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Worksheets

No.10 (MESL)

Total questions: 131

Worksheet time: 1hrs 6mins

Name
Class
Date
1.

Under the provisions of the PSME Code 1993, what is the color symbol for air piping?

a)

Silver gray

b)

Green

c)

Light blue

d)

Red

2.

Which of the following is the basis for Bernoulli’s law for fluid flow?

a)

Fourier’s Law

b)

Continuity equation

c)

Principle of mass conservation

d)

Principle of energy conservation

3.

Which of the following is not a unit of work?

a)

Dyne

b)

Work

c)

Watt – second

d)

Newton – meter

4.

What condition exists in an adiabatic throttling process?

a)

Variable enthalpy

b)

Constant enthalpy

c)

Constant entropy

d)

Volume constant

5.

Specific gravity of a substance is the ratio of its density to the density of

a)

Mercury

b)

Water

c)

Gas

d)

Air

6.

Instrument used in determining specific gravity of any substance

a)

Hydrometer

b)

Westphal balance

c)

Psychrometer

d)

All of the above

7.

The weight of the column of air above the earth surface

a)

Aerostatic pressure

b)

Air pressure

c)

Atmospheric pressure

d)

Wind pressure

8.

Gas being heated at constant volume is undergoing the process of

a)

Isentropic

b)

Adiabatic

c)

Isobaric

d)

Isometric

9.

A process that has no heat transfer

a)

Reversible

b)

Adiabatic

c)

Polytropic

d)

Isometric

10.

Heat normally flowing from a high temperature body to a low temperature body wherein it is impossible to convert heat without other effects is

a)

1st law of thermodynamics

b)

2nd law of thermodynamics

c)

3rd law of thermodynamics

d)

Zeroth law

11.

Form of energy associated with kinetic energy of the random motion of large number of molecules

a)

Heat

b)

Heat of fusion

c)

Kinetic energy

d)

Enthalpy

12.

At what temperatures are the two temperatures scales, degrees Celsius and Fahrenheit equal?

a)

– 20C

b)

– 40C

c)

– 30C

d)

40C

13.

Second law of thermodynamics states that

a)

Entropy cannot be neither created nor destroyed

b)

Heat energy cannot be completely transformed into work

c)

There is no tendency towards spontaneous change

d)

Mass is indestructible

14.

Turbojet engine thrust is produced by

a)

Trust reaction of the turbine blading

b)

Additional weight of the injected fuel

c)

Ram effect of the intake fuel

d)

Acceleration of the gasses through the engine

15.

A process in which water vapor is added to the air stream by adiabatic evaporation

a)

Evaporative cooling

b)

Sensible cooling

c)

Humidifying

d)

None of the above

16.

Each miniature boiler shall be provided with a blow off connection not less than 12.7 mm iron size in direct connection with the

a)

Lowest water space

b)

Side of the lowest water space

c)

5mm above the west water space

d)

None of the above

17.

Where ground water or surface water are used for feed water, water hardness of 0 – 10 ppm shall be considered and alkalinity of

a)

ph 10 to ph 11

b)

ph 9 to ph 10

c)

ph 8 to ph 9

d)

ph 8 to ph 10

18.

The ratio of the weight of the water vapor mixed with a Kg of dry air to the weight of saturated vapor at the same temperature mixed with a Kg of dry air

a)

Relative humidity

b)

Humidity ratio

c)

Saturation ratio

d)

Specific density

19.

If the initial volume of saturated steam is expanded isothermally to twice the initial volume, the pressure

a)

Increases

b)

Decreases

c)

Constant

d)

Specific Density

20.

Latent heat of fusion required to ice to liquids

a)

970.3 BTU/lbm

b)

2257 KJ/kgm

c)

335 KJ/kgm

d)

2442 KJ/kgm

21.

Ratio between average demand and the maximum demand

a)

Load factor

b)

Demand factor

c)

Capacity factor

d)

Use factor

22.

