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**Consider the following Boolean expression: (A̅ + B̅)[ A(B + C) ̅̅̅̅̅̅̅̅̅̅̅̅ ] + A(B̅ + C̅) It can be represented by a single three-input logic gate. Identify the gate. (A) AND (B) OR (C) XOR (D) NAND**0 Answer**How to crack GATE exam?**2 Answer**Which one of the following circuits is NOT equivalent to a 2-input XNOR (exclusive NOR) gate? -gate-cse-2011**3 Answer**A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches irrespective of the state of the other switch. **2 Answer**An n-channel FET having Gate-Source switch-off voltage VGS(OFF) = – 2 V is used to invert a 0 – 5 V square-wave signal as shown. The maximum allowed value of R would be ________ k (up to two decimal places).**0 Answer**Which are the best books to prepare for gate on the following subjects?**2 Answer**The channel resistance of an N-channel JFET shown in the figure below is 600 Ω -gate-ece-2011**1 Answer**The channel resistance of an N-channel JFET shown in the figure below is 600 Ω -gate-ece-2011**1 Answer**How to start preparation for GATE?**2 Answer**Let S be a sample space and two mutually exclusive events A and B be such that AÈB = S. If P(.) denotes the probability of the event, the maximum value of P(A)P(B) is? - Gate Computer Science 2014**1 Answer**What is the theoretical requirement of air (in m3 at STP) for the complete combustion of 100 m3 (at STP) of a fuel consisting of pure CH4? Assume that air contains 21 vol.% of oxygen. _____. (-Gate metallurgical engineering 2014)**1 Answer**The real root of the equation 5x − 2cosx −1 = 0 (up to two decimal accuracy) is ____. (Gate mechanical engineering 2014)**1 Answer**Which one of the following processes is preferred to from the gate dielectric (SiO2) of MOSFETs? -GATE EC 2015**1 Answer**A confined sandy aquifer has a thickness of 10 m and transmissivity of 0.75 m2 per day. Its hydraulic conductivity is _____ m/day. (-Gate geology and geophysics 2014)**1 Answer**Metal content (in metric tonnes) of an ore having specific gravity and assay values of 2.86 and 1.49 % respectively in a mining block 40 m long, 30 m wide and with an average thickness of 2.13 m is _______. (-Gate geology and geophysics 2014)**1 Answer**A steel rod was subjected to a fluctuating stress cycle that varied between a maximum of 400 MPa in tension to a minimum of 300 MPa in compression. What is the stress amplitude, in MPa?______. (-Gate metallurgical engineering 2014)**1 Answer**In a mouse genome, the numbers of functional Vα, Jα, Dβ, Jβ gene segments are 79, 38, 21, 2 and 11, respectively. The total number of possible combination for αβ T cell receptors are ______ x106 . (-Gate Biotechnology 2014 question paper)**1 Answer**A body starts yielding when it is subjected to a stress state with principal stresses of 250 MPa, 50 MPa and −50 MPa. What is the yield strength of the material, in MPa, if Tresca yield criterion is obeyed? (-Gate metallurgical engineering 2014)**1 Answer**A diesel engine has a compression ratio of 17 and cut-off take place at 10% of the stroke. Assuming ratio of specific heats ( γ ) as 1.4, the air-standard efficiency (in percent) is______. (Gate mechanical engineering 2014)**1 Answer**Let G be a group with 15 elements. Let L be a subgroup of G. It is known that L (not equal to) G and that the size of L is at least 4. The size of L is _______. - Gate Computer Science 2014**1 Answer