NVS Lab Attendant Mock Test - 8 - NVS TGT/PGT MCQ

As Water of a River flows similarly water of Pool is Stagnant.

A man walks 30 meters towards South, then turning to his right, he walks 30 meters, then turning to his left, he walks 20 meters, again turning to his left, he walks 30 meters. The figure are given below -

50 meters far is he from his starting point.

Hence, "50 meters" is the correct answer.

As Diamond is made of Carbon similarly Ruby is made of Corundum.

As the result of Race is Fatigue similarly the result of Fast is Hunger.

A high-level delegation from Uttar Pradesh is set to participate in the World Economic Forum meeting in Switzerland, scheduled from January 15 to 19. The delegation aims to showcase the state’s strides towards becoming a trillion-dollar economy and transforming metropolitan towns into focal points across various sectors.

दिए गए विकल्पों में सही उत्तर विकल्प 1 ‘घड़ा’ है। अन्य सभी विकल्प इसके अनुचित उत्तर होंगे।

Key Points

• दिए गए विकल्पों में घन का अनेकार्थी शब्द 'घड़ा' नहीं है।
• घड़ा के अनेकार्थी शब्द हैं- घट, शरीर, हृदय, कम।
• घड़ा के पर्यायवाची शब्द हैं- गगरा, घट, कुभ, कलश।

'जीभ' का पर्यायवाची है- 'रसना'

• जीभ का अन्य पर्यायवाची शब्द - जिह्वा, रसज्ञा, चंचला।

Mistake Points

• वचन का पर्यायवाची शब्द - शब्द, वाक्य, वाणी, बोली, आश्वासन, वादा, प्रण, प्रतिज्ञा।
• ध्वनि का पर्यायवाची शब्द - नाद, रव, स्वर, ताल, आवाज।
• जीव का पर्यायवाची शब्द - रूह, प्राण, आत्मा, जीवात्मा।

Key Points

• जो शब्द समान अर्थ के कारण किसी दूसरे शब्द की जगह ले लेते हैं उन्हें पर्यायवाची शब्द कहते हैं।

Additional Informationकुछ महत्वपूर्ण पर्यायवाची शब्द:-

• सर्प - साँप, अहि, भुजंग, विषधर, व्याल, फणी, उरग, पन्नग, नाग।
• सिंह - शेर, वनराज, शार्दूल, मृगराज, व्याघ्र, पंचमुख, मृगेंद्र, केशरी, केहरी, केशी, महावीर।
• पक्षी - विहंग, विहग, खग, पखेरू, परिंदा, चिड़िया, शकुंत, अंडज, पतंग, द्विज।
• अश्व - घोड़ा, हय, तुरंग, वाजी, घोटक, सैंधव, तुरंग।
• मेघ - बादल, जलधर, पयोद, पयोधर, घन।
• इंद्र - पुरंदर, शक्र, शचिपति, सुरपति, देवराज, मघवा, देवेश
• कर्ण - सूर्यपुत्र, राधेय, कौन्तेय, अंगराज, सूतपुत्र।
• चंद्रमा - सुधाकर, शशांक, रजनीपति ,निशानाथ ,सुधांशु।

Synonym of Timid is Shy.
Shy usually means you are too embarrassed to say anything, like a shy person at a party doesn't want to join the conversation.
Timid like Maria said, is fearful of things, usually you imagine the word "timid" with a mouse, if you are timid like a mouse, you are cautious of everything around you and won't take risks unless you have to.

दिए गए विकल्पों में सही उत्तर विकल्प 4 है। अन्य विकल्प इसके सही उत्तर नहीं हैं।

Key Points

• 'लजाना' अकर्मक क्रिया है।
• जब कर्म का अभाव होता है तो क्रिया का फल कर्ता पर पड़ता है। जब वाक्य में कोई कर्म नहीं होता तो क्रिया अकर्मक होती है।
• जैसे- पक्षी उड़ता है।

अन्य विकल्प:

Mistake Points

• जो क्रिया संज्ञा, सर्वनाम व विशेषण से बनती है उसे नामधातु क्रिया कहते है।
• यौगिक क्रियाएं वे होती हैं जिनमे दो क्रियाओं का योग होता है। जैसे: खाना-पीना, उठना-बैठना, हंसना-गाना, आदि।
• यहाँ लजाना क्रिया अकर्मक क्रिया होगी क्योकि इसके साथ कर्म की आवश्यकता नहीं है।

Additional Information

क्रिया- जहां किसी कार्य के करने या होने का बोध हो, क्रिया कहलाता है। जैसे- मोहन जाता है।, वह खाना खाता है। आदि।

रचना की दृष्टि से क्रिया के दो भेद होते हैं-

Safe means free from harm. Its opposite is insecure.

Unscrupulous means having or showing no moral principles whereas conscientious means wishing to do one's work or duty well. Therefore, Unscrupulous is the antonym of Conscientious. 

Electron  microscope is used to understand the complex structure of the cell and its various organelles. when was it discovered.

Concept:

Conventional energy:

• Energy sources that have been in use for a long time are referred to as conventional energy sources.
• The conventional energy sources are coal, petroleum, natural gas, hydel energy, wind energy, and nuclear energy.