Absolute viscosity is essentially independent of pressure and is primarily dependent on

a)

Density

b)

Velocity

c)

Specific gravity

d)

Temperature

23.

Reynolds number may be calculate for

a)

Diameter, velocity and surface tension

b)

Diameter, density and absolute viscosity

c)

Diameter, velocity and absolute viscosity

d)

Characteristic length, mass flow rate per unit area and absolute viscosity

24.

Mechanically and electrically operated brakes shall be inspected

a)

Every month

b)

Periodically

c)

As often as necessary

d)

Every time there is complaint

25.

A type of compressor which is often used for supercharging diesel engines

a)

Roots blower

b)

Rotative compressor

c)

Centrifugal compressor

d)

Axial compressor

26.

The sum of the pressure head, elevation head and the velocity head remains constant, is known as

a)

Torricelli’s theorem

b)

Charles law

c)

Archimedes principle

d)

Bernoulli’s principle

27.

Entropy is the measure of

a)

Change in enthalpy of a system

b)

Randomness and disorder

c)

Internal energy of a gas

d)

Heat capacity of a substance

28.

Power output of the engine is increased through

a)

Supercharging

b)

Turbo – charging

c)

Scavenging

d)

All of the above

29.

Galvanized iron is a term referring to iron coated with

a)

Magnesium

b)

Zinc

c)

Tin

d)

Aluminum

30.

A closed vessel intended for use in heating water or for application of heat to generate steam or other vapor to be used externally to itself is called

a)

Steam generator

b)

Heater

c)

Unfired pressure vessel

d)

Regenerator

31.

Formation of bubbles in a low pressure area in centrifugal pump and later their sudden collapse is called

a)

Erosion

b)

Corrosion

c)

Cavitation

d)

Explosion

32.

The equilibrium temperature that a regular thermometer measures if exposed to atmospheric air is

a)

Dew point

b)

Wet bulb

c)

Dry bulb

d)

Approach

33.

Type of cooler extensively used for medium and large size diesel engines

a)

Shell and tube cooler

b)

Plate cooler

c)

Disc cooler

d)

Radiator cooler

34.

In energy transformation process in which the resultant condition lacks the driving potential needed to reverse the process, the measures of this loss is expressed as

a)

Enthalpy increase of the system

b)

Entropy increase of the system

c)

Entropy decrease of the system

d)

Specific heat ratio of the system

35.

Heat transmission carried by the movement of heated fluids away from a hot body as in the heating of water by a hot surface

a)

Conduction

b)

Convection

c)

Radiation

d)

Absorption

36.

Use as a guide for selecting the most efficient centrifugal pump

a)

Type of impeller

b)

Overall efficiency

c)

Specific speed

d)

Peripheral coefficient

37.

Source of power which acts as an excellent prime mover for the generation with horsepower ranging from 100 to 5000

a)

Steam engine

b)

Gas turbine

c)

Steam turbine

d)

Diesel engine

38.

When vane control is used for mechanical draft fans and where a wide load range is required, it is

a)

Single speed drive motor

b)

Two speed drive motor

c)

Three speed drive motor

d)

Four speed drive motor

39.

In the flow process, neglecting KE and PE changes, integral of –Vdp represents

a)

Flow energy

b)

Enthalpy change

c)

Heat transfer

d)

Shaft work

40.

A system or refrigeration which uses heat energy to change the condition required in the refrigeration cycle

a)

Vapor compression

b)

Steam jet refrigeration

c)

Absorption refrigeration

d)

Ice refrigeration

41.

Ph value for alkalinity requires

a)

8 or more

b)

2 to 4

c)

4 to 5.5

d)

5.5 to 7

42.

Standard height of workshop ceiling

a)

3 meters

b)

4 meters

c)

5 meters

d)

6 meters

43.

The ratio of maximum load to the rated plant capacity

a)

Load factor

b)

Capacity factor

c)

Demand factor

d)

Use factor

44.

