Skip to content
Early access — you're among the first to try PYQLabs. Share feedback
Concept drill

single phase induction motor

GATE Electrical Engineering · Induction Motors · 1996-2023

12
PYQs
92%
keyed
2
elite explanations
11
years appeared

Study anchor

Source-book anchor pending for this concept.

Practice action

Start latest PYQ

PYQs in this concept

All concepts →
2023 PYQ

A 10-pole, 50 Hz, 240 V, single phase induction motor runs at 540 RPM while driving rated load. The frequency of induced rotor currents due to backward field is

easyanswer keyelite explanation
2022 PYQ

The type of single-phase induction motor, expected to have the maximum power factor during steady state running condition, is

easyanswer keyelite explanation
2017 PYQ

A 375W, 230 V, 50 Hz capacitor start single-phase induction motor has the following constants for the main and auxiliary windings (at starting): $$Z_m=\left(12.50\;+\;j15.75\right)...

medium
2016 PYQ

The direction of rotation of a single-phase capacitor run induction motor is reversed by

easyanswer key
2014 PYQ

A single phase induction motor is provided with capacitor and centrifugal switch in series with auxiliary winding. The switch is expected to operate at a speed of 0.7 Ns, but due t...

mediumanswer key
2008 PYQ

A $$230V,$$ $$50Hz,$$ $$4$$ pole, single phase induction motor is rotating in the clockwise (forward) direction at a speed of $$1425$$ $$rpm.$$ If the rotor resistance at standstil...

mediumanswer key
2005 PYQ

In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve

mediumanswer key
2004 PYQ

The type of single-phase induction motor having the highest power factor at full load is

easyanswer key
2004 PYQ

A single-phase, 230 V, 50 Hz, 4 pole, capacitor-start induction motor has the following stand still impedances Main winding Z m =6.0 + j4.0Ω Auxiliary winding Z a = 8.0 + j6.0Ω The...

mediumanswer key
2003 PYQ

A single phase induction motor with only the main winding excited would exhibit the following response at synchronous speed

mediumanswer key
1999 PYQ

Starting torque can be obtained in the case of a single phase induction motor with identical main and auxiliary windings by connecting

easyanswer key
1996 PYQ

In case of a split phase motor, the phase shift between currents in the two windings is around

easyanswer key