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What is the flow rate through a pipe 4 inches in diameter carrying water at a velocity of 11 ft/sec? A. 430.84 gpm C. 7.18 gpm B, 340.28 gpm D. 39.16 gpm

A. 430.84 gpm

Atmospheric pressure boils at 212°F, At the vacuum pressure at 24 in Hg, the temperature is 142°F. Find the boiling temperature when the pressure is increased by 40 psia from atmospheric A. 449.42°F C. 479,.13°F B. 526.34°F D. 263.45°F

A. 449.42°F

Find the pressure at the 100 fathom depth of water in kpag A. 1,793.96 kpag C. 1,983.96 kpag B. 1,893.96 kpag D. 1,693.96 kpag

A - 1793.96 kpag

Determine the specific weight of air at 760 mmH absolute and 22°C? A. 1.014 kg/m3 C. 1.316 kg/m3 B. 1.197 kg/m3 D. 1.266 kg/m3

B. 1.197 kg/m3

Camot cycle A, B, and C are connected in series so that the heat rejected from A will be the heat added to B and heat rejected from B will be added to C, each cycle operates between 30°C to 400°C. If heat added to A is 1000 KW, find the work output of C. A. 111.44 KW C. 247.53 KW B. 549.78 KW D. 141.69 KW

A. 111.44 KW

A steam turbine receives a steam flow of 1.35 kg/s and delivers 500 KW. The heat loss from the casing is negligible. Find the change of specific enthalpy across the turbine when the velocities at the entrance and exit and the difference in elevation at the entrance and exit are negligible A. -370.37 kJ/kg C. 371.37 kJ/kg B. -372.37 kj/kg D. -373.37 kJ/kg

A. -370.37 kJ/kg

What is the hydraulic gradient of a 1 mile, 17 inches inside diameter pipe when 3300 gal/min of water flow with f= 0.03. A. 0.00714 C. 0.00234 B. 0.00614 D. 0.00187

A. 0.00714

Find the depth in furlong of the ocean (SG = 1,03) if the pressure at the sea bed is 2,032.56 kpag. A.1 B.3 C.2 D.4

A. 1

A water tank of 18 ft wide, 14 ft tong and 4 ft high, calculate the pressure at the bottom of the tank. A. 1.733 psi C. 1.999psi B. 2.337 psi D. 3.773 psi

A. 1.733 psi

The tank of an air compressor has a volume of 3 ft? and is filled with air at a temperature of 40 °F, If a gage on the tank reads 150 psig, what is the mass of the air in the tank? A. 1.78 Ibs C. 2.00 Ibs B. 2.67 Ibs D. 1.98 Ibs

A. 1.78 Ibs

Steam turbine is receiving 1014 Ib,/hr of steam, determine the horsepower output of the turbine if the work done by steam is 251 Btu/lbm A. 100Hp C. 462.7 Hp B. 200Hp D. 6002.7 Hp

A. 100Hp

What is the resulting pressure when one kilogram of air at 104 kPa and 98 °C is heated at constant volume to 450 °C? A. 202.67 kPa C. 194.67 kPa B. 186.53 kPa D. 198.65 kPa

A. 202.67 kPa

The absolute pressure at the bottom of a vertical column of water is 15.5 psia. What is the height of this column? A. 22 in. C. 9.2in B. 12in D. 9.8

A. 22 in.

Oil flow though a 16 tubes on a single cooler with a velocity of 2 m/s. The internal diameter of the tube is 30mm and oil density is 0.85 g,/ml. Find the volume flow in liters per sec A. 22.62 C. 32.22 B. 62.22 D. 42.62

A. 22.62

During the working stroke of an engine the heat transferred out of the system was 150 ki/kg of working substances. The internal energy also decreased by 400 ki/kg of working substance, Determine the work done A. 250 KJ/kg C. 550 KJ/kg B. 600 KJ/kg D. 350 KJ/kg

A. 250 KJ/kg

The work required to accelerate an 800-kg car from rest to 100 km/h on a level road: A. 308.6 kJ C. 806.31 kJ B. 608.3 kJ D. 386 kJ

A. 308.6 kJ

A vertical column of water will be supported to what height by standard atmospheric pressure? A. 34 ft C. 36 ft B. 24 ft D. 26 ft