Air is compressed in a cylinder, the work is

a)

Zero

b)

Indeterminate

c)

Positive

d)

Negative

45.

Amount of heat required to raise the temperature of one gram of that substance in one degree centigrade

a)

BTU

b)

CHU

c)

Calorie

d)

Joule

46.

Amount of heat required to change the temperature of a given unit mass of a substance in one degree

a)

Sensible heat

b)

Latent heat

c)

Specific heat

d)

Expensive heat

47.

The National Association of Mechanical Engineers accredited by the Professional Regulation Commission

a)

PAMEE

b)

PIMEE

c)

PSME

d)

Board of Mechanical Engineering

48.

Under the code of ethics, the mechanical engineer shall be completely above suspicion or reproach in relation with his clients and employee

a)

True

b)

False

c)

Neither true or false

d)

None of the above

49.

Under the code of ethics, the mechanical engineer should recognized ________ as one of the major resources of our country

a)

Machine

b)

People

c)

Labor

d)

Technology

50.

Minimum grade that maybe required in the maintenance of a 200 kW Diesel Power Plant:

a)

RME

b)

CPM

c)

PME

d)

MPE

51.

Minimum grade of mechanical engineer required in the operation of a 500 kW Diesel Power Plant:

a)

PME

b)

RME

c)

MPE

d)

CPM

52.

The power consumed by an AC machine is equal to ________ where E is the voltage I is the current

a)

sin theta

b)

cos theta

c)

EI cos theta

d)

EI sin theta

53.

The ratio of power output in watts to the product of volts and amperes is called

a)

Demand factor

b)

Power factor

c)

Generator efficiency

d)

Capacity factor

54.

A concrete mixture of 1:2:4 means a mixture of

a)

1 measure cement; 2 measures of sand; 4 measures gravel

b)

1 measure sand; 2 measures cement; 4 measures gravel

c)

1 measure Portland cement; 2 measures gravel; 4 measures sand

d)

1 measure gravel; 2 measures sand; 4 measure cement

55.

The heat transfer process in a cooling tower consist of a transfer of heat from water to

a)

Ice

b)

Vapor

c)

Saturated air

d)

Unsaturated air

56.

The measure of the fluid resistance when acted upon by an external force

a)

Density

b)

Viscosity

c)

Flash point

d)

Pour point

57.

The difference between the sum of the absolute dynamic head at the outlet of the pump and the sum of the absolute dynamic head at the inlet connected to the pump centerline is

a)

Net Positive Suction Head

b)

Developed head

c)

Total dynamic head

d)

Total suction head

58.

Large pumps usually are driven by 3 – phase induction motors. The synchronous speed of such a motor is the speed of the rotating field

a)

n = (120 x frequency)/no. of poles

b)

n = (120 x frequency)/power factor

c)

n = (120 x frequency)/(2 x no. of poles)

d)

n = (50 x 120 x frequency)/no. of poles

59.

Best safety practices in industrial plant.

a)

To train delivery personnel

b)

To maintain fire brigade

c)

To provide machines with appropriate guard

d)

To provide alert security guards

60.

A type of boiler which incorporates furnace water cooling in the circulatory system is known as

a)

Integral furnace boiler

b)

Integral crate boiler

c)

Integral co – generation boiler

d)

Integral box boiler

61.

Boiling point of Freon 12

a)

-29.6 oC

b)

-40 oC

c)

-48 oC

d)

-52 oC

62.

Transmission of heat from a body to a cold body by electromagnetic waves

a)

Conduction

b)

Convection

c)

Radiation

d)

Absorption

63.

An increase in enthalpy of a substance when it undergoes some phase change at a constant pressure and temperature

a)

Heat of crystallization

b)

Heat of transformation

c)

Heat of fusion

d)

Heat vaporization

64.

The age limit of a horizontal return tubular flue or cylinder boiler having a longitudinal lap joint and operating at a pressure in excess of 345 kPa shall be

a)

18 years

b)

35 years

c)

30 years

d)

20 years

65.

