An ISMB 500 is used as a propped cantilever beam of span 15 m. assuming fy = 250 MPa, calculate plastic moment capacity of the beam. For ISMB 500, Ixx = 4.522 × 108 mm4; Iyy = 13.69 × 106 mm4. Assume section to be plastic.
Question 3
In a built up beam gross area of compression flange is 300 cm2 and net area of tension flange is 250 cm2. If calculated bending compressive stress is 150 MPa, then bending tensile stress is:
Question 4
Which of the following is NOT correctly matched?
Question 5
Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I
P. Portland pozzolana cement
Q. Burnt clay bricks
R. Brick work construction
S. Preparation and use of masonry mortars
List-II
1. IS : 2212
2. IS : 1077
3. IS : 2250
4. IS : 1489
Codes:
Question 6
Consider the following statements regarding Cyclopean concrete
1) Size of aggregate is more the 150 mm
2) Size of aggregate is less than 150 mm
3) High slump
4) High temperature rise due to heat of hydration
Which of the above statement are correct
Question 7
Direction: In the following question consists of two statements Assertion(A) and Reason(R). You have to read the statements carefully and select the answers to these questions using the options below.
Assertion (A): strain is a fundamental behaviour of the material, while the stress is a derived concept. Reason(R): strain does not have a unit while stress has a unit.
Question 8
Which of the following explosive contains 21% nitro benzol and 79% potassium chlorate?
Question 9
A project network diagram is shown in the figure below
Normal time and crash time for each activity are given below
The minimum time required for the completion of the project is:
Question 10
The initial cost of a obstruction equipment is Rs. 20,00,000 having a useful life of 10 years. The estimated salvage value of the equipment at the end of useful life is Rs. 2,00,000. The book value (in Rs.) of the equipment at the end of 2nd year using double decline method is:
