Quiz Questions

01. The concept on which Superposition theorem is based is (A) Reciprocity (B) Duality (C) Nonlinearity (D) Linearity

02. Which of the following power plants need the least period for installation? (A) Thermal power plant (B) Diesel power plant (C) Nuclear power plant (D) Hydroelectric power plant

03. Millman’s theorem yields (A) Equivalent resistance (B) Equivalent impedance (C) Equivalent voltage source (D) Equivalent voltage or current source

04. The power factor of an induction motor under no-load conditions will be closer to (A) 0.2 lagging (B) 0.2 leading (C) 0.5 leading (D) Unity

05. When a load resistance is removed from the output of a voltage divider circuit, the current drawn from the source (A) Decreases (B) Increases (C) Remains the same (D) Is cut off

06. In case of a double cage induction motor, the inner cage has (A) High inductance arid low resistance (B) Low inductance and high resistance (C) Low inductance and low resistance (D) High inductance and high resistance

07. Magnetic moment is a (A) Pole strength (B) Universal constant (C) Scalar quantity (D) Vector quantity

08. The rectifier instrument is not free from (A) Temperature error (B) Wave shape error (C) Frequency error (D) All of the above

09. Kirchhoff’s law is not applicable to circuits with (A) Lumped parameters (B) Passive elements (C) Distributed parameters (D) Nonlinear resistances

10. The output of a certain voltage divider is 12 V with no load. When a load is connected, the output voltage (A) Decreases (B) Increases (C) Remains the same (D) Becomes zero

11. With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals (A) 10 W (B) 20 W (C) 40 W (D) 60 W

12. The armature torque of the D.C. shunt motor is proportional to (A) Field flux only (B) Armature current only (C) Both (A) and (B) (D) None of the above

13. Depreciation charges are high in case of (A) Thermal plant (B) Diesel plant (C) Hydroelectric plant (D) None of the above

14. Pressure error can be measured by which of the following? (A) Differential bellows and strain-gauge (B) Selsyn (C) Strain gauge (D) Strain gauge and potentiometer

15. In D.C. machines the width of the duct is usually (A) 4 mm (B) 6 mm (C) 8 mm (D) 10 mm