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TOP 22 IMPORTANT QUATIONs WITH ANSWER OF CLASS 11 - THERMODYNAMICS (MCQs)

TOP 22 IMPORTANT QUATIONs WITH ANSWER OF CLASS 11 - THERMODYNAMICS (MCQs) Class 11 chemistry MCQs with answers are provided here for chapter 6 Thermodynamics. These MCQs are based on CBSE board curriculum and correspond to the most recent Class 11 chemistry syllabus. By practicing these Class 11 Multiple choice questions, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 11 Annual examinations as well as other entrance exams such as NEET and JEE. 1. A well stoppered thermos flask contains some ice cubes. This is an example of (a) Closed system (b) Open system (c) Isolated system (d) Non thermodynamics system Ans: (c) Solution: It is an isolated system 2. For the reaction C(s) + O2(g) → CO2(g) (a) △H >△U (b) △H < △U (c) △H = △U (d) None of these Ans: (c) Solution: Here △ng RT = 0 , because reactant and product contain same number of gaseous molecules. So that △H = △U + △ng RT ⇒ △H = △U 3. For an ideal gas, CV and CP are relat...
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ATD-Advanced technology demostration MCQ Unit -3

Q1-Scavenging air in diesel engine means A) Air used for combustion sent under pressure B) Forced air for cooling cylinder C) Burnt air containing products of combustion D) Air used for forcing burnt gases out of engine's cylinder during the exhaust period Answer D Q2-The pressure at the end of compression in the case of diesel engine is of the order of  A 6 kg/cm2  B 12 kg/cm2  C 20 kg/cm2  D 35 kg/cm2  Answer D  Q3- The thermal efficiency of a diesel cycle having fixed compression ratio, with increase in cut-off ratio will  A Increase  B Decrease  C Be independent  D May increase or decrease depending on other factors   Answer B  Q4-The fuel in diesel engine is normally injected at pressure of A 5-10 kg/cm2  B 20-25 kg/cm2  C 60-80 kg/cm2  D 90-130 kg/cm2  Answer D  Q5-Compression loss in I.C. engines occurs due to   A Leaking piston rings  B Clogged air-inlet slots  C Increase in clea...
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MCQs on Renewable Energy Technologies (RET - 22661)

click hear- https://amzn.to/33iRuqt Unit1 : Solar Thermal Systems 1. The study of various forms of energy and its conversion from one form to another is called .  a)Energy technology                                  b) Energy science c) Energy.  d) Power 2. is the energy obtained from sources that are essentially inexhaustible. a) Conventional Energy  b) Non-renewable Energy c) Renewable Energy  d) None of these 3. Which of this is (are) a type of Solar Collector(s) ? a) Flat plate collector  b) Cylindrical Parabolic c) Paraboloid mirror arrays  d) All of these 4. is provided at the bottom of tubing to minimize the heat losses by conduction a) Transparent covers  b) Absorber plate b) Thermal insulation  d) Casing 5. are provided at the above of coolant passages for trapping heat received by absorber plate. a) Transparent Cover  b) Absorber plate c) Thermal In...
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Emerging Trend in Mechanical Engg.

  Question Bank (I-scheme)  Name of subject: Emerging Trend in Mechanical Engg.  Subject code: 22652 Course: ME6I  Semester: VI  1. The fuel efficiency of Mild hybrids vehicle is more as compared to conventional hybrid systems by  ______ %? a) 10- 15% b) 7-15% c) 3-15% d) 1-15% 2. Which voltage is likely to be available from the battery of an electric vehicle also known as Mild  hybrid? a) 12V b) 24V c) 300V d) 100V 3. The MHEV system consists of which volt? a) 12V  b) 24V c) 48V d) none of the above.  4. world's first commercially mass-produced and marketed hybrid automobile was the Toyota  Prius. It became available on the Japanese market in what year? A 1998 B. 1996 C. 1997 D 1999 5. Hybrid vehicles convert energy that is normally lost through braking into electrical energy.  What is the term that is used for this recycling of energy? A Perpetual motion B Regenerative breaking C. Kinetic conversation D. Hybrid archamy 6. First ma...
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MCQ on Industrial Engineering and Quality Control (IEQ)

  MCQ on Industrial Engineering and Quality Control (IEQ) Chapter1: Work Study (Method Study and Work measurement) .1 Industrial Engineering: Definition, Need, objectives and scope click hear- https://amzn.to/33iRuqt Easy: Based on definition 1) Which of the following is an objective of industrial engineering? a) Improved productivity b) Reduced effective utilisation of workers c) Increased finished good inventory d) Increase time to market Answer: a) Explanation: Other options are contradictory to benefits 2) Preventive maintenance improves a) Material productivity b) Labour productivity c) Machine productivity d) Increased cost of production Answer: c) Explanation: other options not applicable for preventive maintenance Moderate: Based on understanding of concept 3) Which of the following is NOT an example of an input to the production system? a) Area of land b) Labour forces or man hours days c) Volume of material or fluid used d) Time taken to carry out a job Answer: d)  E...
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