Paper BCECE-Engineering
1. forces forming a couple are of magnitude 12Ndach and the arm of the couple is 8m. The force of an equivalent couple whose arm is 6m is of magnitude:
1. 8N
2. 16N
3. 12N
4. 4N
Ans 2
2. In how many ways can 21 English and 19 Hindi books be place in a row so that on two Hindi books are together?
1. 1540
2. 1450
3. 1504
4. 1405
Ans 1
3. If the sum of the roots of the equation ax2 +box +c = o is equal to the sum love the reciprocal of their squares, then bc2, ca2, ac2 will be in:
1. AP
2. GP
3. HP
4. None of these
Ans 1
4. The point’s z1, z2, =z2, z3, z4 in the complex plane are the vertices of a parallelogram taken in order if:
1. Z1,+ z4=z2+z3
2. Z1,+ z4=z2+z4
3. Z1,+ z2=z3+z4
4. none of these
Ans 2
5. If the probability of x to fall in the examination is 0.3and that for y is 0.2, then the probability that either x or y fail in examination is:
1. 0.5
2. 0.44
3. 0.6
4. None of these
Ans 2
6. The value of b and c tor which the identity
F(x+1)-f(x) =8x+3is satisfied, where f(x) =bx2+cx+d, are:
1. B=2,c=1
2. B=4,c=-1
3. B=-1,c=4
4. B=-1,c=1
Ans 2
7. Which of the following five an explosive RDX, on nitration
1. Toluenes
2. Benzene
3. Guanidine
4. Urotropine
Ans 4
8. Peptisation denotes:
1. Digestion of food
2. Hydrolysis of protein
3. Breaking and dispersion into colloidal state
4. Precipitation of solid from colloidal state
Ans 3
9. Buna –n is a polymer of:
1. Butadiene and isoprene
2. Butadiene and acrylonitrile
3. Isoprene and ethylene demine
4. Isoprene and butyl demine
Ans 2
10. Which of the following is an ingrain dye?
1. Congo-red
2. Aniline black
3. Alizarin
4. Indigo
Ans 2
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