Test 3 General Electrical Engineering

Test 3 General Electrical Engineering

1 common voltage across parallel branches with different voltage sources can be determined by the relation V = (V₁ / R₁ + V₂ / R₂ + V₃ / R₃) / ( 1 / R₁ + 1 / R₂ +1 / R₃ .....) The statement is associated with which theorem ?

A. Superposition theorem. 
B. Thevenin’s theorem. 
C. Norton’s theorem. 
D. Millman’s theorem.Answer

2 The number of independent equations to solve a network is equal to 

A. number of chords. 
B. number of branches. 
C. sum of number of branches and chords. 
D. sum of number of branches , nodes and chords.Answer

3 Which of the following is not a vector ? 

A. Linear momentum. 
B. Angular momentum. 
C. Electric field. 
D. Electric potential.Answer

4 What is the dielectric constant of mica ? 

A. 200. 
B. 100. 
C. 3-8. 
D. 1-2.Answer

5 Magnetic moment is a 

A. pole strength. 
B. universal constant. 
C. scalar quantity. 
D. vector quantity.Answer

6 Temporary magnets are used in which of the following ? 

A. Loud speakers. 
B. Generators. 
C. Motors. 
D. All of these.Answer

7 Autotransformer makes effective saving on copper and copper losses, when its transformation ratio is equal to 

A. approx to one. 
B. less than one. 
C. greater than one. 
D. none of the above.Answer

8 The noise resulting from vibrations of laminations set by magnetic forces, is termed as 

A. magnetostriction. 
B. boo. 
C. hum. 
D. zoom.Answer

9 In circle diagram for induction motor, diameter of circle represents which of the following ? 

A. Slip. 
B. Rotor current. 
C. Running torque. 
D. Line voltage.Answer

10 Tarapur nuclear power plant has which type of reactor? 

A. Pressurized water reactors. 
B. Boiling water type. 
C. CANDU type reactors. 
D. None of these.Answer