Air used for comfort cooling shall maintain a movement of

a)

8 to 10 mm/min

b)

10 to 10000 mm/min

c)

7850 to 9000 mm/min

d)

4570 to 7620 mm/min

66.

The loss of weight of a body submerged in a fluid is

a)

Independent of the volume of the body

b)

Proportional to the depth of submergence

c)

Proportional to the weight of the body

d)

Equal to the weight of the body displaced

67.

The ratio of the maximum demands of the separate parts of a system and the maximum demand of the entire system:

a)

Diversity factor

b)

Power factor

c)

Load factor

d)

Use factor

68.

The only country that recognizes mechanical engineering license of Filipinos is issued by the Professional Regulation Commission and allowed to use the license in their country

a)

Thailand

b)

Taiwan

c)

Japan

d)

None of the above

69.

Before a Registered Mechanical Engineer be allowed to take the Professional Mechanical Engineer licensure examination, he must have _________ years of practice as a Registered Mechanical Engineer

a)

3

b)

4

c)

5

d)

More than 6

70.

Responsible in the preparation of plans, valuation, technical reports, estimates or specifications for any mechanical works, project or plant

a)

Registered Mechanical Engineer

b)

Mechanical Plant Engineer

c)

Professional Mechanical Engineer

d)

Unlicensed Mechanical Engineer but with Masteral

71.

The _________ may remove any member of the board of mechanical engineering for continued neglect of duty or incompetence or for dishonorable misconduct

a)

PSME President

b)

PIMEE President

c)

Professional Regulation Commission

d)

Senate President

72.

_________ refuses to issue certificates to any person convicted by court of any criminal offense involving moral turpitude, dishonorable conduct or to any person of unsound mind

a)

PSME

b)

Public Works

c)

Board of Mechanical Engineering

d)

Professional Regulation Commission

73.

Steam engines, internal combustion engines, boilers, turbines, crushers, mills, pumps are classified as

a)

Mechanical plant

b)

Mechanical works

c)

Mechanical equipment, machinery or procedure

d)

Machines

74.

Steam generators must be inspected by authorized government representatives who shall conduct a hydrostatic test of _______ % of its stipulated steam pressure

a)

150

b)

100

c)

180

d)

130

75.

Upon completion of boiler installations, this must be inspected by

a)

Licensed Mechanical Engineer

b)

Municipal Engineer

c)

Professional Mechanical Engineer

d)

Boiler Supplier

76.

The lowest permissible water level in boilers shall be ________ of the height of the shell except where the boiler is equipped with internal surface in which it shall not be less than __________ of the tube length above the top of the surface

a)

1/2 : 1/2

b)

1/3 : 1/3

c)

1/4 : 3/4

d)

1/4 : 1/4

77.

The ratio of the average load to the plant capacity times the number of hours in operation

a)

Demand factor

b)

Load factor

c)

Capacity factor

d)

Use factor

78.

Speed of a turbine will run and develop a 1 brake horsepower from a head of 1 foot

a)

Runaway speed

b)

Peripheral speed

c)

Specific speed

d)

Rim speed

79.

Duration of the actual service to the total duration of the period of time considered

a)

Utilization factor

b)

Use factor

c)

Operation factor

d)

Load factor

80.

Ratio of the maximum demand of the system over the rated capacity of the system

a)

Operation factor

b)

Use factor

c)

Utilization factor

d)

Load factor

81.

Power intended to be always available even under emergency conditions

a)

Prime power

b)

Firm power

c)

Primary power

d)

Dump power

82.

The temperature at which oil gives off vapor that burns continuously when ignited

a)

Fire point

b)

Pour point

c)

Flash point

d)

Cloud point

83.

Ignition quality rating of diesel which is the percent of Cetane in standard fuel

a)

Octane no.

b)

Conradson no.

c)

Cetane no.

d)

Aniline point

84.

