Electrical Engineering · Question Bank

Instruments & Measurements

3 of 94 questions match. Answer in your head first, then check the solution.

#1📜 EE Pre-Board March 2013📘 PowerhouseMedium

The potential transformers of a line have a ratio of 132,000/66. These are connected wye-delta. The voltmeter reads 64 V. What is the voltage of the line?

A221.7 kV

B112.5 kV

C135.2 kV

D132 kV

#2📜 EE Pre-Board August 2014📘 PowerhouseMedium

A current of 20A flows through two ammeters A and B joined in series. Across A, the potential difference is 0.2V and across B, it is 0.3V. Find how the same current will be divided between the two when they are joined in parallel.

A10 A, 10 A

B12 A, 8 A

C14 A, 6 A

D16 A, 4 A

#3📜 EE Pre-Board August 2015📘 PowerhouseMedium

Calculate the force that will be exerted on the scale in pony-brake test when a 20-HP, 1,400 rpm motor is operating at full-load. The length of the brake arm is 3-ft, and the tare weight of the brake is 3.75lb.

A26.86 lb

B62.76 lb

C36.70 lb

D28.76 lb

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