#semester 2
- What are the Characteristics of electromagnetic radiations? Characteristics of electromagnetic radiations: Wavelength: It may be defined as the distance between two neighbouring crests or troughs of w... 2
- Explain any 2 types of wet corrosion with diagram and reactions Answer: Two types of wet (electrochemical) corrosion are (i) hydrogen evolution type, in acidic medium, where 2H^++2e^-→ H₂ at the cathode,... 2
- What is the principle of spectroscopy? The basic principle shared by all spectroscopic techniques is to shine a beam of electromagnetic radiation onto a sample, and observe how it... 1
- Sacrificial anode method In this protection method, the metallic structure to be protected is connected by a wire to a more anodic metal, so that all the corrosion i... 1
- C programming Viva Questions semester 2 Download 1. Which type of language is C? Ans- C is a high–level language and general-purpose structured programming language. 2. What is a c... 1
- Evaluate ∫∫(x2 - y2)xdx dy over the area in the first quadrant bounded by the circle x2 + y2 =a2. Answer: dfraca⁵15 The region is the quarter circle x²+y²≤ a² , x≥0 , y≥0 . Change to polar coordinates: x = rcosθ , y = rsinθ , dx dy = r dr... 1
- Distinguish between Electrolytic cell and Voltaic Cell Answer: An electrolytic cell uses electrical energy to bring about a non-spontaneous chemical reaction, whereas a voltaic (galvanic) cell pr... 2
- Q1) Define a) corrosion b) electrode potential c) electrochemical cell d) wavelength e) electroplating Answer: Definitions of corrosion, electrode potential, electrochemical cell, wavelength and electroplating are given below. a) Corrosion: De... 2
- How to draw corner square prism
- Describe the phenomena of Fluorescence and Phosphorescence. Fluorescence and phosphorescence are both optical phenomena involving the emission of light by certain substances when they absorb energy fr... 1
- Give the advantages of spectroscopic techniques Identification and characterization of substances. Accurate quantitative analysis. Non-destructive analysis. Versatility across different sa... 1
- Name the different types of molecular spectroscopy. Explain NMR spectroscopy Answer: Types of molecular spectroscopy: rotational (microwave), vibrational (infrared), Raman, electronic (UV-visible), nuclear magnetic re... 1
- Write a note on electromagnetic spectrum Answer: the electromagnetic spectrum is the complete range of electromagnetic radiation arranged in order of wavelength (or frequency), from... 1
- Give the different types of electrochemical cell .Explain any 2 Answer: electrochemical cells are of two main types: (1) galvanic (voltaic) cells, which convert chemical energy into electrical energy, and... 1
- Write a note on calomel electrode Answer: the calomel electrode is a secondary reference electrode made of mercury in contact with mercurous chloride (calomel, Hg₂Cl₂ ) and a... 1
- Define standard electrode potential Answer: the standard electrode potential ( E^° ) of an electrode is its potential measured relative to the standard hydrogen electrode (SHE,... 1
- What is Cathodic protection? Explain impressed current method with diagram The principle involved in this method is to force the metal to be protected to behave like a cathode, thereby corrosion does not occur. Ther... 1
- Write short notes on Pitting corrosion b) stress corrosion c) Conc.cell d) Intergranular e) Galvanic cell. a) Pitting corrosion Pits are holes or cavities that are developed on the metal surface when the protective oxide film breaks. Around such p... 1
- Define Corrosion. Explain mechanism of corrosion by oxygen absorption mechanism Answer: Corrosion is the destruction or deterioration of a metal by chemical or electrochemical reaction with its environment. In the oxygen... 1
- Engineering Drawing paper pattern , FE sem 2 Mumbai University Engineering Drawing paper pattern , FE sem 2 Mumbai University 1
- How to draw isometric diagrams in autocad 2007 step 01 : command "snapstyl" step 02 : Enter value ="1" step 03 : for switching dimensions F5 for circle el 2
- A square prism with side of base 40 mm and axis height 60 mm is resting on HP on one of its base corner such that Answer: Solve in two stages: first draw the prism with its axis perpendicular to the H.P. (base on H.P.), then tilt the front view about a b... 1
- A cube 25 mm edge is placed centrally on the top of another square block of 40 mm edge and 15 mm thick. (i) Draw two isometric axes AB and AD of length 40 mm, each making an angle of 30° with the horizontal line. Draw BC and CD parallel to AD a... 1
- The front and top views of a straight line PQ measures 50 mm and 65 mm, respectively. Answer: True length of PQ ≈ 74 mm, θ (with H.P.) ≈ 28.5°, φ (with V.P.) ≈ 47.5°. HT coincides with p (20 mm in front of V.P.); VT is about 1... 1