Unit I
Q1. Explain ac and dc voltage, frequency and voltage of ac.Explain Miniature Circuit
Breakers for domestic electric supply.
Q2. What arelightning conductor? How can electrical hazards be managed?
Unit II
Q3. What is Transmission of Heat?What are Modes of heat transfer? Explain with examples?
Q4. How the temperature from Fahrenheit to Celsius and Kelvin can be converted and Convert temperatures among them.
Unit III
Q5. Explain the basic Principle, construction and working of solar cooker with suitable diagram.
Q6. What is Heating effect of electric current?Explainthermostatic control and automation with bimetallic strip,and working of immersion heater
Combined
Q7. Answer the following questions (very short)
a) What are the basic needs of earthing?
b) Name any two good and bad conductors of heat
c) Complete the following sentences
Vacuum flask is designed to keep ……..
Bimetallic Strip is used in……
d)Write applications of MS-Word.
Unit IV
Q8. Explain the concept of operating system and features of WINDOWS, UNIXoperating systems.
Q9. Give Applications of MS-Word and describe commands like Open a new document, Open a saved document, Typing text, selecting text, copy-paste,cut-paste, saving file, closing file, renaming a file, page layout.
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