Q.1.
The function of power modulator isregulate the power flow from source to the motor to enable the motor todevelop the torque speed characteristics required by the load
Q.2.
The process of converting Fixed DC voltage into variable DC Voltage is called as-------------------------
Q.3.
The basic elements of a electric drive are
Q.4.
In __________ drive each machine is driven by its own separate motor with the help of gears and pulley
Q.5.
Which of the following is the basic elements of a electric drive?
Q.6.
Which of the following type electric drive is used in cranes?
Q.7.
Which of the following was the first city in india to adapt electric traction
Q.8.
Drives are nothing but
Q.9.
The value of the frequency of the DC supply.
Q.10.
In case of ________ free running and coasting periods are generally long.
Q.11.
Overhead lines for power supply to tramcars are at a minimum height of
Q.12.
The return circuit for tramcars is through
Q.13.
_______ frequency is not common in low frequency traction system
Q.14.
ForkV single phase system power supply frequency is
Q.15.
Power for lighting in passanger coach, in a long distance electric train, is provided
Q.16.
In India, electrification of railway track was done for the first time in which of thefollowing years ?
Q.17.
Which of the following happens in Kando system ?
Q.18.
For which of the following locomotives the maintenance requirements are theleast?
Q.19.
Which of the following happens in Kando system ?
Q.20.
The value of the frequency of the DC supply.