PIPE_VIP7

1. What Law states that the change of internal
energy of an ideal gas is a function only of the
temperature change.
A. Boyle’s law
B. Charles’ Law
C. Law of Conservation of mass
D. Joule’s law
2. The mass flow rate of Freon 12 through a heat
exchanger is 10 lbs/min. Enthalpy of Freon entry
is 102 BTU/lb and of Freon exit is 26 BTU/lb.
Water coolant is allowed to rise 10 deg F. The
water flow rate in liters per minute is:
A. 76 C. 34.5
B. 54.3 D. 83
3. The specific speed of turbine is 85 rpm and
running at 450 rpm. If the head is 20 m and
generator efficiency is 90%, what is the maximum
power delivered by the generator?
A. 896.45 kW C. 322.23 kW
B. 835.57 kW D. 629.81 kW
4. The piston _________ when the fuel injection
process in diesel engine starts.
A. Approaches TDC
B. Entering TDC
C. Leaving TDC
D. Halfway of the stroke
5. What is the pressure at point A in the tank if
h = 2 feet? (g = 32.2 ft/s 2 and p = 1.94 slug/ft 3 )
A. 75 lbf/ft 2 C. 100 lbf/ft 2
B. 85 lbf/ft 2 D. 125 lbf/ft 2
6. The discharge line (B4) shall be vented to the
atmosphere through a ____ fitted to its upper
extremity.
A. Diffuser
B. Nozzle
C. Convergent-divergent nozzle
D. Vent Pipe
7. A stainless steel cylindrical with 1 ft
diameter, 4 ft high tank contains 3 ft of water.
What rotational speed is required to spin water
out the top?
A. 7.22 rad/s C. 22.7 rad/s
B. 27.2 rad/s D. 72.2 rad/s
8. Compute the air flow in ft 3 /min of mechanical
ventilation required to exhaust an accumulation
of refrigerant due to leaks of the system
capable of revolving air from the machinery for
a mass of 4 lbs refrigerant.
A. 200 C. 220
B. 210 D. 230
9. Compute the mass of a 2 m 3 propane at 280 kPa
and 40°C.
A. 6.47 kg C. 10.20 kg
B. 5.1 kg D. 9.47 kg
10. Foundation bolts of specified size should be
used and surrounded by a pipe sleeve with an
inside diameter of at least
A. 3 times the diameter of engine bolt
B. 2 times the diameter of engine bolt
C. 3 times the diameter of anchor bolt
D. 2 times the diameter of anchor bolt
11. Steam flows through a nozzle at 400°C and 1 MPa
(h = 3263.9 kJ/kg) with velocity of 300 m/s.
Find the stagnation enthalpy.
A. 3300 kJ/kg C. 3320 kJ/kg
B. 3290 kJ/kg D. 3309 kj/kg
12. In an air-standard Brayton cycle the inlet
temperature and pressure are 20°C and 101.325
kPa. The turbine inlet conditions are 1200 kPa
and 900°C. Determine the air flow if the turbine
produces 12 MW.
A. 21.41 kg/s C. 19.25 kg/s
B. 20.20 kg/s D. 18.10 kg/s
13. A fresh supply of 50 kilograms chicken at 6 °C
contained in a box is be frozen to -18°C in a
electric freezer. What will be the amount of
heat that needs to be removed? The latent heat
of the chicken is 247 KJ/kg, and its specific
heat is 3.32 KJ/kg-C above freezing and 1.77
KJ/kg-C below freezing. The container box is 1.5
kilograms, and the specific heat of the box
material is 1.4 KJ/kg-C. And the freezing
temperature of chicken is -2.8 °C.
A. 15,206.4 KJ C. 15,156 KJ
B. 11,863 KJ D. 1250 KJ
14. Among the four (4), which of the following is
not a method of starting diesel engine?
VIP NO.7 - PIPE
A. Compressed air
B. Manual: rope, crank and kick
C. Electric (battery)
D. Using another engine
15. What is the power required to transfer 97,000
coulombs of charge through a potential rise of
50 volts in one hour?
A. 0.5 kW C. 1.3 kW
B. 0.9 kW D. 2.8 kW
16. An unknown volume of container gas of 1
atmosphere is allowed to expand to another
container of 10 m 3 volume at 500 mmHg at constant
temperature. Find the unknown volume.
