Electrical MCQs

1. Separators are usually placed between opposing plates in leads acid cells to:    A.  prevent the electrodes … Read More

  1. A three-phase generating system has an efficiency of around:    A.  96% B.  90% C.  66% … Read More

1. With regards to measuring current and voltage in an AC circuit, modern AC instruments are calibrated to … Read More

1. The only AC waveform that produces a current flow with the same waveform as the voltage is … Read More

1. A capacitor consists of two conducting surfaces called plates, separated by an insulating material called the:    … Read More

1. In electric circuits, ‘inductance’ is the property of a circuit which:    A.  produces a voltage in … Read More

1. Resistance can be described as the:    A.  opposition to current flow B.  resist rate of the … Read More

1. The minimal electrical circuit must contain three parts-a source, a path and a:    A.  load B.  … Read More

1. Look at the following diagram:     The above diagram shows the magnetic field produced by a … Read More

1. In the electroplating process an external voltage is applied across a pair of electrodes, causing:    A.  … Read More

1. Matter can exist in any one of four states—solid, liquid, gas and:  A.  plasma B.  molecules C.  … Read More