Maharashtra State board of Technical Education-Applied Science

Name of the Institute:
Course: Civil Engineering Group
Course Code: CE/CS/CR/CV
Semester : Second
Subject : Applied Science Subject Code : 9007
Duration : 2 Hour Marks : 40
Note: Marks obtained out of 40 should be converted to out of 20 Marks.

Instructions: - 1) All questions are Compulsory.
2) Draw diagrams wherever necessary

Section – I

Q-1 Attempt any four (8 marks)
1) State equations of motion modify these equations for body falling freely.
2) A meter scale is falling down without slipping from vertical position with 2rad/s.
Calculate acceleration with which it falls.
3) State Newton’s third law of motion. What do you think about cancellation of
action & reaction?
4) Define a) work b) impulse.
5) Each man pulls load at an angle 300 with horizontal with 2kn. Find work done in
15m displacement.
6) A railway moving with speed 72 km/hr stops after 2 minutes. Calculate
retardation.
9007

Q-2 Attempt any three. (12 marks)
1) A block of mass 20kg is pulled on a floor by horizontal rope through distance of
20m. If coefficient of friction between block & floor is 0.2, find work done.
2) Equation of SHM is y= 0.3 sin 2? ( t + ? /
Calculate 1) acceleration at distance 1meter, 2) phase of particle after 1second.
3) A body accelerating uniformly at 5red/s2 is found to be rotating at 90red/s at the
end of 12/sec. Determine initial velocity & angle turned during this internal.
4) A railway travels between stations 60km apart in 40 minutes. The train
accelerates uniformly & uniforms retardation. Find the maximum speed attained
during the journey. Plot VT diagram.

Section - II

Q. 1. Attempt any TWO of the following. 04 marks
a. Define hardness and name its type.
b. Name different types of impurities in water.
c. Give the function of gypsum in cement.

Q. 2. Attempt any TWO of the following. 08 marks
a. Explain the causes of scale & sludge formation in boiler.
b. Explain zeolite process for removal of total hardness of water.
c. Define PH. Write down the PH value of extremely acidic & basic solution.
Calculation PH of 2.5 ´ 10– 3 molar NaOH assuming complete ionization.

Q. 3. Attempt any TWO of the following. 08 marks
a. What are the chemical constituents of cement ?
b. Explain the process of setting and hardening of cement.
c. What is lime ? How it is prepared ? Write the uses of lime account.