DEPARTMENT OF ENGLISH
FIRST YEAR –I SEMESTER –PROFESSIONAL ENGLISH-I
QUESTION BANK
FOR ALL STREAMS
Professional English for Physical Sciences--PZ1SA
Professional English for Arts and Social Sciences-- PZ1AA
Professional English for Commerce and Management-- PZ1CA
Professional English for Life Sciences-- PZ1SB
ANSWER THE BELOW QUESTIONS
When we hear the word "crystals," we usually think of coloured minerals. But those are not the only
types of crystals. Graphite in pencils, table salt, and snow are crystals, too.
What all crystals have in common is an extremely well-organized molecular structure. In a crystal, all
of the atoms (or ions) are arranged in a regular grid pattern. For example, in the case of table salt
(NaCl), the crystals are made up of cubes of sodium (Na) ions and chlorine (Cl) ions. Each sodium ion
is surrounded by six chlorine ions. Each chlorine ion is surrounded by six sodium ions. It's very
repetitive, which is exactly what makes it a crystal!
Different minerals have different molecular compositions. These molecular compositions form
structures of different shapes. Table salt naturally forms cubic crystals. Quartz crystals, which are made
up of silicon dioxide (SiO2) molecules, form hexagonal prisms with hexagonal pyramids on either end.
Snow is a form of ice crystal. It is is made up of water (H 2O) molecules. These water molecules form
flat hexagonal plane crystals.
1. Synonyms:
A) Repetitive
B) Molecules
C) Compositions
2. Match the following:
A) Graphite - Chlorine ion
B) Sodium ion - Cubic crystals
C) Table salt - Pencils
3. Fill in the blanks:
A) Each chlorine ion is surrounded by ____ sodium ions.
B) Different minerals have different ______ compositions.
C) Quartz crystals are made up of _________.
4. Rearrange the following words in proper order:
A) six/ by/ chlorine/ is/ sodium/ surrounded/ each/ ions/ ion
B) of/ a/ ice/is/ crystal/ snow/ form
C) is/ up/ molecules/ snow/ water/ made/ of
5. Choose the right word:
A) The atoms are arranged in a _____ (irregular/regular) grid pattern.
B) All crystals in common have ___(unorganised/well-organized) molecular structure.
C) Different minerals have ____ (different/indifferent) molecular compositions.
,ANSWER THE BELOW QUESTIONS
The ocean is never still. Whether observing from the beach or a boat, we expect to see waves on
the horizon. Waves are created by energy passing through water, causing it to move in a circular
motion. However, water does not actually travel in waves. Waves transmit energy, not water, across
the ocean and if not obstructed by anything, they have the potential to travel across an entire ocean
basin.
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by
the friction between wind and surface water. As wind blows across the surface of the ocean or a lake,
the continual disturbance creates a wave crest. These types of waves are found globally across the
open ocean and along the coast.
More potentially hazardous waves can be caused by severe weather, like a hurricane. The strong
winds and pressure from this type of severe storm causes storm surge, a series of long waves that are
created far from shore in deeper water and intensify as they move closer to land. Other hazardous waves
can be caused by underwater disturbances that displace large amounts of water quickly such as
earthquakes, landslides, or volcanic eruptions. These very long waves are called tsunamis. Storm surge
and tsunamis are not the types of waves you imagine crashing down on the shore. These waves roll upon
the shore like a massive sea level rise and can reach far distances inland.
The gravitational pull of the sun and moon on the earth also causes waves. These waves
are tides or, in other words, tidal waves. It is a common misconception that a tidal wave is also a tsunami.
The cause of tsunamis is not related to tide information at all but can occur in any tidal state.
6. Revisit the text and explain these concepts:
A) Surface Waves.
B) Storm Surge.
C) Tsunamis.
7. Find the meaning of these words:
A) Hurricane
B) Massive
C) Hazardous
8. What creates a Wave Crest?
9. Write your own experience of admiring the waves.
10. Say whether it is True or False:
A) The gravitational pull of the sun and moon on the earth also causes waves.
B) Water travels in waves.
C) A tidal wave is also a tsunami.
11. Imagine yourself as a student of Computer Science, and you attend a Lab class, and you discuss the
use of learning computer graphics and cryptography with your friends.
12. What is a definition? Explain the steps of writing a definition with examples.
13. Write in about 50 words without making corrections or refining your text, the ways and means of
saving electricity.
14. Explain the Applied Number Theory of an ATM.
15. Write a note on LED.
16. Explain Extended Definitions with examples.
, 17. Read the following text and answer the questions given below.
THE EFFECT OF MOBILE PHONES
Can talking on a mobile phone be hazardous to your health? It is difficult to know for sure. Some
research suggests that heavy users of mobile phones are at a greater risk of developing cancerous brain
tumors. However, many other studies suggest that there are no links between cancer and mobile phone
use. The main problem with current research is that mobile phones have only been popular since the
1990s. As a result, it is impossible to study long term exposure to mobile phones. This concerns many
health professionals who point out that certain cancers can take over twenty years to develop. Another
concern about these studies is that many have been funded by the mobile phone industry or those who
benefit from it.
Over five billion people now use mobile phones daily, and many talk for more than an hour a day.
Mobile phone antennas are like microwave ovens. While both rely on electromagnetic radiation (EMR),
the radio waves in mobile phones are lower in frequency. Microwave ovens have radio wave frequencies
that are high enough to cook food, and they are also known to be dangerous to human tissues like those in
the brain. The concern is that the lower-frequency radio waves that mobile phones rely on may also be
dangerous. It seems logical that holding a heat source near your brain for a long period is a potential
health hazard.
Some researchers believe that other types of wireless technology may also be dangerous to human
health, including cordless phones, wireless gaming consoles, and laptop or tablet computers with wireless
connections. They suggest replacing all cordless and wireless devices with wired ones where possible.
They also say that many cordless phones can emit dangerous levels of Electromagnetic Radiation even
when they are not in use. They even suggest keeping electronic devices such as desktop and tablet
computers out of the bedroom, or at least six feet from the head while we're sleeping.
A growing number of health professionals worldwide are recommending that mobile phone users err
on the side of caution but this cannot be accepted, until more definitive studies can be conducted. They
use the example of tobacco to illustrate the potential risks. Many years ago, people smoked freely and
were not concerned about the effects of cigarettes on their health. Today, people know that cigarettes
cause lung cancer, though it is still unknown exactly how or why. Some doctors fear that the same thing
will happen with mobile phones. In May 2016, the UK's Independent newspaper reported on research by
the US government's National Toxicology Program that showed a slight increase in brain tumors among
rats exposed to the type of radio frequencies commonly emitted by mobile phones. This doesn't prove that
mobile phones can cause brain tumors in humans, but it does show that it's possible. As a result, many
experts now recommend texting or using headsets or speakerphones instead of holding a mobile phone to
the ear.
a. How does the usage of mobile phones affect our health?
b. In what way does a cordless phone harm our body?
c. What are the dangers caused by the microwave oven to humans?
d. Why should electronic gadgets be kept out of the bedroom while sleeping?
e. What was the finding of the US government's National Toxicology?
18. Imagine yourself as an employee in a multinational company as a Team Leader. You are explaining to
your teammates the recent project and the importance of completing it in a month and Clear the doubts
raised by your team members as and when they ask them.
19. Elaborate on “Role- Play”.
20. Explain “Process Description” with an example.
21. “Science can only flower out when there is an internal urge. It cannot thrive under external pressure.”
Connect these words of Sir CV Raman with his actions.