Related Questions

An electronic logic gate whose output is logic 0 only when all inputs are logic 1 is
A NOR
B NAND
C OR
D NOT
E None of the above
সাথী সাদৃশ্যানুমানমূলক আরোহ সম্পর্কে ধারণা লাভের জন্য কিছু গ্রন্থের সহায়তা নেয়। এক্ষেত্রে যে গ্রন্থসমূহ সমর্থনযোগ্য- i. A System of Logic ii. A Manual of Logic iii. Introduction to Logic নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i ii ও iii
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called
A liquation
B leaching
C levigation
D magnetic separation
Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
A Cresylic acid
B Xanthaies
C Pine oil
D All of the above
Ore concentration by froth floatation utilises the __________ of ore particles.
A Density difference
B Wetting characteristics
C Terminal velocities
D None of these
Leaching of uranium ore and gold ore is done in
A Centrifugal extractor
B Pachuka tanks
C Bollman extractor
D None of these
একটি XOR লজিক গেট নিম্নলিখিত কোন লজিক গেট/ গেটগুলোর সমবায়ে গঠিত হতে পারে? (An XOR logic gate can be constructed from the combination of which of the following logic gate/gates?)
A OR gate
B AND gate, OR gate, and NOT gate
C AND gate and NOT gate
D OR gate and NOT gate
Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?
A OR gates only
B AND gates and NOT gates
C AND gates, OR gates, and NOT gates
D OR gates and NOT gates
In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.
A (5, 19, 9)
B (7, 29, 13)
C (15, 59, 29)
D (12, 47, 23)
Positive logic in a logic circuit is one in which
A logic 0 and 1 are represented by 0 and positive voltage respectively
B logic 0 and, -1 are represented by negative and positive voltages respectively
C logic 0 voltage level is higher than logic 1 voltage level
D logic 0 voltage level is lower than logic 1 voltage level.

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