The best place to install a capacitor is___________?

A. Very near to inductive load
B. Across the terminals of the inductive load
C. Far away from the inductive load
D. Any where

Power factor of an electrical circuit is equal to____________?

A. r/z
B. cosine of phase angle difference be-tween current and voltage
C. kw/kva
D. ratio of useful current to total cur¬rent iw/i

In a series resonant circuit, the impedance of the circuit is___________?

A. Minimum
B. Maximum
C. Zero
D. None of the above

The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that

A. Both waves must have same frequency
B. Both waves must have identical peak values
C. Both waves must have zero value at the same time
D. None of the above

For the same peak value which of the following wave will ‘have the highest r.m.s. value?

A. Square wave
B. Half wave rectified sine wave
C. Triangular wave
D. Sine wave

The power consumed in a circuit element will be least when the phase difference between the current and voltage is__________?

A. 180″
B. 90°
C. 60°
D. 0°

The period of a sine wave is _____ seconds. Its frequency is

A. 20 hz
B. 30 hz
C. 40 hz
D. 50 hz

منگلا ڈیم کس دریا پر بنایا گیا ہے؟

A. دریائے جہلم.❶
B. دریائے چناب.❷
C. دریائے راوی.❸
D. دریائے سندھ.❹

سوات میں واقع درے کا نام بتائیں؟

A. درہ شانگلا.❶
B. درہ خوجک.❷
C. درہ ٹوچی.❸
D. درہ خیبر.❹

کوٹری ڈیم کب تعمیر ہوا تھا؟

A. 1950.❶
B. 1955.❷
C. 1960.❸
D. 1975.❹