Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

What does fuel cells produce?

A. Air
B. Water
C. Gas
D. Chemicals
Answer» C. Gas
2.

What is absorbed by the ozone?

A. Ultraviolet radiations
B. Sun Rays
C. Useful rays
D. All of these
Answer» B. Sun Rays
3.

Reflection of light back into the space occurs from

A. Clouds
B. Gases
C. Dust Particles
D. All of these
Answer» E.
4.

Which type of mining cause environmental pollution

A. Deep mining
B. Open caste mining
C. Opencast and deep mining
D. Digging
Answer» D. Digging
5.

Which power is the fastest source of electricity in the world?

A. Wind Energy
B. hydro Electricity
C. wave Energy
D. Nuclear Energy
Answer» B. hydro Electricity
6.

In 2000, how many people do not have access to clean water and sanitation?

A. 2 billion
B. 3 billion
C. 1 billion
D. 5 billion
Answer» C. 1 billion
7.

In 1995, Austrian Government had installed:

A. Solar Arrays
B. Solar Panels
C. Wind Panels
D. All of above
Answer» B. Solar Panels
8.

What percentage of people in developed countries has an access to piped supplies of clean water?

A. 100%
B. 50%
C. 80%
D. 20%
Answer» B. 50%
9.

How much of Argon is present in the atmosphere?

A. 0.93%
B. 0.45%
C. 0.34%
D. 0.34%
Answer» B. 0.45%
10.

Back tube of solar water heater is surrounded with a:

A. Filter
B. Vaccum
C. Cover
D. Pointed needle
Answer» C. Cover
11.

The effect of latitude on temperature is called as

A. Heat
B. Solar Energy
C. Insolation
D. Atmosphere
Answer» D. Atmosphere
12.

Where layer of the atmosphere act like a lid on the top of the pan above the active weather systems in the troposphere?

A. Stratosphere
B. Troposphere
C. Thermosphere
D. Ionosphere
Answer» B. Troposphere
13.

Three Gorges' project is contructed on the

A. Indus River
B. Yangtze river
C. Nile River
D. Ganges
Answer» C. Nile River
14.

Fusion of hydrogen nuclei, releases large amount of

A. Chemicals
B. Fire
C. Energy
D. Gas
Answer» D. Gas
15.

Sir 'Crispin Tickell' lectured widely on policy implications of:

A. Urbanization
B. Deforestation
C. Global warming
D. Climate change
Answer» E.
16.

Vegetable oil is used in

A. Patrol Engines
B. Diesel Engines
C. Machines
D. Industries
Answer» C. Machines
17.

50% of heat is absorbed by the

A. Surface of earth
B. Atmosphere
C. Stratosphere
D. All of these
Answer» B. Atmosphere
18.

'DSR' stands for

A. Modification of Custom Demand
B. Modification of Consumer Deal
C. Modification of Customer Demand
D. Modification of Consumer Demand
Answer» E.
19.

RCEP stands for

A. Royal Commission on Economical Pollution
B. Royal Control on Environmental Pollution
C. Royal Commission on Environmental Pollution
D. Robart Commission on Environmental Pollution
Answer» D. Robart Commission on Environmental Pollution
20.

What has replaced coal in trade?

A. Oil
B. Natural Gas
C. Nuclear Energy
D. Solar Energy
Answer» B. Natural Gas
21.

Green house effect is a

A. Natural Process
B. Artificial System
C. Manmade
D. All of these
Answer» B. Artificial System
22.

Generators are sited close to each other in the:

A. Mountain Areas
B. Plan Areas
C. Wind farm
D. Coastal Areas
Answer» D. Coastal Areas
23.

In which country in the world, the wind energy accounts for its 20% electricity?

A. Denmark
B. London
C. Germany
D. France
Answer» B. London
24.

In Denmark, 25% of electricity is generated by

A. Wind
B. Sunlight
C. Wave
D. Water
Answer» B. Sunlight
25.

Which type of energy is not extracted from sunlight?

A. Nuclear Energy
B. Thermal Energy
C. Coal
D. Fossilfuels
Answer» B. Thermal Energy
26.

Amount of energy used by rich countries are:

A. 8 toe per capita annually
B. 9 toe per capita annually
C. 7 toe per capita annually
D. 5 toe per capita annually
Answer» E.
27.