A. 6.58 m 3 C. 5.67 m 3
B. 6.75 m 3 D. 7.65 m 3
17. A mixing tank mixes two inlet streams containing
salt. The salt concentration in stream 1 is 5%
by weight, at stream 2 it is 15% by weight.
Stream 1 flows at 25 kg/s, and stream 2 flows
at 10 kg/s. There is only one exit stream. Find
the salt concentration in the exit stream.
A. 5% C. 11%
B. 8% D. 13%
18. An economizer is used with a steam boiler in
order to raise the temperature of the:
A. boiler feed water by utilizing exhaust steam
from the turbines or steam engines
B. air used for combustion of the fuel utilizing
some of the heat in the exit flue gases
C. air used for combustion of the fuel utilizing
exhaust some steam from the turbines or steam
engines
D. boiler feed water by utilizing some of the
heat in the exit flue gases
19. A furnace wall consists of 35 cm firebrick
(1.557 W/m-K). 12 cm insulating refractory
(k=0.346) and 20 cm common brick (k=0.692)
covered with 7 cm steel plate (k=45). The
temperature at the inner surface of the
firebrick is 1,230°C and at the outer face of
the steel plate is 60°C. Atmosphere is 27°C.
What is the value of the combined coefficient
for convection and radiation from the outside
wall?
A. 31.13 W/m 2 -K C. 41.3 W/ m 2 -K
B. 30.13 W/ m 2 -K D. 40.13 W/m 2 -K
20. A two-stage air compressor at 100 kPa and 22°C
discharges to 750 kPa. If the intercooler intake
is 105°C, determine the value of n.
A. 1.400 C. 1.345
B. 1.326 D. 1.288
21. A refrigerating machine that is classified as a
one-ton machine has the capacity to produce a
cooling effect of?
A. 3.516 kW C. 211 kJ/min
B. 12,000 Btu/hr D. All of the above
22. The moisture content Of the boiler at exit will
be ____ , by also increasing the boiler pressure
in Rankine Cycle.
A. increase
B. decrease
C. equally
D. remains the constant
23. What is the absolute pressure exerted on the
surface of a submarine cruising 300 ft below the
free surface of the sea? Assume specific gravity
of sea water is 1.03.
A. 133.9 psia C. 100.7 psia
B. 148.6 psia D. 103.7 psia
24. A hydro-electric plant having 30 sq. km
reservoir area and 100 m head is used to generate
power. The energy utilized by the consumers
whose load is connected to the power plant
during a five-hour period is 13.5x10^6 kWh. The
overall generation efficiency is 75%. Find the
fall in the height of water in the reservoir
after the 5-hour period.
A. 5.13 m C. 3.21 m
B. 1.32 m D. 2.20 m
25. A piston moves inside a cylinder at a velocity
of 6.0 m/s. The 160 mm diameter piston is
centrally located within the 160.2 mm inside
diameter cylinder. The film of oil is separating
the piston from the cylinder has an absolute
viscosity of 0.4 N-s/m 2 . Assuming a linear

velocity profile, find the shear stress in the
oil. (T = µ (v/H)).
A. 50,000 N/m 2 C. 24,000 N/m 2
B. 40,000 N/m 2 D. 34,000 N/m 2
26. A vapor having a temperature higher than the
saturation temperature corresponding to its
pressure.
A. Superheated vapor C. Compressed vapor
B. Saturated vapor D. Subcooled vapor
27. Neil Armstrong, an astronaut is subjected to an
acceleration equal to 5 times the pull of the
earth's standard gravity, during the take off
of a spaceship. If the said astronaut is 180 lbm
and the take off is vertical, determine force
does he exert on the seat.
A. 4414.5 N C. 4810.9 N
B. 8829 N D. 9620 N
28. A Carnot cycle is represented by a rectangle in
a T-S diagram that operates between temperature
limits of 300K and 650K. Inscribed within a
rectangle is an ellipse of maximum major and
minor axes, represents a cycle and operating at
the same temperature limits. Considering that
the major axis of the ellipse is two times that
of its minor axis, determine the thermal
efficiency of the cycle.
A. 52.32 % C. 44.88 %
B. 63.42 % D. 35.55 %
29. Blow off piping usually refers to:
A. vent pipes
B. piping coming from the super heater
C. piping coming from the safeties
D. piping at the lowest part of the boiler.
30. In an ammonia condensing machine (compressor
plus condenser) the water used for condensing
is 55°F and the evaporator is at 15°F. Calculate
the ideal COP.