Explanation:

Coal:

• It is as hard as stone and is black in colour.
• Coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonisation.
• It was formed from the remains of vegetation, coal is also called a fossil fuel.
• The growing demand for energy was largely met by the fossil fuels coal and petroleum.
• Fossil fuels are non-renewable or conventional sources of energy.

Thus, coal is a conventional source of energy.

Additional Information

Nuclear energy:

• Nuclear energy is one of the least harmful conventional energy sources to the environment.
• Uranium, which is less expensive than coal, is used as a fuel in nuclear power plants.

Non-conventional energy:

• Non-conventional energy is defined as energy generated by wind, solar, small hydro, tides, geothermal heat, and biomass.

Solar energy:

• Sunlight generates solar energy.
• The photovoltaic cells are exposed to sunlight based on the type of electricity required.
• The energy is used for cooking and water distillation.

Wind energy:

• Wind energy is created by harnessing the power of the wind and is primarily used to power irrigation water pumps.
• In terms of wind power generation, India is the second-largest country.

Combustion or Burning:

• Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat
• Waste like plastic and rubber tires can be burned using this combustion process
• These make use of the heat energy generated by the combustion & incineration process to electricity
• It is the most effective method of waste disposal at reducing the volume of solid waste
• It is not an acceptable practice, as it creates lots of pollution and it is harmful to both the environment as well as organisms

Important Points:

Recycling:

• It is the process of converting waste materials into reusable objects to prevent waste
• The materials from which the items are made can be reprocessed into new products
• Recycling such material saves the product and it also reduces the amount of manufacture to make new products
• It also helps in energy saving and reducing global climate change

Landfill or Burying:

• Landfill refers the disposal of waste material by burying it
• It is extended storage area for non-biodegradable waste
• Landfill is an area, which prevent contamination from the waste entering the area surrounding by soil and water and it also helps to reduce odour and pests

Composting:

• Due to lack of adequate space for landfills, biodegradable yard waste is allowed to decompose in a medium designed for the purpose
• Only biodegradable waste materials are used in composting
• Good quality environmentally friendly manure is formed from the compost and can be used for agricultural purposes

A body weighs more at the poles than at the equator, because the earth is not a perfect square, but it is flattened at the poles. The distance between the equator and the center of the earth is less than at the poles; therefore the force of gravitation is more at the poles than at the equator; and so it weighs more at the poles than equator. 
Hence, the weight of a body at the poles will be greater than at the equator.

The typical steps in a conventional wastewater treatment follows the sequence is

Screening – Sedimentation – Aerobic oxidation – Disinfection – Discharge

The four processes of wastewater treatment are:

1. Preliminary Treatment

• Screening (screeners, grit chambers, and skimming tanks)

2. Primary Treatment

• Sedimentation (basically involves the process of sedimentation or settling),
• Chemical-aided Sedimentation

3. Secondary or Biological Treatment

• Activated sludge process
• Aerated lagoons         
• Sequencing batch reactor
• Aerobic digestion
• Trickling filters
• Rotating biological contractors

4. Tertiary or Advanced Treatment

• Solids removal
• Biological nitrogen removal
• Biological phosphorus removal
• Disinfection.

The motion of electrons in an atom is governed by electrostatic force, therefore the Universal law of gravity doesn't explain it.

In our atmosphere , presence of 78 % nitrogen after then presence of oxygen 21 % others 1 %. so the abundant non metal is oxygen

Urine is stored in the urinary bladder until it is released through the urethra.

where,
R = resistance,
ρ = resistivity,
ℓ = length,
A = area of cross-section

From the above relation: R ∝ ℓ
⇒ resistance increases due to an increase in length 
Because the electrons have suffered greater collisions with atoms in the material.

Newton's third law states that for every action, there is an equal and opposite reaction. This means that the forces are equal in magnitude (1), act simultaneously (3), and are opposite in direction (4). However, they act on different bodies, not the same one.

In dialysis, a patient's blood is passed through a dialysis machine. The dialysis machine takes over the job of their kidneys, removing waste products and balancing the levels of water and salts in the blood. Hemodialysis removes wastes and water by circulating blood outside the body through an external filter, called a dialyzer, that contains a semipermeable membrane. The blood flows in one direction and the dialysate flows in the opposite. The counter-current flow of the blood and dialysate maximizes the concentration gradient of solutes between the blood and dialysate, which helps to remove more urea and creatinine from the blood. The concentrations of solutes (for example, potassium, phosphorus, and urea) are undesirably high in the blood but low or absent in the dialysis solution, and constant replacement of the dialysate ensures that the concentration of undesired solutes is kept low on this side of the membrane.

So, the correct answer is 'Salt and urea'

The liver and pancreas are both exocrine and endocrine glands; they are exocrine glands because they secrete products—bile and pancreatic juice—into the gastrointestinal tract through a series of ducts, and endocrine because they secrete other substances directly into the bloodstream.

If we will take the example of ice, a solid so when melting or fusion takes place ice converts to water a liquid.