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PPE

Total questions: 81

Worksheet time: 1hrs 21mins

Name
Class
Date
1.

1. Which of the following is a non-renewable resource?

a)

coal

b)

Forests

c)

Water

d)

Wildlife

2.

The primary source of the energy are

a)

coal,oil & Uranium

b)

hydrogen, oxygen and water

c)

wind, biomass and geothermal

d)

none of the above

3.

India first nuclear power plant was installed at

a)

Tarapore

b)

Kota

c)

Kalpakkam

d)

None

4.

Load factor during a period is

a)

Average Load / Installed Capacity

b)

Average Load / Maximum Load

c)

Maximum Load / Average Load

d)

Maximum Load / Installed Capacity

5.

The unvarying load, which occurs almost the whole day on the power plant is called

a)

Base load

b)

Peak load

c)

Average load

d)

Discrete load

6.

he system supplying base and peak loads will be more economical if power is supplied by

a)

Only gas turbine power plant

b)

Only thermal power plant

c)

Only Diesel power plant

d)

Combined operation of various power plants

7.

Which of the following is an essential requirement for a peak load plant

a)

Capability of working continuously

b)

Low operating cost

c)

Capability of quick start

d)

Economical and speedy repair

8.

Which of the following is not suitable to uses as peak plant?

a)

Hydroelectric power plant

b)

Gas power plant

c)

Diesel elected plant

d)

Nuclear power plant

9.

Annual depreciation cost calculated by

a)

(a) sinking fund method

b)

(b) straight method

c)

(c) Both a & b

d)

(d) estimates values

10.

In India the tariff for charging the consumers or the consumption of electricity is based on

a)

straight meter rate

b)

block meter rate

c)

reverse form of block meter rate

d)

two part tariff

11.

What type of cross sections does wind turbine blades have?

a)

Penta hedral cross section

b)

Air foiled type cross section

c)

Radar cross section

d)

Turbo cross section

12.

The turbine which is used in tidal power plant for getting continues power is

a)

simple impulse type

b)

reversible type

c)

propeller type

d)

None

13.

Most widely used material of solar cell is

a)

arsenic

b)

cadmium

c)

silicon

d)

steel

14.

The turbine which is used in tidal power plant for getting continues power is

a)

simple impulse type

b)

reversible type

c)

propeller type

d)

None

15.

The main objective of energy management is to

a)

Minimize energy cost

b)

Minimum environmental effects

c)

Maintain optimum energy procurement and utilization

d)

All of these

16.

The capital cost of generating equipment, transmission system and distribution system comes under

a)

Fixed capital

b)

Running capital

c)

Both fixed and running capital

d)

None

17.

The Function of solar collectors to convert

a)

Solar energy into electricity

b)

Solar energy into radiations

c)

Solar energy into thermal energy

d)

None

18.

Flat plat collector absorbs

a)

Directly radiation only

b)

Diffuse radiation only

c)

Direct and Diffuse both

d)

None

19.

Turbines with how many propellers are used in order to avoid vibrations?

a)

1

b)

2

c)

3

d)

4

20.

The original source of energy for fossil fuels come from the _____________ .

a)

Sun

b)

Earth's Crust

c)

Geothermal Energy

d)

Oceans

21.

An example of electromagnetic energy is ____________.

a)

Visible Light

b)

Electricity

c)

Biomass

d)

Match

22.

When steam or water is used to run a turbine, it can generate __________________.

a)

Electricity

b)

Oil

c)

Geothermal Energy

d)

Uranium

23.

Besides Coal and natural gas, another fossil fuel is ____________.

a)

Petroleum/Oil

b)

Biomass

c)

Electricity

d)

Uranium

24.

All of the following are renewable except

a)

Uranium

b)

Solar

c)

Hydropower

d)

Food Crops (Biomass)

25.

When chemical bonds break or form this is ______________.

a)

Chemical

b)

Motion

c)

Electrical

d)

Electromagnetic

26.

When chemical bonds break or form this is ______________.

a)

Chemical

b)

Motion

c)

Electrical

d)

Electromagnetic

27.

What is the best title for the following? Geothermal, Solar, Wind

a)

Fossil Fuels

b)

Nonrenewable energy

c)

Heat Energy

d)

Renewable Energy

28.

In India, largest thermal power station is located at ____________.

a)

Kota

b)

Sarni

c)

Chandrapur

d)

Nevyeli

29.