A. 11.875 C. 10.875
B. 12.875 D. 13.875
31. What type of blends that comprises multiple
components of different volatiles that, when
used in refrigeration cycles, change saturated
temperature and volumetric composition as they
condense or evaporate at constant pressure?
A. Chemical C. Artificial
B. Blending D. Zeotropic
32. A diesel power plant uses fuel with heating
value of 43,000 kJ/kg. What is the density of
the fuel at 25°C?
A. 840 kg/m 2 C. 970 kg/m 2
B. 873 kg/m 2 D. 940 kg/m 2
33. In an experiment to determine the calorific
value of an oil fuel by means of a bomb
calorimeter, the mass of the sample of fuel is
0.75 gram, mass of water surrounding the bomb
1.8 kg, water equivalent of bomb and fittings
470 grams, and the rise in temperature is 3.3
C. What is the calorific value of this oil in
MJ/kg assuming a specific heat of water= 4.2
kJ/kg-K.
A. 25.63 MJ/kg C. 65.63 MJ/kg
B. 32.15 MJ/kg D. 41.94 MJ/kg
34. If Joule Thompson coefficient is equal to zero,
then the process will become
A. isobaric C. isothermal
B. isenthalpic D. isentropic
35. What is the power ratio of a pump and its 1/5
scale model if the ratio of heads is 4 to 1?
A. 20 C. 12.5
B. 200 D. 125
36. What is also known as deaerator?
A. Electric heater C. Heat pump
B. Open heater D. Close heater
37. What is the pressure at 12300 ft altitude if air
is incompressible, if the atmospheric air 14.7
psia and 60 o F at sea level? Note: @ 60°F ; the
density Of air is 0.0763 lbm/ft 3 ; P1 = 14.7
psia
A. 9.33 psia C. 9.63 psia
B. 9.43 psia D. 9.53 psia
38. The type of flow occupying in a 1 cm diameter
pipe which water flows at a velocity of 2.50
m/s. Use v = 1.13x10^(-6) m 2 /s for water.
A. Turbulent C. laminar
B. constant D. transitional
39. One kilogram of air is compressed adiabatically
and in a steady-flow manner. The compression
VIP NO.7 - PIPE
efficiency is 80% and the work done on the air
is 265 kJ/kg. Compute the heat.
A. 212 kJ/kg C. 0 kJ/kg
B. 100 kJ/kg D. 331.25 kJ/kg
40. The type of tubing that is unenclosed and
therefore exposed to sun, crushing abrasion,
puncture, or similar damage after installation
is called _______.
A. Unprotected tubing
B. Bare tubing
C. Insulated tubing
D. Painted tubing
41. A foundation measures 12 ft x 14 ft x 16 ft.
Find the number of sacks of cement needed for a
1:2:4 mixture.
A. 302 C. 356
B. 404 D. 598
42. Find the enthalpy of water at 212°F and 14.7 psi
if the dryness factor is 30%. Use the
approximate enthalpy formula of liquid.
A. 461 Btu/lb C. 481 Btu/lb
B. 471 Btu/lb D. 491 Btu/lb
43. Calculate the use factor of a power plant if the
capacity factor is 35% and it operates 8000 hrs
during the year?
A. 38.325% C. 35.823%
B. 33.825% D. 32.538%
44. The fuel used in a power plant that is used
during peak periods.
A. Absorbent C. Gas
B. Liquid D. foam
45. Ten kilograms per second of steam enter the
turbine with an enthalpy of 3200 kJ/kg and enter
the condenser with an enthalpy of 2500 kJ/kg in
a Rankine cycle. If the turbine efficiency is
80% and the generator efficiency is 90%,
determine the power plant output.
A. 4320 kW C. 4056 kW
B. 3213 kW D. 5040 kW
46. Three thousand cubic feet per minute of air are
circulated over an air-cooled condenser. If the
load on the condenser is 64,800 Btu/hr, compute
the temperature rise of the air passing over the
condenser. Specific volume of standard air
(13.34 ft 3 /lb).
A. 10℉ C. 20℉
B. 15℉ D. 25℉
47. A steam pipe having a surface temperature of
250°C passes through a room where the
temperature is 27°C. The outside diameter of the
pipe is 100 mm and emissivity factor is 0.8.
Calculate the radiated heat loss for 3 m pipe
length.
