A. load is balanced only
B. load is unbalanced only
C. on balanced as well as unbalanced loads
D. none of the above
Correct Answer: on balanced as well as unbalanced loads ✔
Last Updated: June 28, 2018
Related MCQs
- Star/star transformers work satisfactorily when__________?
- Which of the following property is not necessarily desirable in the material for transformer core ?
- Distribution transformers are generally designed for maximum efficiency around__________?
- The value of flux involved m the e.m.f. equation of a transformer is__________?
- The main reason for generation of harmonics in a transformer could be__________?
- Gas is usually not liberated due to dissociation of transformer oil unless the oil temperature exceeds?
- The full-load copper loss of a trans¬former is 1600 W. At half-load, the copper loss will be__________?
- A Buchholz relay can be installed on__________?
- A transformer oil must be free from__________?
- The core used in high frequency transformer is usually__________?
- In a transformer the resistance between its primary and secondary is__________?
- Harmonics in transformer result in__________?
- Helical coils can be used on__________?
- The function of conservator in a transformer is__________?
- The thickness of laminations used in a transformer is usually__________?
- Material used for construction of transformer core is usually__________?
- Hysteresis loss in a transformer varies as CBmax = maximum flux density) ?
- The noise resulting from vibrations of laminations set by magnetic forces, is termed as__________?
- The transformer ratings are usually expressed in terms of__________?
- An ideal transformer has infinite values of primary and secondary inductances. The statement is__________?
- The chemical used in breather is__________?
- The chemical used in breather for transformer should have the quality of__________?
- The use of higher flux density in the transformer design__________?
- In a transformer the tappings are generally provided on__________?
- What will happen if the transformers working in parallel are not connected with regard to polarity ?
- If the percentage impedances of the two transformers working in parallel are different, then__________?
- If R2 is the resistance of secondary winding of the transformer and K is the transformation ratio then the equivalent secondary resistance referred to primary will be__________?
- Two transformers operating in parallel will share the load depending upon their__________?
- The power transformer is a constant__________?
- The purpose of providing iron core in a step-up transformer is?
- Greater the secondary leakage flux__________?
- Spacers are provided between adjacent coils?
- No-load current of a transformer has__________?
- Transformer breaths in when__________?
- The maximum efficiency of a distribution transformer is__________?
- Power transformers are designed to have maximum efficiency at__________?
- Natural oil cooling is used for transformers up to a rating of__________?
- In the transformer the function of a conservator is to__________?
- In a transformer routine efficiency depends upon__________?
- The no load current in a transformer lags behind the applied voltage by an angle of about__________?
- A common method of cooling a power transformer is__________?
- In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are__________?
- Efficiency of a power transformer is of the order of__________?
- Which winding in a transformer has more number of turns ?
- Primary winding of a transformer__________?
- A transformer cannot raise or lower the voltage of a D.C. supply because__________?
- A transformer transforms__________?
- In the transformer following winding has got more cross-sectional area__________?
- While conducting short-circuit test on a transformer the following side is short circuited?
- Which of the following is not a part of transformer installation ?
- The purpose of providing an iron core in a transformer is to__________?