Rankine cycle efficiency of a good steam power plant may be in the range of

a)

15 to 20%

b)

35 to 45%

c)

70 to 80%

d)

90 to 95%

30.

What is the ideal site for power plant?

a)

In hilly regions

b)

On islands

c)

Near water resources

d)

In centre lands

31.

Which type of transportation system is ideal for transporting coal directly to the point of consumption?

a)

Road transportation

b)

Sea or river transportation

c)

Transportation by rail

d)

Transportation by air

32.

What is in plant coal handling system?

a)

Maintenance of coal during emergencies

b)

Maintenance of coal inside the boiler

c)

Maintenance of coal inside the power production area

d)

Maintenance of coal while transporting/moving it

33.

How the oxidation of coal is eliminated?

a)

By exposing it to the sunlight

b)

By turning the entire coal heap upside down periodically

c)

By circulating air uniformly

d)

By burning coal at very high temperatures

34.

What is the function of sizer in coal handling?

a)

To separate the coal depending on size

b)

To check the amount of fuel that is supplied

c)

To pick the coal of required size

d)

To divert the coal flow into different burners

35.

What is the purpose of bucket elevators in coal handling?

a)

Used to move coal horizontally

b)

Used to lift coal vertically

c)

Used to separate the crushed coal and pulverized coal

d)

Used to pour the coal vertically at right angles into furnace

36.

What is the function of Gab bucket conveyor in coal handling?

a)

To lift the coal vertically

b)

To crush the coal

c)

To move coal from one place to another

d)

To separate crushed coal and powdered coal

37.

What is the distance at which belt conveyors can convey?

a)

100m

b)

10m

c)

200m

d)

500m

38.

Which type of conveyor has shorter life span?

a)

Flight conveyor

b)

Belt conveyor

c)

Screw conveyor

d)

Grab Bucket conveyor

39.

In what speed range does screw conveyor run at?

a)

60 – 80 rpm

b)

20 – 100 rpm

c)

60 – 120 rpm

d)

90 to 180 rpm

40.

What is civil engineering?

a)

Decreasing pollution

b)

Building infrastructure in a city

c)

Making soap

d)

Creating a microchip

41.

High excess air in combustion of fuels results in __________

a)

smoky flame

b)

increased fuel consumption

c)

incomplete combustion

d)

none of the mentioned

42.

_________ has the widest inflammability limit (explosion limit) of all the gases.

a)

Carbon monoxide

b)

Methane

c)

c) Hydrogen

d)

Acetylene

43.

9. Oxygen percentage (by weight) in atmospheric air is?

a)

22

b)

20

c)

19

d)

21

44.

The most common method(s) used for burning of coal is (are)

a)

Stroker firing

b)

Pulverized fuel firing

c)

both (A) and (B)

d)

None of the above

45.

Direction of coal in overfeed stoker is

a)

Upwards

b)

Downwards

46.

Stokers are classified into

a)

over feed and underfeed

b)

open and close

c)

small , medium and large

d)

none of the above

47.

Travelling grate stoker is an example of ____

a)

Overfeed

b)

underfeed

c)

both overfeed and under feed

d)

none of the above

48.

Underfeed stokers are divided into ______

a)

single and multi retort

b)

chain and belt type

c)

all of the above

49.

A ‘stroker’ is a power operated fuel ___ mechanism

a)

Burning

b)

Feeding

c)

Handling

d)

Storage

50.

Underfeed mechanism is best suited for

a)

Peat and Lignite

b)

Bituminous and semi bituminous

c)

peat and bituminous

d)

all of the above

51.

The commercial sources of energy are

a)

solar, wind and biomass

b)

fossil fuels, hydropower and nuclear energy

c)

wood, animal wastes and agriculture wastes

d)

none of the above

52.

In India largest thermal power station is located at

a)

Kota

b)

Sarni

c)

Chandrapur

d)

Neyveli

53.

Rankine efficiency of a steam power plant

a)

improves in summer as compared to that in winter

b)

improves in winter as compared to that in summer

c)

is unaffected by climatic conditions

d)

none of the above

54.

In regenerative cycle feed water is heated by

a)

exhaust gases

b)

heaters

c)

draining steam from the turbine

d)

all above

55.

Reheat cycle in steam power plant is used to

a)

utilise heat of flue gases

b)

increase thermal efficiency

c)

improve condenser performance

d)

reduce loss of heat

56.