A. 1434.47 W C. 2851.82 W
B. 3746.35 W D. 3546.45 W
48. Freon is:
A. non-corrosive C. flammable
B. nontoxic D. all of these
49. The lower half of a 10 m high cylindrical
container is filled with water and the upper
half with oil that has SG = 0.85. Determine the
pressure difference between the top and bottom
if the cylinder.
A. 90.74 kPa C. 83.38 kPa
B. 92.74 kPa D. 98.10 kPa
50. What is the term use for its volume as determine
from internal dimensions of the container with
no allowance or space for the volume of internal
parts?
A. Total-interference volume
B. Total allowance volume
C. Internal space volume
D. Internal gross volume
51. How much power is required if a turbine receives
150 lbm/sec of air at 63 psia and 2450 deg R and
expands it polytropically to 14.7 psia. The
exponent n = 1.45 for the process?
A. 53,343.16 ft-lb/sec C. 52,343.16 BTU/sec
B. 53,343.16 HP D. 53,343.16 kW
52. The work done on air is 10.86 kJ/kg, determine
the compressor power if it is receiving 272
kg/min of air.
A. 2954 hp C. 49.23 hp
B. 66 hp D. 36.72 hp
53. In a refrigeration system, which of the four(4)
is not a type of a water-cooled condenser?
A. Shell and tube C. Double tube

B. Shell and coil D. Double shell
54. A rectangular aluminum sheet duct has a
dimensions of 25 cm by 200 cm. Compute for the
Equivalent Diameter of the duct.
A. 0.50 m C. 0.40 m
B. 0.60 m D. 0.70 m
55. A cylinder tank weighs 150 lbf and its crosssectional
area is 40 sq in. When the cylinder
tank stands vertically on one end, what pressure
does the cylinder tank exert on the floor?
A. 14.1 kPa C. 0.141 bar
B. 58.2 kPa D. 0.258 bar
56. A small steam turbine generator power plant of
5,000 kW capacity has a full-load steam rate of
6.0 kg/kW-hr. No-load steam consumption may be
taken as 10% of full-load steam consumption. At
60 per cent load, calculate the hourly steam
consumption of this unit.
A. 20,500 kg/hr C. 25,000 kg/hr
B. 19,200 kg/hr D. 18,500 kg/hr
57. Typical compression ratio of Otto cycle is
A. 6 C. 8
B. 10 D. 12
58. Calculate the specific volume of an air—vapor
mixture in cubic meters per kilogram of dry air
when the following conditions prevail : t =
30°C, w= O .015 kg/kg, and Pt = 100 kPa.
A. 0.79 m 3 /kg C. 0.89 m 3 /kg
B. 0.92 m 3 /kg D. 0.69 m 3 /kg
59. If the specific weight of liquid is 60 lb/cu ft,
what is its equivalent to kN/cu m.
A. 9.420 C. 9.249
B. 9.643 D. 9.334
60. A small drop of water at 80 ½F is in contact
with the air and has diameter of 0.02 in. If the
pressure within the droplet is 0.082 psi greater
than the atmosphere, What is the value of the
surface tension?
A. 0.00492 lb/ft C. 0.00654 lb/ft
B. 0.00043 lb/ft D. 0.00876 lb/ft
61. Needs only single pump regardless of number of
heaters
A. Open heater
B. Closed heater
C. Mono heater
D. Regenerative heater
62. What is the free-aperture cross section in sqm
for the ventilation system of a machinery room
if the mass of the refrigerant is 9 kg?
A. 0.414 m>> C. 0.614 m>>
B. 0.514 m>> D. 0.314 m>>
63. Hot water from condenser enters the cooling
tower circuit at 50 degC and exits the tower at
32 degC, if the ambient condition is at 35 deg
C DB and 34 degC WB, what is the cooling
effectiveness of the cooling tower in percent?
A. 69.23% C. 59.23%
B. 74.28% D. 64.23%
64. What is the best and modern way of detecting air
compressor leak?
A. Air leak detector
B. Soap and water
C. Gas leak detector
D. Acoustic leak detector
65. A precision and electronic barometer Is used to
measure an airplane's altitude by comparing the
barometric pressure at a given flying altitude
to that on the ground. What will be the
airplane's altitude if the Captain's pilot
measures the barometric pressure at 700 mm-Hg,
the ground says it is at 758 mm-Hg, and the
average air density is 1.19 kg/m3. g = 9.8 m/s 2 .