A. 34 ft

Determine the pressure exerted on a diver at 30 m below the free surface of the sea. Assume a barometric pressure of 101 kPa and the specific gravity of sea water is 1.03. A. 404 kPa C. 410 kPa B. 420 kPa D. 430 kPa

A. 404 kPa

A double purpose tank 18 ft wide, 24 ft long and 4 ft depth is filled with water. What is the weight of water in the tank in long tons? A. 49 tons C. 48 tons B. 54 tons D. 50 tons

A. 49 tons

A condenser vacuum gauge reads 715 mm Hg when the barometer stands at 757 mm Hg. State the absolute pressure in the condenser in KN/m2 or kPa. A. 5.6 kPa C. 5.9 kPa B. 6.5 kPa D. 5.2 kPa

A. 5.6 kPa

A bicycle tire has a volume of 600 cm'. It is inflated with carbon dioxide to pressure of 551.43 kPa at 20 °C. How many grams of CO, are contained in the tire? Rew = 0.18896 kI/kg.K A. 5.98 g C. 6.43 g B. 4.63g D. 3.83 g

A. 5.98 g

A Carnot cycle operates between 30 °C and 350 °C. Find the cycle efficiency. A. 51.36% C. 63.45% B. 45.37% D. 76.45%

A. 51.36%

Unknown volume of container gas of gas of 1 atmosphere is allowed to expand to another container of 10 m? volume at 500 mm Hg at constant temperature. Find the unknown volume. A. 6.58 m3 C. 6.75m3 B. 5.67 m3 D. 7.65 m3

A. 6.58 m3

Three-hundred kilojoules of heat flow by conduction from the outside to the inside of a cold storage in one hour. If the temperature and all other conditions are the same, what is the heat flowing through the cold storage room in two hours? A. 600 kJ C. 900 kJ B, 300 kJ D. 1,200 kJ

A. 600 kJ

Find the work posses for a Helium gas at 20 deg C. A. 609 K3/kg C. 229 ki/kg B. 168 KI/kg D. 339 Ki/kg

A. 609 K3/kg

Ammonia weighing 22 kgs \s confirmed inside a cylinder equipped with a piston has an initial pressure of 413 kPa at 38°C. If 3200 kJ of heat Is added to the ammonia until its final pressure and temperature are 413 kPa at 100°C, respectively, what fs the amount of work done by the fluid Ink? A. 667 C. 420 B. 304 D. 502

A. 667

Aluminum has a specific heat of 0.902 3/9 «°C. How much heat Is lost when a plece of aluminum with a mass of 23.984 g cools from a temperature of 415.0 C to a temperature of 22.0 °c? A. 8500 J C. 6000 J B. 80000 J D. 7500 J

A. 8500 J

A perfect gas has a value of R = 58.8 ft-Ib/Ib-°R and k = 1.26, If 20 Btu are added to 10 Ibs of the gas at constant volume when Initial temperature Is 90°F, find the final temperature. A. 97°F C. 154°F B. 104°F D. 85°F

A. 97°F

The equivalent weight 'of mass 10 kg at a location where the acceleration of gravity Is 9.77 m/sec. A.97.7N C. 79.7N B, 77.9N D. 977N

A.97.7N

A Carnot cycle engine has a sink temperature of 45°C. Its thermal efficiency is 48.20%. The heat rejected is 742 KJ/min. Determine the power output in KW. A. 23.87 KW C. 12.37 KW B. 11.51 KW D. 18.33 KW

B. 11.51 KW

What is the approximate value of temperature of water having enthalpy of 208 Btu/Ib? A. 138.67°C C. 258.67°C B. 115.55°C D. 68.67°C

B. 115.55°C

A 10 kg block is raised vertically 3 meters. What is the change in potential energy? A. 3203 J C. 350 kg-m2/s2 B. 294 J D. 350 N-m

B. 294 J

What Is the mass of acetylene gas, V=0.94 cu.ft, R=59.95 ft/lb °R, T= 90°F, P= 200 psia A. 0.816 Ib C. 0.841 Ib B, 0.829 Ib D. 0.852 Ib