Instrument indicating the percentages of carbon dioxide in the flue gases

a)

Calorimeter

b)

Ranarex indicator

c)

Orsat analyzer

d)

None of the above

85.

Carbon dioxide in the flue gases

a)

Calorimeter

b)

Ranarex indicator

c)

Orsat analyzer

d)

None of the above

86.

Fixed speed of a hydraulic turbine when it discharges water under wide open gates with no load

a)

Specific speed

b)

Runaway speed

c)

Wheel speed

d)

Peripheral speed

87.

Temperature at which oil will no longer pour freely or the temperature at which oil will solidify

a)

Dropping point

b)

Pour point

c)

Cloud point

d)

Fire point

88.

Portion of the capacity of the hydraulic power plant available at all times when energy is needed

a)

Secondary power

b)

Primary power

c)

Dump power

d)

Firm power

89.

Heat required to raise the temperature of one pound of that substance in one degree centigrade

a)

BTU

b)

Centigrade heat unit

c)

Joule

d)

Calorie

90.

If the volume of a given mass of a gas varies inversely as its absolute pressure, provided the temperature remains constant

a)

Charles law

b)

Avogadro’s law

c)

Boyles law

d)

Lenz law

91.

The total pressure of mixture is the sum of their partial pressures

a)

Avogadro’s law

b)

Charles law

c)

Daltons law

d)

Zeroth law

92.

Heat required to raise the temperature of one kg of that substance in one degree centigrade

a)

Sensible heat

b)

Joule

c)

Calorie

d)

Specific heat

93.

Amount of heat liberated by the complete combustion or burning of a unit substance of a unit – weight or volume of a fuel

a)

Specific heat

b)

Latent heat

c)

Heating value

d)

Sensible heat

94.

Change of internal energy is a function of temperature change only

a)

Boyles law

b)

Joules law

c)

Charles law

d)

Bernoulli’s principle

95.

Equal volumes of all ideal gases at a particular pressure and temperature contain same number of molecules

a)

Joules law

b)

Avogadro’s law

c)

Archimedes principle

d)

Lenz law

96.

When everything which is in disorder eventually goes to disorder

a)

First law of Thermodynamics

b)

Second Law of Thermodynamics

c)

Conservation of mass

d)

Newtonians Mechanic

97.

Temperature at which molecular motion ceases according to kinetic theory of heat

a)

Boiling point

b)

Furnace temperature

c)

Absolute temperature

d)

Flash point

98.

When two bodies are in thermal equilibrium with a third body, they are in thermal equilibrium with each other and hence are at the same temperature

a)

Zeroth law

b)

Lenz law

c)

Boyles law

d)

Joules law

99.

The volume of a given mass of gas varies directly as its absolute temperature provided pressure remains constant

a)

Lenz law

b)

Charles law

c)

2nd Law of Thermodynamics

d)

1st Law of Thermodynamics

100.

Instrument used to measure small difference in pressure or draft

a)

Bourdon

b)

Manometer

c)

Pitot tube

d)

Anemometer

101.

Quantity of heat required to change the state of a substance, from solid to liquid without change in temperature

a)

Latent heat of evaporation

b)

Latent heat of fusion

c)

Latent heat of sublimation

d)

Latent heat of air and water vapor

102.

The percentage by weight of the carboneous residue remaining after destructive distillation

a)

Aniline point

b)

Octane no.

c)

Conradson no.

d)

Cetane no.

103.

Temperature at which oil gives off vapor that burns temporarily when ignited

a)

Pour point

b)

Boiling point

c)

Flash point

d)

Critical point

104.

Reserve generating capacity available for service but not in service operation

a)

Reserve equipment

b)

Cold reserve

c)

Hot reserve

d)

Spinning reserve

105.

Reserve generating capacity in operation but not in service

a)

Hot reserve

b)

Cold reserve

c)

Spinning reserve

d)

None of the above

106.