A. 889 m C. 980 m
B. 535 m D. 663 m
66. A coal from Marinduque has the following
ultimate analysis:
C = 69% N2 = 5% H 2 = 2.5% S = 7%
A. 4.5 per cent C. 2.5 per cent
B. 3.5 per cent D. 0.5 per cent
67. The journals of a stainless steel shaft are 38.0
cm diameter, it runs at 105 rpm and the
coefficient of friction between journals and
bearings is 0. 02. If the average load on the
bearings is 200 kN, find the heat generated per
minute at the bearings.
A. 501.575 kJ C. 501.375 kJ
B. 505.575 kJ D. 401.375 kJ
VIP NO.7 - PIPE
68. What will be the coefficient of Performance
(COP) of the system, if the energy efficiency
ratio of the refrigeration system is 12.6?
A. 3.69 C. 6.96
B. 5.96 D. 4.69
69. Water is boiled in a big pan on a gas stove at
sea level. During 10 minutes of boiling, it is
observed that 200 grams of water has evaporated.
What is then the rate of heat transfer to the
water?
A. 53.5 kJ/min C. 46.4 kJ/min
B. 45.1 kJ/min D. 41.8 kJ/min
70. Type of condenser that operates like a cooling
water
A. Air-cooled condenser
B. Water cooled condenser
C. Shell and tube condenser
D. Evaporative condenser
71. A diesel engine consumed 945 liters of fuel per
day at a temperature of 35 deg C. If the fuel
was purchased at a temperature of 15.5 deg C and
30 deg API at P29.00/li, compute for the cost
of fuel to operate the engine per day.
A. P4,677.50 C. P27,127.76
B. P48,088.90 D. P5,677.50
72. Water is pumped at 1 cum/s to an elevation of 5
meters through a flexible hose using 100 per
cent efficient pump rated at 100 kilowatts.
Using the same length of hose, what size of
motor is needed to pump 1 cum/s of water to a
tank with no elevation gain? In both cases, both
ends of the hose are at temperature pressure.
Neglect kinetic energy.
A. 51 kW C. 36 kW
B. 22 kW D. 43 kW
73. What will be the weight of 30 lbm, if its weighed
on the moon? (gmoon = 5.47 ft/s 2 )
A. 4.1 lbf C. 2.1 lbf
B. 3.1 lbf D. 5.1 lbf
74. It is a commonly used device for measuring
temperature differences or high temperatures.
A. Thermistor C. Thermocouple
B. Bimetallic Strip D. Mercury in glass
75. Refrigerant number R-744 is
A. Carbon monoxide C. Carbon dioxide
B. Propane D. Butane
76. What will be the equivalent pressure at 600 feet
depth of sea water in kPag.
A. 1,793.96 kpag C. 1,693.96 kpag
B. 1,993.96 kpag D. 1,893.96 kpag
77. An adiabatic tank containing air is used to
power an air turbine during times of peak power
demand. The tank has a volume of 500 m3 and
contains air at 1000 kPa and 500 kPa. Determine
the mass remaining when the pressure reaches 100
kPa.
A. 276.37 kg C. 772.73 kg
B. 672.73 kg D. 227.73 kg
78. Is use if extracted steam upon condensation gets
subcooled
A. Trap C. Filter
B. Deaerator D. Drain cooler
79. If the atmospheric conditions are 13.9 psia and
68 deg F and the barometer fluid is mercury, to
what height will a barometer column rise?
A. 6.26 ft C. 3.56 ft
B. 2.36 ft D. 5.36 ft
80. What is the type of geothermal plant that is
used when there is a presence of brine extracted
from underground?
A. Wet geothermal plant
B. Triple flash geothermal plant
C. Binary geothermal plant
D. Double-flash geothermal plant
81. Two hundred metric tons per hour of coal are
burned in 125 per cent of stoichiometric air;
the ultimate fired analysis is 75 per cent C, 4
per cent H, 0.5 per cent S, 6 per cent O, 1.5
per cent N, 8 per cent W, 5 per cent ASH. Find
the mass of air needed to burn the fuel.
