POWER QUALITY SURPRIZE TEST-2

Which one is a set of electrical boundaries that allows a piece of equipment to function in its intended manner without significant loss of performance or life expectancy.

• a) Power field

• b) Power system

• c)  Power factor

• d)  Power quality

 Which of the following is a parameter that defines the quality of electrical power?

• a) Voltage

• b) Current

• c) Frequency

• d)Power Factor

The IEEE stands for

• a) Institute of Electrical and Electronics Engineers

• b) Indian Electrical and Electronics Engineers

• c) Institute of Electronics and Electrical Engineers

• d)International of Electronics and Electrical Engineer

Which of the following is a type of electrical transient that occurs in a power system?

• a) Impulsive transient

• b)Oscillatory transient

• c) Voltage sag

• d)Steady state

Range of high frequency oscillatory transient.

• a) Less than 5 kHz

• b) 5 to 500 kHz

• c) 0.5 to 5 MHz

• d)Greater than 5 kHz

What is the most common cause of power interruptions?

• a) Power system faults

• b) Equipment failure

• c) Cascading failure

• d) External factors (e.g., weather, animals, or human interference)

The CBEMA power quality graph plots the depth of voltage sags on the ________ axis against the duration of voltage sags on the ________ axis.

• a) horizontal, vertical

• b) vertical, horizontal

• c) time, voltage

• d) current, frequency

Which one ensures that any fault current likely imposed on a metal part will be safely conducted to ground or other grid systems serving as ground

• a) Grounding

• b)Bonding

• c) Coupling

• d) Isolation

Which is one means by which energy or electrical noise can couple from one electrical circuit to another.

• a) Reactance

• b) Capacitance

• c) Inductance

• d) Resistance

What is the primary purpose of a surge protector in electrical systems?

• a) To increase voltage

• b) To reduce current

• c) To protect against voltage spikes

• d) To improve power factor