Latent heat of water vapor in the combustion products is in the liquid form

a)

Latent heat value

b)

Higher heating value

c)

Lower heating value

d)

No answer

107.

Color of electrical pipes

a)

Red

b)

Green

c)

Light orange

d)

Ultra violet

108.

Distance from top of the boiler ceiling of the plant for standard application

a)

2000 mm

b)

3000 mm

c)

4000 mm

d)

5000 mm

109.

Color firefighting material pipes

a)

Safety red

b)

Light orange

c)

Yellow orche

d)

Blue

110.

Color of pipes for gases in either gaseous or liquefied form

a)

Yellow ohe

b)

Light blue

c)

Silver gray

d)

Green

111.

Water vapor content in the products of combustion is in the vapor state

a)

Higher heating value

b)

Gross calorific value

c)

Specific heat value

d)

Lower heating value

112.

A device that sits on top of the electric locomotive (LRT) and picks up electricity from overhead wires to run the train

a)

Hydrograph

b)

Absorption dynamometer

c)

Chassis dynamometer

d)

Overhead dynamometer

113.

A reserve generating capacity that is connected to the bus and ready to take load

a)

Hot reserve

b)

Cold reserve

c)

Effective reserve

d)

Spinning reserve

114.

A type of manometer used for measuring volume of liquids in tanks

a)

Pnuemercator

b)

Breeching

c)

Venturi tube

d)

Differential type

115.

The actual amount passing into and out of the treasury of financial venture

a)

Cash flow

b)

Capital

c)

Book value

d)

Salvage value

116.

Things that have value

a)

Property

b)

Assets

c)

Investment

d)

Real estate

117.

A term used to describe payment of an employee wherein an employee is called back to work after his regular days work

a)

Call back pay

b)

Back wages

c)

Call in pay

d)

Portal to portal pay

118.

Manner of liquidating a debt by installment usually at equal intervals of time

a)

Investments

b)

Depreciation

c)

Amortization

d)

Bonding

119.

Cost that does not change with the changes in volume of outputs

a)

Amortization

b)

Fixed costs

c)

Discount

d)

Book cost

120.

Funds that are required to make the enterprise or project a going concern

a)

Banking

b)

Accumulated amount

c)

Working capital

d)

Principal

121.

Instead of the profits being paid out to the stockholders or owners as dividends, they are retained in the business and used to finance expansion

a)

Flow back

b)

Bonds

c)

Deposits

d)

Retained earnings

122.

The reduction in value and marketability due to competition from newest products

a)

Obsolescence

b)

Fixed cost

c)

Depreciated cost

d)

Indirect cost

123.

Form of summary of assets, liabilities and net worth

a)

Production

b)

Breakeven point

c)

Balance sheet

d)

Balance method

124.

An index of short term paying ability

a)

Profit margin ratio

b)

Current ratio

c)

Acid test ratio

d)

Receivable turn over

125.

The worth of property which is equal to the original cost less depreciation

a)

Earning value

b)

Face value

c)

Scrap value

d)

Book value

126.

Ratio of annual revenues to the annual expenses

a)

Benefit ratio

b)

Benefit cost ratio

c)

Rate of return

d)

Income ratio

127.

These are the products of services that are required to support human life and activities that will be purchased in somewhat the same quantity even though the price varies considerably

a)

Luxuries

b)

Utilities

c)

Necessities

d)

Producers goods and services

128.

The length of time during which the property maybe operated at a profit

a)

Length of time

b)

Physical life

c)

Life

d)

Economic life

129.

In occurs in unique product of services is available only from a single supplier and entry of all possible suppliers prevented

a)

Competition

b)

Monopoly

c)

Profitability

d)

Inventory

130.

The difference between the book value and the actual lower resale value

a)

Sunk cost

b)

Salvage value

c)

Resale value

d)

Fixed cost

131.

Grand total of the assets and operational capability of a corporation

a)

Earning value

b)

Money market

c)

Investment

d)

Authorized capital