Q. A 5 kVA, 50 V/100 V, single-phase transformer has a secondary terminal voltage of 95 V when loaded. The regulation of the transformer is (A) 4.5% (B) 9% (C) 5% (D) 1% Ans: 5% Solution: Voltage regulation is the change in secondary terminal voltage from no load to full load at a specific power […]
Q. The symbols, 𝑎 and 𝑇, represent positive quantities, and 𝑢(𝑡) is the unit step function. Which one of the following impulse responses is NOT the output of a causal linear time-invariant system? (A) 𝑒+𝑎𝑡𝑢(𝑡) (B) 𝑒−𝑎(𝑡+𝑇)𝑢(𝑡) (C) 1 + 𝑒−𝑎𝑡𝑢(𝑡) (D) 𝑒−𝑎(𝑡−𝑇)𝑢(𝑡) Ans: 1 + 𝑒−𝑎𝑡𝑢(𝑡) Solution: a and T represents positive quantities.u(t) is
Q. Consider five people – Mita, Ganga, Rekha, Lakshmi and Sana. Ganga is taller than both Rekha and Lakshmi. Lakshmi is taller than Sana. Mita is taller than Ganga. Which of the following conclusions are true? (A) 1 and 3 (B) 3 only (C) 2 and 4 (D) 1 only Ans: 2 and 4 Solution:
Q. Given two sets X = {1, 2, 3} and Y = {2, 3, 4}, we construct a set Z of all possible fractions where the numerators belong to set X and the denominators belong to set Y. The product of elements having minimum and maximum values in the set Z is . (A) 1/12
Q. An award-winning study by a group of researchers suggests that men are as prone to buying on impulse as women but women feel more guilty about shopping. Which one of the following statements can be inferred from the given text? (A) Some men and women indulge in buying on impulse (B) All men and
Q. The ratio of the number of boys and girls who participated in an examination is 4:3. The total percentage of candidates who passed the examination is 80 and the percentage of girls who passed is 90. The percentage of boys who passed is . (A) 55.50 (B) 72.50 (C) 80.50 (D) 90.00 Ans: 72.50
Q. How many integers are there between 100 and 1000 all of whose digits are even? (A) 60 (B) 80 (C) 100 (D) 90 Ans: 100 We need the numbers between 100 and 1000 and all the digits should be even. As the required numbers are greater than 100 and less than 1000, all the
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Q. Newspapers are a constant source of delight and recreation for me. The _____trouble is that I read_______many of them. (A) even, quite (B) even, too (C) only, quite (D) only, too Ans: only, too
Q. It takes two hours for a person X to mow the lawn. Y can mow the same lawn in four hours. How long (in minutes) will it take X and Y, if they work together to mow the lawn? (A) 60 (B) 80 (C) 90 (D) 120 Ans: 80 Solution: Work done by X
Q. The missing number in the given sequence 343, 1331,_______, 4913 is (A) 3375 (B) 2744 (C) 2197 (D) 4096 Ans: 2197 73,113, _____, 173 ∵ 7, 11, 13 and 17 are all prime numbers. The series is cube of these numbers.
The missing number in the given sequence 343, 1331,_, 4913 is Read More »
