Bissoy.com
Doctors Medicines MCQs Q&A

Related Questions

In a village 50% of the villagers produce rice, 40% of the villagers produce apples and 50% of the villagers produce vegetables, 20% of the villagers produce rice and apples both, 25% of the villagers produce apples and vegetables both, 20% of the villagers produce rice and vegetables both and 10% of the villagers produce all three. Find the percentage of villagers who do not produce anything.
The following question have three statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. An electricity company losses 16% of the supplied electricity in power losses. Find the loss in rupees per day. Statement I: Per unit price of electricity paid by the consumer is Rs. 3.5. Statement II: Daily electricity supply from the company is 1.65 lakh units. Statement III: The cost to the company for every 15000 unit electricity losses is Rs. 14500.
Consider the following statements regarding hydrogen fuel cell. 1. Fuel cell electric vehicles (FCEV) uses hydrogen, and an oxidant to create electricity by an electrochemical process. 2. Like a battery-electricity vehicle, fuel cell electric vehicles (FCEV) can also store energy. 3. Hydrogen fuel cells produce much smaller quantities of greenhouse gases. Which of the statements given above is/are correct?
Column A lists the cell parts and Column B lists the functions of the cell part. Column A Column B i. Cell wall A. Control what happens ii. Cell membrane B. Supports the cell. iii. Cytoplasm C. Controls what passes in and out of the cell. iv. Nucleus D. Cell reactions happen in it. Which one of the following options is correct?
A solid-oxide fuel cell is fed with carbon monoxide and reacts with air to produce CO2. This reaction will produce 2 electrons which are used to power an electric circuit external to the fuel cell. The reaction equation is shown below: 2CO(g) + O2(g) -> 2CO2(g) ΔHr° = -565.96 kJ/mol This reaction does not occur for other types of fuel cells which use a catalyst, such as polymerelectrolyte membrane or phosphoric-acid fuel cells. The presence of carbon monoxide on the anode side of these types of fuel cells will cause catalyst poisoning, reducing the efficiency and voltage of the fuel cell. Determine the rate of enthalpy change for a carbon dioxide production rate of 208 mol/hr. The extent of the reaction occurring in the fuel cell can be obtained by the following equation: where:
An electric bus has onboard instruments that report the total electricity consumed since the start of the trip as well as the total distance covered. During a single day of operation, the bus travels on stretches M, N, O and P, in that order. the cumulative distances travelled and the corresponding electricity consumption are shown in the Table below: Stretch Cumulative distance(km) Electricity used (kWh) M 20 12 N 45 25 O 75 45 P 100 57 The stretch where the electricity consumption per km is minimum is 
In a village there are 300 people. They produce different crops, out of all people 190 people produce paddy, 160 people produce wheat and 100 people produce both paddy and wheat. Find the number of people who neither produce paddy nor wheat. 
In an electrochemical cell that functions as a voltaic cell
With reference to the Waste-to-energy, consider the following statements: 1. It converts municipal and industrial solid waste into electricity and/or heat for industrial processing. 2. It is a form of energy recovery. 3. Most Waste-to-energy processes produce electricity and/or heat directly through combustion, or produce a combustible fuel commodity, such as methane, methanol, ethanol or synthetic fuels. Which of the above statement is/are correct?
With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity, consider the following statements: 1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products. 2. Fuel cells can be used for powering buildings and not for small devices like laptop computers. 3. Fuel cells produce electricity in the form of Alternating Current (AC) Which of the statements given above is/are correct?