B, 0.829 Ib

A 35.0 mi sample of gas Is enclosed in a flask at 22 degrees Celsius. If the flask was placed in an Ice bath at 0 degrees Celsius, what 'would the new gas volume be if the pressure is held constant? A. 34.1 mL C. 32.1 mL B, 32.39 mL D. 33.1 mL

B, 32.39 mL

A substance temperature was 620 deg R. What is the temperature in deg C? A. 50.7 C. 45.54 B. 71.11 D. 94.44

B, 71.11

One kilogram of air is compressed adiabatically and ina steady-flow manner. The compression efficiency is 80% and the work done on the air is 265 k0/kg. Compute the heat. A. 212 kJ/kg C. 100 kJ/kg B. 0 kJ/kg D. 331.25 kJ/kg

B. 0 kJ/kg

A condenser vacuum gauge reads 600 mm Hg when the barometer reads 760 mm Hg. What Is the absolute condenser pressure in bar? A. 0.0213 C.0.061 B. 0.213 D. 0.610

B. 0.213

A cylinder weighs 150 Iby. Its cross-sectional area Is 40 square inches. When the cylinder stands vertically on one end, what pressure does the cylinder exert on the floor? A. 14.1 kPa C. 58.2 kPa B. 0.258 bar D. 0.141 bar

B. 0.258 bar

How many cubic meters is 100 gallons of liquid? A. 3.7850 cu.m C. 0.1638 cu.m B. 0.3785 cu.m D. 1.638 cum

B. 0.3785 cu.m

If air is at a pressure of 22.22 psia and at temperature of800'R, what is the specific volume? A. 11.3 ft3/lbm C. 33.1 ft3/lbm B. 13.3 ft3/lbm D. 31.3 ft3/lbm

B. 13.3 ft3/lbm

The specific gravity of mercury is 13.55.specific weight of mercury? A. 123.9 kN/m3 C. 139.2 kN/m3 B. 132.9 kN/m3 D. 193.2 kN/m3

B. 132.9 kN/m3

An air compressor has an inlet enthalpy of 35 Btu/lb and an eoit enthalpy of 70 Btu/lb. The mass flow rate of alr 1s 3 Ib/s. If the heat loss is 466.62 Btu/min, find the work input. to the compressor. A. 139.59 hp C. 149.59 hp B. 159.59 hp D. 169.59 hp

B. 159.59 hp

Consider 1 kg of air at 32°C that expanded by a reversible polytroplc process with n = 1.25 urtit the pressure is halved. Determine the heat transfer, Specific heat at constant volume for air Is 0.1786 hI/kg.K. A. 17.02 kJ heat rejected C. 7.05 kJ heat rejected B. 17.02 kJ heat added D. 7.05 kJ heat added

B. 17.02 kJ heat added

If a particle has a velocity of 4 meters per second and a kinetic energy of 144 Joules, then the mass, in kilograms of this particle must be: A. 44 C. 16 B. 18 D. 24

B. 18

Assuming that there are no heat effects and no friction effects, find the speed of a 3220-Ibn body after it falls 78ft from rest. A. 422 ft/sec C. 424 fi/sec B. 224 ft/sec D. 424 ft/sec

B. 224 ft/sec

What Is the resulting pressure when one pound of air at 15 psia and 200°F is heated at constant volume to 800°F? A. 52.1 psia C. 15 psia B. 28.6 psia D. 36.4 psia

B. 28.6 psia

4 m^3/hr pump delivers water to a pressure tank. At the start, the gage reads 138 KPa unit! it reads 276 kPa and then the pump was shut off. The volume of the tank is 180 liters, At 276 kPa the water occupied 2/3 of the tank volume. Determine the 'volume of water that can be taken out until the gage reads 138 kPa. A. 31.20 liters C. 16.67 liters B. 34.59 liters D. 29.50 liters

B. 34.59 liters

An iron block weights 7 newtons and has a volume of 200 cubic centimeters. What is the density of the block? A. 3465 kg/m3 C. 1255 kg/m3 B. 3565 kg/m3 D. 2550 kg/m3

B. 3565 kg/m3

One piston of a hydraulic press has an area of 1 cm2. The other piston has an area of 25 cm3. If a force of 150 N is applied on the smaller piston, what will be the total force on the larger piston is both piston surfaces are the same level? A. 6N C. 175N B. 3750 D. 4250 N

