft. The beam is titanium, type Ti-5Al-2.5Sn, having a yield strength of 115,000 psi and E = 16 × 10⁶ psi. Determine the maximum deflection of the beam.
1.25 in
2.85 in
1.00 in
2.05 in
What is the centripetal force required to cause a 3200-pound car to go around a curve of 880-ft radius at a speed of 60 mph?
880 lb
990 lb
770 lb
1100 lb
