Industrial Drivers — Part 2 MCQs with Explanations

Repulsion motor is the correct answer to “Which of the following motors has series characteristics”. This question is standard in competitive examination syllabi for Industrial Drivers.

Rearing is the correct answer to “Which part of a motor needs maximum attention for maintenance”. This question is standard in competitive examination syllabi for Industrial Drivers.

High starting torque is the correct answer to “A wound rotor induction motor is preferred, as compared to squirrel cage induction motor, when major consideration is”. This question is standard in competitive examination syllabi for Industrial Drivers.

Squirrel cage induction motor is the correct answer to “________ has the least value of starting torque to full load torque ratio.”. This question is standard in competitive examination syllabi for Industrial Drivers.

Less than running torque is the correct answer to “The starting torque in case of centrifugal pumps is generally”. This question is standard in competitive examination syllabi for Industrial Drivers.

Unsuitable for heavy duty starting is the correct answer to “For a D.C. shunt motor which of the following is incorrect”. This question is standard in competitive examination syllabi for Industrial Drivers.

Both (A) and (B) is the correct answer to “Which of the following happens when star-delta starter is used”. This question is standard in competitive examination syllabi for Industrial Drivers.

Star-delta is the correct answer to “__________ method of starting a three phase induction motor needs six terminals.”. This question is standard in competitive examination syllabi for Industrial Drivers.

Individual drive is preferred is the correct answer to “In a paper mill where constant speed is required”. This question is standard in competitive examination syllabi for Industrial Drivers.

Reluctance motor is the correct answer to “Is preferred for synthetic fibre mills.”. This question is standard in competitive examination syllabi for Industrial Drivers.

Noise is the correct answer to “While selecting motor for an air conditioner which of the following characteristics is of great importance”. This question is standard in competitive examination syllabi for Industrial Drivers.

High power factor is the correct answer to “Besides a constant speed a synchronous rotor possesses which of the following advantages”. This question is standard in competitive examination syllabi for Industrial Drivers.

Synchronous motor is the correct answer to “__________ motor is a constant speed motor.”. This question is standard in competitive examination syllabi for Industrial Drivers.

Ward Leonard controlled D.C. motors is the correct answer to “Is preferred for automatic drives.”. This question is standard in competitive examination syllabi for Industrial Drivers.

Schrage motor is the correct answer to “In ________ the speed can be varied by changing the position of brushes.”. This question is standard in competitive examination syllabi for Industrial Drivers.

D.C. motors is the correct answer to “Which of the following motors are best for the rolling mills”. This question is standard in competitive examination syllabi for Industrial Drivers.

Ceiling fan is the correct answer to “In which of the following applications variable speed operation is preferred”. This question is standard in competitive examination syllabi for Industrial Drivers.

Any of the above is the correct answer to “Which of the following motors is usually preferred for kiln drives”. This question is standard in competitive examination syllabi for Industrial Drivers.

AC. slip ring motor is the correct answer to “For crane travel which of the following motors is normally used”. This question is standard in competitive examination syllabi for Industrial Drivers.

Synchronous motor is the correct answer to “For a motor-generator set which of the following motors will be preferred”. This question is standard in competitive examination syllabi for Industrial Drivers.

Cooling ranges is the correct answer to “Heat control switches are used in”. This question is standard in competitive examination syllabi for Industrial Drivers.

Slip ring is the correct answer to “In _________ method of staging three phase induction motors the starting voltage is not reduced.”. This question is standard in competitive examination syllabi for Industrial Drivers.

Mechanical braking is the correct answer to “Battery operated scooter for braking uses”. This question is standard in competitive examination syllabi for Industrial Drivers.

Resistance in rotor circuit is the correct answer to “In squirrel cage induction motors which of the following methods of starting cannot be used”. This question is standard in competitive examination syllabi for Industrial Drivers.

Horsepower rating increases but r.p.m. decreases is the correct answer to “The cost of an induction motor will increase as”. This question is standard in competitive examination syllabi for Industrial Drivers.

A 100 H.P. AC. three phase motor is the correct answer to “Which of the following alternatives will be cheaper”. This question is standard in competitive examination syllabi for Industrial Drivers.

All of the above is the correct answer to “Which of the following motors always starts on load”. This question is standard in competitive examination syllabi for Industrial Drivers.

All of the above is the correct answer to “For a particular application the type of electric and control gear are determined by which of the following considerations”. This question is standard in competitive examination syllabi for Industrial Drivers.

Cubic meters is the correct answer to “The size of an excavator is usually expressed in terms of”. This question is standard in competitive examination syllabi for Industrial Drivers.

Tonnes is the correct answer to “The capacity of a crane is expressed in terms of”. This question is standard in competitive examination syllabi for Industrial Drivers.

All of the above is the correct answer to “Heavy duty cranes are used in”. This question is standard in competitive examination syllabi for Industrial Drivers.