Which country exports coal to Japan?

A. Australia
B. Saudi Arabia
C. Iran
D. Pakistan
Answer» B. Saudi Arabia
28.

Over 20,000 water pumps are powered by:

A. Solar Arrays
B. Batteries
C. Solar Panels
D. Photo Voltaic Cells
Answer» E.
29.

In which layer of atmosphere the earth's clouds and weathers are concentrated?

A. Stratosphere
B. Troposphere
C. Thermosphere
D. Hydrosphere
Answer» C. Thermosphere
30.

Wind power generation can be beneficial to

A. Mountain Areas
B. Rural Areas
C. Urban Areas
D. Remote Areas
Answer» E.
31.

Organisation constructed four detailed energy scenarios for period of

A. 2030
B. 2010
C. 2020
D. 2090
Answer» D. 2090
32.

What is annual income per capita for developed countries ?

A. $US 22 000
B. $US 29 000
C. $US 28 000
D. $US 25 000
Answer» B. $US 29 000
33.

Persistent rain day and torrential downpour, causes an increase in

A. Surface run-off
B. Mountain run-off
C. Rain
D. Precipitation
Answer» B. Mountain run-off
34.

Why the elephant population in kenya decreased from 170,000 to 20,000?

A. Low Reserves
B. Ivory Poaching and habitat destruction
C. War
D. Disease
Answer» C. War
35.

The atmosphere contains how much percentages of Oxygen?

A. 20.95%
B. 23%
C. 21%
D. 19%
Answer» B. 23%
36.

A temperature of 100 million degrees celsius is required for the

A. Hydrogen Fusion Reaction
B. Solar Reaction
C. Nuclear Reaction
D. All of them
Answer» B. Solar Reaction
37.

Which country is in forefront of development of a hydrogen economy?

A. Iceland
B. Australia
C. Canada
D. USA
Answer» B. Australia
38.

In gas turbine, If maximum temperature of a thermal cycle raises

A. The efficiency of energy conversion increases
B. The efficiency of energy conversion deccreases
C. The efficiency of energy conversion remains constant
D. The volume of gas increases
Answer» B. The efficiency of energy conversion deccreases
39.

Which country is best known of its herd of big animals?

A. Muzambiq
B. Kenya
C. Pakistan
D. India
Answer» C. Pakistan
40.

The atmosphere gases are

A. Colorless
B. Transparent
C. Both a and b
D. None of these
Answer» D. None of these
41.

Which country produced 34.2 million tones of nuclear energy?

A. South Korea
B. Germany
C. Japan
D. Pakistan
Answer» B. Germany
42.

Which source of energy is limited by the lack of suitable physical conditions?

A. Geothermal Energy
B. solar energy
C. Wind energy
D. Hydro-Energy
Answer» B. solar energy
43.

In which areas the water vapors are 4 percent?

A. Deserts
B. Tropical Areas
C. Mountains
D. Poles
Answer» C. Mountains
44.

PVs stands for

A. Photovoltaic cells
B. Photovoltaic cells
C. Photon cells
D. Photo watt cells
Answer» D. Photo watt cells
45.

200 years ago, windmills were a common features of the

A. European Landscape
B. USA real state
C. Germany
D. Canada
Answer» B. USA real state
46.

Why the insolation is low in mid of winter at high latitudes?

A. Due to Short daylights
B. Sun is shinning from a very low angle
C. Both a and b
D. None of these
Answer» D. None of these
47.

Which natural energy is the input to drive the system?

A. Wave Energy
B. Solar Energy
C. Wind Energy
D. Nuclear Energy
Answer» C. Wind Energy
48.

Japan has installed rooftop

A. Solars
B. Turbines
C. Heating System
D. All of above
Answer» B. Turbines
49.

Non renewable energy included oil, gas and

A. Hydro power
B. Coal
C. Thermal Energy
D. Wind Energy
Answer» C. Thermal Energy
50.

What is the only certain way of finding whether the oil and gas are parent?

A. Deep Mining
B. Digging
C. Drilling
D. Opencast Mining
Answer» D. Opencast Mining