B. 3750

A Carnot cycle has a maximum temperature of 550 °F and minimum temperature of 100 °F, If the heat added Is 4200 Btu/min, find the horsepower output of the engine. A, 34.53 C. 40.56 B. 44.13 D. 65.40

B. 44.13

A pressure gage registers 50 psig in a region where the barometer reads 14.8 psia. Find the absolute pressure in kPa. A. 666.66 KPa C. 556.66 kPa B. 446.66 kPa D. 336.66 kPa

B. 446.66 kPa

Fifty kilograms of cooling water per second enter the condenser at 25°C and leaves at 50°C. Find the heat carried away by water. A. 1234.45 KW C. 2340.53 KW B. 5233.75 KW D. 3140.25 kW

B. 5233.75 KW

A steam condenser receives 10 kg/s of steam with an enthalpy of 2770 kJ/kg. Steam condenses into a liquid and leaves with an enthalpy of 160 kJ/kg. Cooling water passes through the condenser with temperature increases from 13°C to 24°C. Calculate the water flow rate in ka/s. A. 583 C. 523 B. 567 D. 528

B. 567

If the gage pressure of a medium is 30 kPa (vacuum) and the atmospheric pressure is 101.3 kPa, the absolute pressure will be: A. 131.3 kPa C.-71.3 kPa B. 71.3 kPa D.-131.3 kPa

B. 71.3 kPa

A mixture of 0.4 lbm of helium and 0.2 lbm of oxygen is compressed polytropically from 14.7 psia and 60°F to 60 psia according to n = 1.4. temperature, T2. A. 727.7 R C. 722.7 R B. 777.2 R D. 277.7 R

B. 777.2 R

Determine the force in Newton in a piston of 465 mm2 area with a pressure of 0.172 MPa. A. 65 N C. 72 N B. 80 N D. 111 N

B. 80 N

Find the mass of ten quartz of water. A. 10.46 kg C. 11.46 kg B. 9.46 kg D. 8.46 kg

B. 9.46 kg

What is the absolute pressure if the gauge pressure is reading 9 bar and the atmospheric pressure is 0.9bar? A. 6.3 bar C. 7.8 bar B. 9.9 bar D. 8.1 bar

B. 9.9 bar

Determine the atmospheric pressure at a location where barometric reading is 740 mm Hg and gravitational acceleration is g = 9.7 m/s^2. Assume the temperature of mercury to be 10°C, at which the density is 13,670 kg/m^3 A. 99.45 kPa C. 95.44 kPa B. 97.41 kPa D. 98.66 kPa

B. 97.41 kPa

Air is compressed adiabatically from 30°C to 100°C. If mass of air being compressed is 5 kg. Find the change in entropy. A. 1,039 KJ/°K C. 0 B. 0.746 kJ/°K D. 1.245 KJ/kg

C. 0

An ideal gas at 0.80 atmospheres and 87°C 0.450 liter. How many moles are in the sample? (R = 0.0821 liter-atm/mole-K) A. 0.0002 mole C. 0.0122 mole B. 0.0378 mole D. 0.0091 mole

C. 0.0122 mole

Determine the specific weight of air at 760 mmHg absolute and 22°C. A. 1.024 kg/m3 B. 1.316 kg/m3 C. 1.197 kg/m3 D. 1.266 kg/m3

C. 1.197 kg/m3

Find the mass of carbon dioxide having a pressure of 20 psia at 200°F with 10 ft? volume. A. 1.04 Ibs C. 1.24 Ibs B. 1.14 Ibs D. 1.34 lbs

C. 1.24 Ibs

An oil storage tank contains oil with specific gravity of 0.88 and depth of 20 meters. What is the hydrostatic pressure at the bottom of the tank in kg/cm2? A. 1.67 C. 1.76 B. 1.56 D. 1.87

C. 1.76

The pressure of 750 mm Hg in kN/m2 A. 9 C. 100 B. 103 D. 110

C. 100

A water temperature rise of 18 °F in the water cooled condenser is equivalent in °C to: A. 7.78°C C. 10°C B. 263.56K D. -9.44C