Economiser is used to heat

a)

air

b)

feed water

c)

flue gases

d)

all above

57.

In a shell and tube surface condenser

a)

steam and cooling water mix to give the condensate

b)

cooling water passes through the tubes and steam surrounds them

c)

steam passes through the cooling tubes and cooling water surrounds them

d)

all of the above varying with situation

58.

Belt conveyer can be used to transport coal at inclinations upto

a)

30°

b)

60°

c)

80°

d)

90°

59.

The maximum length of a screw conveyer is about

a)

30 metres

b)

40 metres

c)

60 metres

d)

100 metres

60.

Economisers improve boiler efficiency by

a)

1 to 5%

b)

4 to 10%

c)

10 to 12%

61.

Bucket elevators are used for

a)

carrying coal in horizontal direction

b)

carrying coal in vertical direction

c)

carrying coal in any direction

62.

The overall efficiency of thermal power plant is equal to

a)

Rankine cycle efficiency

b)

Carnot cycle efficiency

c)

Regenerative cycle efficiency

d)

Boiler efficiency x turbine efficiency x generator efficiency

63.

Pipes carrying steam are generally made up of

a)

steel

b)

cast iron

c)

copper

d)

aluminium

64.

In coal preparation plant, magnetic separators are used to remove

a)

dust

b)

clinkers

c)

iron particles

d)

sand

65.

1-The amount of air required for complete combustion of fuel is called:

a)

(A) Excess air

b)

(B) Free air

c)

(C) Stoichiometric air

d)

(D) None of the above

66.

C+O2 → CO2, Therefore 1kg of carbon requires how much kg of oxygen?

a)

(A) 1.67

b)

(B) 2.67

c)

(C) 3.67

d)

(D) 4.67

67.

3-Mechanical equivalent of heat is related to:

a)

(A) Conservation of mass

b)

(B) Conservation of energy

c)

(C) Conservation of momentum

d)

(D) None of the above

68.

4-The localized corrosion caused by oxygen in boilers is called:

a)

Scaling

b)

Pitting

c)

Erosion

d)

None of the above

69.

5-Which of the following equipment is used for boiling water treatment?

a)

(A) Pyrometer

b)

(B) Dearater

c)

(C) Hydrometer

d)

(D) None of the above

70.

6-What is the recommended hardness of boiler feed water?

a)

(A) Less than 5 ppm

b)

(B) Greater than 5 ppm

c)

(C) Greater than 1 ppm

d)

(D) Less than 1 ppm

71.

7-If steam water content is 5%, its dryness fraction is:

a)

(A) 95%

b)

(B) 0%

c)

(C) 5%

d)

(D) None of these

72.

8-The energy content of steam is called:

a)

(A) Entropy

b)

(B) Density

c)

(C) Specific volume

d)

(D) Enthalpy

73.

9-Only throttling calorimeter is used for measuring:

a)

A) Very low dryness fraction upto 0.7

b)

(B) Very high dryness fraction upto 0.98

c)

(C) Dryness fraction of only low pressure steam

d)

(D) Dryness fraction of only high pressure steam

74.

For same maximum pressure and temperature

a)

Otto cycle efficiency is higher than that of other two

b)

Diesel cycle efficiency is higher than that of other two

c)

Dual cycle efficiency is higher than that of other two

d)

Does not depends upon maximum pressure and temperature

75.

What is created by the boilers at the power plant?

a)

Smoke

b)

Steam

c)

Pollution

76.

What kind of day causes the peaking plants to be turned on? Check all below that are correct.

a)

Extra hot day

b)

Demand for electricity goes up

c)

Extra cold day

d)

When the air conditioning is running full blast

77.

How tall is one boiler?

a)

200 feet tall

b)

300 feet tall

c)

400 feet tall

d)

600 feet tall

78.

Coal is what kind of resource?

a)

Renewable

b)

Non-renewable

79.

What percentage of its own generated electricity is used by the power plant?

a)

3-5%

b)

6-7%

c)

20-25%

d)

7-10%

80.

What is the first step to generating electricity?

a)

Creation of steam

b)

Finding the coal

c)

Hiring employees

81.

Check all below that apply. The blades inside the turbine are like a:

a)

Windmill

b)

Propeller of an airplane

c)

Propeller of a boat engine

d)

Propeller of a remote controlled boat

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