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### Quantities and Units Objective Questions

1. Which of the following is not an electrical quantity?A. powerB. distanceC. voltageD. current (Answers will be displayed at the end of the question’s)2. When these numbers are added, (87 × 105) + (2.5 × 106), the result isA. 1,120...

### Ohm’s Law Objective Questions

1. If you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be?A. 32 VB. 8 VC. 320...

### Series Circuits Objective Questions

1. There are five resistors in a given series circuit and each resistor has 6 V dropped across it. The source voltageA. is 30 VB. is 6 VC. depends on the current flowD. depends on the resistor values (Answers...

### Series-Parallel Circuits Objective Questions

1. When a load resistance is removed from the output of a voltage divider circuit, the current drawn from the sourceA. is cut offB. remains the sameC. decreasesD. increases (Answers will be displayed at the end of the question’s)...

### Branch, Loop and Node Analyses Objective Questions

1. What is the voltage drop across R3?A. 180 mVB. 180 mVC. 112 mVD. 11.25 V (Answers will be displayed at the end of the question’s)2. What is the current through R2?A. 125 mAB. 500 mAC. 250 mAD. 177 mA3. Find branch current IR2.A. 119.6 mAB. 113.0 mAC. –5.4 mAD. 5.4...

### Alternating Current and Voltage Objective Questions

1. A sawtooth wave has a period of 10 ms. Its frequency isA. 100 HzB. 10 HzC. 1,000 HzD. 50 Hz (Answers will be displayed at the end of the question’s) 2. A sine wave of 15 kHz is changing...

### Inductors Objective Questions

1. The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil isA. 18 mVB. 1.25 mVC. 1.8 mVD. 180 mV (Answers will be displayed at the end of...

### RC Circuits Objective Questions

1. When the frequency of the voltage applied to a series RC circuit is increased, the phase angleA. becomes erraticB. increasesC. remains the sameD. decreases (Answers will be displayed at the end of the question’s)2. A resistor and a capacitor are in...

### RLC Circuits and Resonance Objective Questions

1. A 24 ohm resistor, an inductor with a reactance of 120 ohm, and a capacitor with a reactance of 120 ohm are in series across a 60 V source. The circuit is at resonance. The voltage across the...

### Circuit Theorems in AC Analysis Objective Questions

1. Referring to the given circuit, how much power, in watts, is delivered to the speaker at the determined frequency if VS = 4.5 VRMS?A. 4.24 mWB. 424 mWC. 226 mWD. 2.26 mW (Answers will be displayed at the end of...

### Three-Phase Systems in Power Applications Objective Questions

1. In a Y-connected circuit, between each line voltage and the nearest phase voltage, there is a phase angle ofA. 120°B. 60°C. 30°D. 0° (Answers will be displayed at the end of the question’s) 2. In a certain Y-Y system,...

### Voltage, Current and Resistance Objective Questions

1. A material that does not allow current under normal conditions is a(n)A. valenceB. semiconductorC. insulatorD. conductor (Answers will be displayed at the end of the question’s)2. A two-terminal variable resistor is known as aA. wiperB. rheostatC. potentiometerD. thermistor3. An ohmmeter is an instrument for...

### Energy and Power Objective Questions

1. If it takes 400 ms to use 12,000 J of energy, the power iZA. 300 kWB. 30 kWC. 30 WD. 3 W (Answers will be displayed at the end of the question’s)2. A 6 V battery is connected...

### Parallel Circuits Objective Questions

1. Four 8 ohm speakers are connected in parallel to the output of an audio amplifier. If the maximum voltage to the speakers is 12 V, the amplifier must be able to deliver to the speakersA. 48...

### Circuit Theorems and Conversions Objective Questions

1. Referring to the given circuit, determine VTH and RTH if a 68 ohm resistor is connected in parallel across R2 and R3.A. 330 mV, 68 ohmB. 330 mV, 148 ohmC. 3.3 V, 148 ohmD. 3.3 V, 68 ohm (Answers will be displayed at the end of the question’s)2. Find RN for the circuit given.A. 154 ohmB. 120 ohmC. 34 ohmD. 68 ohm3. Find...