A. 4526.2 Mton/hr C. 2446.45 Mton/hr
B. 6532.2 Mton/hr D. 3652.3 Mton/hr
82. A common filter material used for brazing is
composed of:
A. 95/5 tin-antimony C. Cast steel
B. 50/50 tin-lead D. 15% to 60 % silver

83. A private transport company specializes in the
shipment of pressurized gaseous materials. An
order is received for 100 liters of a particular
gas at (32 deg F and 1 atm). Determine the
minimum volume tank that is necessary to
transport the gas at a temperature of 80 deg F
and a maximum pressure of 8 atm.
A. 12 liters C. 14 liters
B. 10 liters D. 16 liters
84. The unit of measurement for current flow. The
magnitude is determined by the number of
electrons passing a point at a given time.
A. Ohm C. Wattage
B. Ampere D. Voltage
85. A pressure cooker operates by cooking food at a
higher pressure and temperature than is possible
at atmospheric conditions. Steam is contained
in the sealed pot, with vent hole in the middle
of the cover, allowing steam to escape. The
pressure is regulated by covering the vent hole
with a small weight, which is displaced slightly
by escaping steam. Atmospheric pressure is 100
kPa, the vent hole area is 7-mm 2 , and the
pressure inside should be 250 kPa. What is the
mass of the weight?
A. 0.1783 kg C. 1.75 kg
B. 1.05 kg D. 0.107 kg
86. At standard conditions, pressure p = 14.7 psia
and temperature t = 32 deg F, what is the volume
of any gas per pmol?
A. 359 cu.ft/pmol C. 959 cu.ft/pmol
B. 395 cu.ft/pmol D. 953 cu.ft/pmol
87. The Coefficient of Performance (COP) of actual
absorption refrigeration system is usually
A. less than 1 C. less than 3
B. greater than 2 D. less than 4
88. Find the approximate value of the temperature
of water having an enthalpy of 2-8 BTU/lb.
A. 618.67 degC C. 115.55 degC
B. 218.67 degC D. 118.67 degC
89. Are suitable for use in ammonia system
A. Copper
B. Aluminum and its alloy
C. Plastic
D. Cast iron
90. A nozzle receives 0.5 kg/s of air at a pressure
of 2700 kPa and a velocity of 30 m/s and with
an enthalpy of 923 kJ/kg, and the air leaves at
a pressure of 700 kPa and with an enthalpy of
660 kJ/kg. Determine the exit velocity from the
nozzle.
A. 700 m/s C. 726 m/s
B. 923 m/s D. 660 m/s
91. An atmospheric pressure boils at 212 deg F. At
the vacuum pressure of 24 in Hg, the temperature
is 142 degF. What is the Boiling temperature
when the pressure is increased by 40 psia from
atmospheric?
A. 263.45 degF C. 449.42 degF
B. 526.34 degF D. 479.13 degF
92. Where objects are to be cooled to temperature
below ___ cascade refrigeration cycle is often
used in industrial process?
A. -46°C C. -36°C
B. -26°C D. -66°C
93. If a particle has a velocity of 4 m/sec and a
kinetic energy of 144 Joules, what will be the
Mass of this particle?
A. 44 kg C. 18 kg
B. 24 kg D. 16 kg
94. In a new model Francis turbine, the pressure
gage leading to the turbine casing reads 380
kPa. The velocity of water entering the rubine
is 8 meters per second, if net head of the
turbine is 45 m, what is the distance from center
of spiral casing to the tailrace?
A. 4.0 m C. 4.5 m
B. 3.5 m D. 3.0 m
95. A “Fairbank Morse” vertical turbine pump draws
water at a head of 110 meters and a discharge
rate of 550 liters per second. What is the brake
horsepower input if the pump efficiency is at
70 percent?
A. 854.75 kW C. 847.57 kW
B. 875.74 kW D. 874.57 kW
96. If the specific gravity of mercury is SP = 13.55
, what is the specific weight of mercury?
VIP NO.7 - PIPE
A. 139.2 kN/m 3 C. 123.9 kN/m 3
B. 193.2 kN/m 3 D. 132.9 kN/m 3
97. What is the color code of compressed air
pipelines?
A. brown C. light blue
B. red D. violet
98. A continuous and unobstructed path of travel
from any point in a building or structure to a
public way
A. Average of aggress
B. Mean of aggress
C. Hallway of aggress
D. Pathway of aggress
99. Convert 8500 lb/hr of standard air to cubic feet
per minute (cfm)
A. 1988 C. 8198
B. 1889 D. 1898
100. What Is the color code for the cylinder of R-
22?
A. Green C. Orange
B. Silver D. White
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