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:
2. 8N
3. 16N
4. 12N
5. 4N

Ans 2

1. In how many ways can 21 English and 19 Hindi books be place in a row so that on two Hindi books are together?
2. 1540
3. 1450
4. 1504
5. 1405

Ans 1

1. If the sum of the roots of the equation ax 2 +box +c = o is equal to the sum love the reciprocal of their squares, then bc 2 , ca2, ac2 will be in:
2. AP
3. GP
4. HP
5. None of these

Ans 1

1. The point’s z1, z2, =z2, z3, z4 in the complex plane are the vertices of a parallelogram taken in order if:
2. Z1,+ z4=z2+z3
3. Z1,+ z4=z2+z4
4. Z1,+ z2=z3+z4
5. none of these

Ans 2

1. 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:
2. 0.5
3. 0.44
4. 0.6
5. None of these

Ans 2

The value of b and c tor which the identity

F(x+1)-f(x) =8x+3is satisfied, where f(x) =bx 2 +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

1. Which of the following five an explosive RDX, on nitration
2. Toluenes
3. Benzene
4. Guanidine
5. Urotropine

Ans 4

1. Peptisation denotes:
2. Digestion of food
3. Hydrolysis of protein
4. Breaking and dispersion into colloidal state
5. Precipitation of solid from colloidal state

Ans 3

1. Buna –n is a polymer of:
2. Butadiene and isoprene
3. Butadiene and acrylonitrile
4. Isoprene and ethylene demine
5. Isoprene and butyl demine

Ans 2

1. Which of the following is an ingrain dye?
2. Congo-red
3. Aniline black
4. Alizarin
5. Indigo

Ans 2

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