Solid Grounding is used for Voltages?

Related Mcqs:

1. A 6 V battery output is divided down to obtain two output voltages. Three 2.2 kΩ resistors are used to provide the two taps. The two output voltages are___________?

   A. 2 V, 4 V
   B. 2 V, 2 V
   C. 2 V, 6 V
   D. 4 V, 6 V

2. The phase difference between the output and input voltages of a CE amplifier is _____________?

   A. 180o
   B. 0o
   C. 90o
   D. 270o

3. If the secondary coil has Ns turns and the primary Np turns the relation between secondary and primary voltages is given by_____________?

   A. Vs/Vp = Np/Ns
   B. Vs/Vp = Ns/Np
   C. Vp/Vs = Ns/Np
   D. Vp/Vs = Np/Ns

4. The position and velocity errors of a type-2 system are_____________?

   A. constant, constant
   B. constant, infinity
   C. zero, constant
   D. zero, zero

5. Which of the following is an advantage of electric traction over other methods of traction ?

   A. Faster acceleration
   B. No pollution problems
   C. Better braking action
   D. All of the above

6. Co-efficient of adhesion is________________-?

   A. high in case of D.C. traction than in the case of AC. traction
   B. low in case of D.C. traction than in the case of AC. traction
   C. equal in both AC. and D.C. traction
   D. any of the above

7. The coasting retardation is around_________________?

   A. 0.16 km phps
   B. 1.6 km phps
   C. 16 km phps
   D. 40 km phps

8. _________________method of starting a three phase induction motor needs six terminals ?

   A. Star-delta
   B. Resistance starting
   C. Auto-transformer
   D. None of the above

9. In series motor which of the following methods can be used for changing the flux per pole ?

   A. Tapped field control
   B. Diverter field control
   C. Series-parallel control
   D. Any of the above

10. With forward bias to a pn junction , the width of depletion layer__________________?

    A. Decreases
    B. Increases
    C. Remains the same
    D. None of the above