LMRC JE 2018 Electrical: Mini Mock 1 for ESE & GATE EE Exams

Question 1

Which one of the following is the minimum value of the sum of two integers whose product is 24?

Question 2

The product of the ages of Ankita and Sunita is 240. If twice the age of Sunita is more than Ankita’s age by 4 years. What is Sunita’s age?

Question 3

A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, the son's age five years back was:

Question 4

The product of Ramu’s age 5 yr ago with his age 7 yr later is 28. Ramu’s present age is

Question 5

A Boat rowed down the river at 18 Km/h and rowed up the river at 8 km/h. What is the velocity of stream?

Question 6

A swimmer can swim downstream at 12 km/h and upstream at 5 km/h. Find the speed of swimmer in still water.

Question 7

Three persons A, B and C are running in a race. A beats B by 10 seconds and C beats B by 3 seconds. If A beats B by 100 meters then what is speed of C?

Question 8

It takes 9 men to dig a well in 3 days. 18 women do the same job in 6 days. How long will it take for 3 men and 6 women to finish the job?

Question 9

Which statement is correct for OPAMP?

Question 10

How the lines of force due to charged particles are?

Question 11

Three bulbs B₁, B₂ and B₃ are connected to the mains as shown in figure. If B₃ is disconnected from the circuit by opening switch S, then incandescence of bulb B₁ will

Question 12

The charging current in a transmission line

Question 13

A 100 kVA 3-phase, 50 Hz, 3300/400 V transformer is ∆-connected on the H.V. side and Y-connected on the L.V. side. The resistance of the h.v. Winding is 3.5Ω per phase and that of L.V. winding 0.02Ω per phase. The equivalent resistance/phase of the transformer referred to the secondary is

Question 14

An R-L series circuit is connected to a voltage of v = 566 sin 314 tV. The circuit current is $Description: 13_Phasor-Algebra_files\image177.png$ What is the value of resistance?

Question 15

A single phase, two wire line operates at 50 Hz. The diameter of each conductor is 2 cm and the spacing between the conductors is 3 m. The capacitance of each conductor to neutral per km is

Question 16

The noise factor of an ideal amplifier expressed in db is .........

Question 17

A moving coil instrument gives full-scale deflection for 1 mA and has a resistance of

If a resistance of

is connected in parallel with the instrument, what is the maximum current it can measure?

Question 18

In the given question, what is the shorted terminal current in the equivalent current source?

Question 19

The Thevenin voltage across terminals a and b in the circuit in Figure is

Question 20

The iron-core is used to………………of the transformer.