DMRC Electronics Engineering Paper-1 2016

A cistern has two pipes attached to it, one to supply and one to draw off. If both the pipes are opened together, the cistern is filled in 9 hours but if the waste pipe is opened one hour after the supply pipe, the cistern is filled in 7 hours. The time that will be taken by the supply pipe to fill the empty cistern is:

The first woman in NASA history to command space flight:

In an examination, pass marks are 36% of maximum marks. If an examine gets 17 marks and fails by 10 marks in this examination, what are the maximum marks?

If $$x = \frac{\sqrt{3} - \sqrt{2}}{\sqrt{3} + \sqrt{2}}$$ and $$y = \frac{\sqrt{3} + \sqrt{2}}{\sqrt{3} - \sqrt{2}}$$, then find the value of $$x^2 + xy + y^2$$.

Rhine valley in France is known for mineral deposits of:

An FM signal with modulation index mƒ is passed through a frequency tripler. The modulation index of the output signal will be

What is the correct sequence of the following step in the fabrication of a monolithic, bipolar junction transistor?
1. Emitter diffusion
2. Base diffusion
3. Buried layer formation
4. Epi-layer formation
Select the correct answer using the codes given below

Two sinusoidal signals having the same amplitude and frequency are applied to the X and Y inputs of a CRO. The observed Lissajous figure is straight line. The phase shift between the two signals would be

In a BJT circuit a pnp transistor is replaced by npn transistor. To analyse the new circuit

In 8085 microprocessor, the value of the most significant bit of the result following the execution of any arithmetic of Boolean instruction is stored in the