DRDO Technical Assistant Exam Papers

Will you please provide question papers of Technical Assistant Exam in DRDO? Actually my brother has applied for Technical Assistant Exam and wants to start its preparation. So pls provide question papers.

[Shaleen]

As you are looking for question papers of Technical Assistant Exam in DRDO, so here I am providing following papers:

DRDO Technical Assistant Exam Question Paper 1

Q.1:- The resistance of a strip of copper of rectangular cross-section is 2Ω. A metal of
resistivity twice that of copper is coated on its upper surface to a thickness equal to that of
copper strip. The resistance of composite strip will be
(a) 6Ω (b) 4/3Ω (c) 3/2Ω (d) 3/4Ω

Q.2:- The electric field lines and equipotential lines
(a) Are parallel to each other.
(b) Are one and the same.
(c) Cut each other orthogonally.
(d) Can be inclined to each other at any angle.

Q.3:- For an SCR, di/dt protection is achieved through the use of
(a) R in series with SCR.
(b) L in series with SCR.
(a) RL in series with SCR.
(c) RLC in series with SCR.

Q.4:- In a linear system, an input of 5 sin wt produces an output of 10 cos wt. The output
corresponding to input 10 cos wt will be equal to
(a) + 5 sin wt (b) - 5 sin wt (c) + 20 sin wt (d) – 20 sin wt.

Q.5:- A single instruction to clear the lower four bits of the accumulator I 8085 assembly
language is:
(a) XRI OHF (b) ANI FOH (c) XRI FOH (d) ANI OFH.

Q.7:- The p-type substrates in a conventional pn-junction isolated integrated circuit should be
connected to:
(a) Nowhere, i.e., left floating.
(b) A dc ground potential.
(c) The most positive potential available in the circuit.
(d) The most negative potential available in the circuit.