DCMT(DC machines and transformers), Mid-1 Previous year Question paper, R23 regulation

DCMT MID-1 Previous year  Question paper R23 regulation 

  Hi, here we have the DCMT Mid-1 PYQ (Previous Year Question Paper). The Mid-1 exam mainly focuses on two units:

➡️ DC Machines
➡️ Speed Control and Testing of DC Machines

Now, let's first look at the concepts covered in each unit.

UNIT – I: DC Machines

Construction and principle of operation of DC machines – EMF equation for generator - Excitation techniques – characteristics of DC generators –applications of DC Generators, Back-emf and torque equations of DC motor – Armature reaction and commutation.

UNIT – II: Speed Control and Testing of DC Machines

Characteristics of DC motors – losses and efficiency – applications of DC motors. Necessity of a starter – starting by 3-point and 4-point starters – speed control by armature voltage and field current control – testing of DC machines – brake test, Swinburne’s test –Hopkinson’s test–Field 

Test.

📜Mid-1 Paper Overview

Part-A (10 Marks):

It contains 5 short questions, each carrying 2 marks.

Part-B (30 Marks):

It contains 3 sets of questions. Each set has 4 questions, out of which 2 questions must be answered. Each set carries 10 marks.