C. 10°C

A Camot cycle has a sink temperature of 100 °F and a cycle efficiency of 70%. Find the temperature of the heat source. A. 1306.70 °F C. 1406.70 °F B, 1506.70 °F D. 1606.70 °F

C. 1406.70 °F

What is the absolute pressure exerted on the surface of @ 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. 148.6 psia B. 100.7 psia D. 103.7 psia

C. 148.6 psia

A transportation company specializes in the shipment of pressurized gaseous materials. An order is received from 100 liters of a particular gas at STP (32°F and 1 atm). What minimum volume tank is necessary to transport the gas at 80 °F and maximum pressure of 8 atm? A. 16 liters C. 14liters B. 10 liters D. 12 liters

C. 14liters

Determine the quality of steam in a vessel containing 2kg of saturated vapor and 8 kg of saturated liquid. A. 100% C. 20% B, 80% D. 60%

C. 20%

Two Carnot heat engine operate in series between a source at 527°C and sink at 17°C. The first engine rejects 400 KJ to the second engine. If both engines have the same efficiency. Calculate the source the temperature for the second. A 272°C C. 208.66°C B, 94.65°C D. 510°C

C. 208.66°C

What is the resulting pressure when one pound of air at 0.3 psig and 200 °F is heated at constant volume to 800 °F? A. 0.572 psig C. 28.6psia B. 7.857 psia D. 1.2 psig

C. 28.6psia

Find the enthalpy of Helium if Its Internal energy Is 200 KJ/kg. A. 144 KJ/kg. B. 223.42 KJ/kg. C. 333.42 KJ/kg. D. 166 KJ/kg.

C. 333.42 kJ/kg

Water flows in a pipe at the rate of 10 kg/s. If the velocity of flow is 10 m/s, find the pipe diameter. A. 30.23 mm C. 35.68 mm B. 38.39 mm D. 42.39 mm

C. 35.68 mm

An automobile tire Is inflated to 35 psig at 54 °F, After being driven, the temperature rises to 80 °F, Determine the final gage pressure assuming that the tire is inflexible. A. 36.51 psig C. 37.51 psig B. 38.51 psig D. 39.51 psig

C. 37.51 psig

Calculate the approximate enthalpy of water at 90 °C. A. 366.83 kJ/kg C. 376.83 kJ/kg B. 386.83 kJ/kg D. 396.83 kJ/kg

C. 376.83 kJ/kg

A pressure gage registers 50 psig in a region where the barometer reads 14.8 psia. Find the absolute pressure in kPa. A. 66.66 kPa C. 446.66 kPa B, 556.66 kPa D. 336.66 kPa

C. 446.66 kPa

If the temperature of an air parcel is -20.5 C, and its density is 0.690 kg/m3, what Is the pressure of the air parcel? A. 40 kPa C. 50 kPa B. 60 kPa D. 70 kPa

C. 50 kPa

The thermal efficiency of a Carnot cycle operating between 170°C and 620°C is closest to: A. 44% C. 50% B. 63% D. 73%

C. 50%

Fifty kilograms of cooling water per second enter the condenser at 25 °C and leaves at 50 °C. Find the heat carried away by water. A. 1234.45 KW C. 5233.75 KW B, 2340.53 kW D. 3140.25 Kw

C. 5233.75 KW

84. Determine the degrees of superheat of steam at 101.325 kPa and 170 °C. A. 50 °C C. 70 °C B. 60 °C D. 80 °C

C. 70 °C

If the initial volume of an ideal gas is compressed to one-half its original volume and to twice its temperature, the pressure A. Doubles C. Quadruples B. Remains constant D. Halves

C. Quadruples

If the pressure of a confined gas at a constant temperature is tripled, what will happen to the volume? A. The volume will be tripled B. The volume will remain unchanged C. The volume will be reduced to 'one-third of its original value D. The volume is constant

C. The volume will be reduced to 'one-third of its original value

A tank contains 90 ft? of air at a pressure of 350 psig. If the air Is cooled until Its pressure and temperature decreases to 200 psig and 70°F, respectively, what is the decrease in internal energy? A. 6232.09 Btu C. 5552 Btu B.-5552 Btu D. -6232.09 Btu