### Magnetism and Electromagnetism Objective Questions

1. There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb?A. 90,000 At/WbB. 14,400 At/WbC. 1,440 At/WbD. 9,000 At/Wb (Answers will be displayed at the...

### Capacitors Objective Questions

1. A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the currentA. decreasesB. ceasesC. increasesD. remains constant (Answers will be displayed at the end of the question’s) 2. When the voltage across a...

### Transformers Objective Questions

1. The primary winding of a power transformer should always beA. shortedB. fusedC. openD. switched (Answers will be displayed at the end of the question’s)2. How many primary volts must be applied to a transformer with a turns ratio of...

### RL Circuits Objective Questions

1. In a parallel RL circuit, there are 3 A rms in the resistive branch and 3 A rms in the inductive branch. The total rms current isA. 4.24 AB. 6 AC. 42.4 AD. 424 mA (Answers will be displayed at...

### Passive Filters Objective Questions

1. In a certain low-pass filter, fc = 3.5 kHz. Its passband isA. 7 kHzB. 0 Hz to 3.5 kHzC. 0 HzD. 3.5 kHz (Answers will be displayed at the end of the question’s)2. Referring to Problem 8, assume the input voltage...

### Time Response of Reactive Circuits Objective Questions

1. Referring this figure, on the falling edge,A. the resistor voltage jumps to +5 V and then decreases exponentially to zeroB. the capacitor voltage remains constantC. the resistor voltage jumps to –5 V and then goes back...

### Nuclear Engineering Objective Questions

1. The electron is identical withA. an ?-ray particleB. an ?-ray particleC. hydrogen ionD. positron (Answers will be displayed at the end of the question’s)2. The radius of nucleus is of the order ofA. 10-12 cmB. 10-14 cmC. 10-10 cmD. 10-8 cm3. The ratio of...

### Chemical Reaction Engineering Objective Questions

1. The excess energy of the reactants required to dissociates into products is known asA. threshold energyB. activation energyC. thermal energyD. binding energy (Answers will be displayed at the end of the question’s)2. Suppose doubling the concentration of a reactant...

### Fertilizer Technology Objective Questions

1. Phosphatic fertilizer is graded based on itsA. PCI3 contentB. H3PO4 contentC. P2O5 contentD. P content (Answers will be displayed at the end of the question’s)2. The catalyst used in the manufacture of nitric acid by ammonia oxidation process isA. Pt-Rh...

### Fuels and Combustion Objective Questions

1. Which would yield more energy when completely burned?A. propaneB. methaneC. butaneD. ethane (Answers will be displayed at the end of the question’s)2. How many cubic foot of air is required for the complete and perfect combustion of one cubic...

### Materials of Construction Objective Questions

1. Alpha iron is stableA. between 910 and 1403CB. upto 910CC. above 2000CD. above 1403C (Answers will be displayed at the end of the question’s)2. Which of the following pairs of elements might form an alloy?A. Mercury and platinumB. Iron and mercuryC. Zinc...

### Chemical Technology Objective Questions

1. The gas which is filled in tungsten lamps isA. HeB. H2C. ArD. O2 (Answers will be displayed at the end of the question’s)2. The setting of plaster of Paris takes place withA. hydrationB. dehydrationC. loss of CO2D. hydrolysis3. Washing soda isA. Na2CO3.2H2OB. Na2CO3.H2OC. Na2CO3D. Na2CO3.10H2O4. The percentage by volume...

### Environmental Engineering Objective Question and Answers

1. The operating pressure drop for the electrostatic precipitator including perforated plates varies in the range ofA. 2 to 6 in. H2O gB. 0.01 to 0.1 in. H2O gC. 0.2 to 0.5 in. H2O gD. 3 to 60...

### Economics Objective Questions

1. Rs. 10000 is invested now at 10% interest per annum on a compound basis. What will be the accumulated sum at the end of 5 yearsA. Rs. 17105.10B. Rs. 15000C. Rs. 16105D. Rs. 15105.10 (Answers will be displayed...

### Thermodynamics Objective Questions and Answers

1. The unit of energy isA. NB. WC. J/sD. J (Answers will be displayed at the end of the question’s)2. Which of the following is a state functionA. PressureB. WorkC. TemperatureD. Specific volume3. To double the volume of a given mass of an ideal gas...