Basic Electrical and Electronics Engineering Subject Code BTEE-101 Jan 2023 PTU Paper
Download Previous Year PTU University Question Paper of Basic Electrical and Electronics Engineering Subject Code BTEE-101 Jan 2023 PTU Paper Batch 2011 Onwards B.Tech PTU Jan 2023 Question Paper
B.Tech. (EE-2011 Batch)
BASIC ELECTRICAL AND ELECTRONICS ENGINEERING
Subject Code : BTEE-101 M Code : 54097
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each. 2. SECTION – B & C have FOUR questions each, carrying EIGHT marks each. 3. Attempt any FIVE questions from SECTION B & C, selecting atleast TWO questions from each of these SECTIONS B & C.
Power Plant Engineering 4th Sem Batch 2011 Onwards B.Tech PTU April 2019 Question Paper
SECTION-A
Q1. Write Briefly
a) Draw the phasor diagram of Electric field: ܧ൫e ି୨ଵ୲ + eା୨ଵ୲൯. Also, write it in rectangular form.
b) Give the analogous terms of magnetic circuit related to an electrical circuit.
c) Draw the circuit diagram and waveforms of a bridge rectifier.
d) Write the differences between Bipolar Junction Transistor and Field Effect Transistors.
e) Define synchronous speed. How does this speed relate to slip?
f) Convert the (1234)10 number into the hexadecimal number.
g) Which motor is preferred for speed regulation?
h) Convert the decimal number 39.75 to hexadecimal.
i) Draw the characteristics curve of positive and thermistor.
j) A choke coil when connected across a 500V, 50Hz supply takes 1 A at 0.8 power factor. What capacitance must be placed in parallel with it so as to make the power factor of the combination unity?
SECTION-B
Q2. Attempt any five questions. 5×6=30
2. Find the amount of electrical energy expensed in raising the temperature of 45 litres of water by 73∘C. To what height could a weight of 5 tonnes be raised with the expenditure of same energy?Assume efficiencies of the heating equipment and lifting equipment to be 90% and 70% respectively.
3. a) Discuss and derive the resonance in a series circuit. Give its properties.
b) A voltage v= 100sin 314t is applied to a circuit consisting of a 25Ω resistor and an 80ߤF capacitor in series. Determine:
i) An expression for the value of the current flowing at any instant.
ii) The power consumed.
iii) The p.d. across the capacitor at the instant when current is one half of its maximum
value.
4. Describe the concept of bias stabilization in transistors and amplifiers.
5. Establish the relation for emf induced in the secondary winding of transformer. What are types
of losses occur in transformers? Establish the condition of maximum efficiency of transformer.
SECTION-C
Q3. Attempt any TWO questions. 2×10=20
6. Discuss the types of D.C. motors. Compare their Torque, speed characteristics and applications.
7. Distinguish between latch and flip flop. Explain the working of cross coupled NAND gate as flip flop. Draw the truth table of RS, JK, D and T flip flops. Convert the RS flip flop into JK flip flop. How edge triggered flip flop different from level triggered?Give its advantage.
8. Write detailed short note on the following:
a) Universal Gates
b) Field Effect transistors
9. a) Explain the principle of working of a digital multimeter.
b) What is LVDT? Give its principle of working, applications,advantages and disadvantages.
Draw the phasor diagram of Electric field: ܧ൫e
ି୨ଵ୲ + eା୨ଵ୲൯. Also, write it in rectangular form.
Give the analogous terms of magnetic circuit related to an electrical circuit.
Draw the circuit diagram and waveforms of a bridge rectifier.
d) Write the differences between Bipolar Junction Transistor and Field Effect Transistors.
e) Define synchronous speed. How does this speed relate to slip?
f) Convert the (1234)10 number into the hexadecimal number.
g) Which motor is preferred for speed regulation?
h) Convert the decimal number 39.75 to hexadecimal.
i) Draw the characteristics curve of positive and thermistor.
j) A choke coil when connected across a 500V, 50Hz supply takes 1 A at 0.8 power factor.
What capacitance must be placed in parallel with it so as to make the power factor of the
combination unity?
Basic Electrical and Electronics Engineering Subject Code BTEE-101 Jan 2023 PTU Paper Click Here
Explain the flue gas and water steam flow diagrams of a steam power plant.
Explain how hydroelectric plants are classified.
Prove that a mass defect of 1 amu is equivalent to about 931 MeV of energy.
Principle of operation of a closed cycle gas turbine plant.
Compare it with open cycle gas turbine plant.
Advantages of combined operation of different plants.
Basic Electrical and Electronics Engineering Subject Code BTEE-101 Jan 2023 PTU Paper
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6. Discuss the types of D.C. motors. Compare their Torque, speed characteristics and applications.
7. Distinguish between latch and flip flop. Explain the working of cross coupled NAND gate as flip flop. Draw the truth table of RS, JK, D and T flip flops. Convert the RS flip flop into JK flip
flop. How edge triggered flip flop different from level triggered?Give its advantage.
8. Write detailed short note on the following:
a) Universal Gates
b) Field Effect transistors
9. a) Explain the principle of working of a digital multimeter.
9.b) What is LVDT? Give its principle of working, applications, advantages and disadvantages.
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