D. -6232.09 Btu

Two kilogram of air in a rigid tank changes its temperature from 32°C to 150°C. Find the work done during the process. A. 236 C. 195 B. 170 D. 0

D. 0

Air enters a nozzle steadily at 2.21 kg/m? and 30 m/s. What is the mass flow rate through the nozzle if the inlet area of the nozzle is 80 cm2? A, 0.35 kg/s C. 3.5 kg/s B, 5.3 kg/s D. 0.53 kg/s

D. 0.53 kg/s

If the specific weight of a liquid is 58.5 Ib per cubic foot, what is the specific volume of the liquid, cm/g? A, 0.5321 cm3/g C. 0.6748 cm3/g B. 0.9504 cm3/g D. 1.0675 cm3/g

D. 1.0675 cm3/g

Find the density of oil with a specific gravity of 1.6 in g/cm3 A. 15.68 g/cm3 C. 99.84 g/cm3 B, 0.8 g/cm3 D. 1.6 g/cm3

D. 1.6 g/cm3

A 1m x 1,5 m cylindrical tank Is full of oil with SG = 0,92. Find the force acting at the bottom of the tank in dynes. A. 106.33 x 10^7 dynes C. 106.33 x 10^4dynes B. 106.33 x 10^5 dynes D. 106.33 x 10^6 dynes

D. 106.33 x 10^6 dynes

An iron block weighs 5 Newton and has volume of 200 cm3. What is the density of the block? A. 2458 kg/m3 C. 2485 kg/m3 B. 2584 kg/m3 D. 2549 kg/m3

D. 2549 kg/m3

A certain gas at 101.325 kPa and 10°C whose volume Is 2.83 m? are ompressed into a storage vessel at 0.31 m? capacity. Before admission, the storage vessel contained the gas at a pressure and temperature of 137.8 kPa and 26°C, after admission the pressure has increased to 1171.6 kPa. What should be the final temperature of the gas in the vessel In Kelvin? A. 296.0 C. 180.0 B. 319.8 D. 314.2

D. 314.2

A refrigerating system operates on the reversed Carrot Cycle. The higher temperature of the refrigerant in the system Is 120 °F and the lower Is 10 °F, The capacity Is 20 tons, Neglect losses, Determine the coefficient of performance. A. 2.732 C. 5.373 B, 7.372 D. 4.273

D. 4.273

Convert 750°R to °K. A. 390.33 °K C. 410.33 °K B. 395.33 °K D. 416.33 °K

D. 416.33 °K

How much does 30 lbm weigh on the moon? (9moon = 5.47ft/s2). A. 2.0 Ibf C. 3.2 lbf B. 3.4 lbf D. 5.096 Ibf

D. 5.096 Ibf

The work done on air is 10.86 kJ/kg, determine the compressor power if it is receiving 272 kg/min if air. A. 36.72 hp C. 49.23 hp B, 2954hp D. 66 hp

D. 66 hp

A large mining company was provided with a 3 m? of compressed air tank. Air pressure in the tank drops from 700 kPa to 150 kPa while the temperature remains constant at 28°C. What percentage has the mass of air in the tank been reduced? A. 74.00 C. 78.56 B. 72.45 D. 78.57

D. 78.57

The specific weight of liquid is 60 lb/ft what is the equivalent to kN/m3: A. 9.334 C. 9.249 B. 9.643 D. 9.420

D. 9.420

Compute the mass of a 2m^3 propane at 280 kPa and 40°C. A. 6.47 kg C. 10.20 kg B. 5.1 kg D. 9.47 kg

D. 9.47 kg

100 g of water are mixed with 150 g of alcohol (density = 790 kg/m3). What is the specific volume of the resulting mixtures, assuming that the fluids mixed completely? A. 0.82 x 10^-3 cu.m/kg C. 0.88 x 10^-3 cu.m/kg B. 0.63 x 10^-3 cu.m/kg D. 1.16x10^-3 cu.m/kg

D.1.16x10^-3 cu.m/kg

A heat engine has a thermal efficiency of 50%. How much does the engine produce when heat is transferred at arate of 10° ki/hr? A. 50 MW C. 139 MW B. 75 MW D. 147 MW

c. 139 MW


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