Questions and answers for exam Preparation

MCQs

Total Questions : 126 | Page 1 of 13 pages

Question 1. A value of x that satisfies the equation log x + log (x “ 7) = log (x + 11) + log 2 is

Discuss Question

Answer: Option D. -> 11

-NA-

Question 2. A smuggler has 10 capsules in which five are filled with narcotic drugs and the rest contain the
original medicine. All the 10 capsules are mixed in a single box, from which the customs officials
picked two capsules at random and tested for the presence of narcotic drugs. The probability that
the smuggler will be caught is

0.50
0.67
0.78
0.82

Discuss Question

Answer: Option C. -> 0.78

-NA-

Question 3. Ravi is taller than Arun but shorter than Iqbal. Sam is shorter than Ravi. Mohan is shorter than
Arun. Balu is taller than Mohan and Sam. The tallest person can be

Mohan
Ravi
Balu
Arun

Discuss Question

Answer: Option C. -> Balu

-NA-

Question 4. The documents expose the cynicism of the government officials “ and yet as the media website
reflects, not a single newspaper has reported on their existence. Which one of the following inferences may be drawn with the greatest accuracy from the above
passage?

Nobody other than the government officials knew about the existence of the documents.
Newspapers did report about the documents but nobody cared.
Media reports did not show the existence of the documents.
The documents reveal the attitude of the government officials.

Discuss Question

Answer: Option D. -> The documents reveal the attitude of the government officials.

-NA-

Question 5. Let f(x) = x “ [x], where x â‰¥ 0 and [x] is the greatest integer not larger than x. Then f(x) is a

monotonically increasing function
monotonically decreasing function
linearly increasing function between two integers
linearly decreasing function between two integers

Discuss Question

Answer: Option C. -> linearly increasing function between two integers

-NA-

Question 6. A beaker contains 50 cc of an aqueous dye solution of concentration c (w/v). 25 cc of this solution
is removed and replaced by 25 cc of distilled water. This process is repeated five more times. The
final concentration of the solution is

c
c(1/2)5
c(1/2)6
c(1/2)7

Discuss Question

Answer: Option C. -> c(1/2)6

-NA-

Question 7. A yarn of 24 mm length has a varying cross-section. The values of the cross-sectional area of yarn
(mm2), measured at equal intervals of 4 mm from one end are 0.09, 0.12, 0.14, 0.15, 0.16, 0.13, 0.11 The volume of yarn (mm3) estimated by using Simpson's 1/3 rule of numerical integration is

2.40
2.80
3.20
3.36

Discuss Question

Answer: Option C. -> 3.20

-NA-

Question 8. Assume that the rate of evaporation of moisture from a wet fabric during drying process is
proportional to the amount of moisture present in the fabric. If 50 % of the moisture is evaporated
in the first 5 minutes then the time (min) taken to evaporate 90 % of the moisture is approximately

Discuss Question

Answer: Option B. -> 17

-NA-

Question 9. The number of neps in a carded web follows Poisson distribution with a mean of 100 per m2. The
probability that there is no nep in an area of 645 cm2 is

e-6.45
e6.45
e-645
e645

Discuss Question

Answer: Option A. -> e-6.45

-NA-

Question 10. Match the property from Group I with the characterization technique from Group II.Group I Group IIP Spherulite size 1 Optical microscopyQ Degradation temperature 2 X-ray diffractionR Crystalline orientation 3 Differential scanning calorimetryS Melting temperature 4 Thermogravimetric analysis