Are you guys looking for Civil Engineering MCQ Questions with Answers PDF Free Download as per Civil Engineering new exam pattern? You came to the right page. This may assist you to understand and check your knowledge about the Subjects. Students also can take a free test of the Multiple Choice Questions of Civil Engineering. Each question has four options followed by the right answer. These Civil Engineering MCQ Questions are selected supported by the newest exam pattern.
Q1. The polluted water is one which
(A) Contains pathogenic bacteria
(B) Consists of undesirable substances rendering it unfit for drinking and domestic use
(C) Is safe and suitable for drinking and domestic use
(D) Is contaminated
Answer:(B) Consists of undesirable substances rendering it unfit for drinking and domestic use
Q2. If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to
(A) Total alkalinity
(B) Total hardness
(C) Total hardness total alkalinity
(D) Non carbonate hardness
Answer: (A) Total alkalinity
Q3. The settling velocity of a particle in a sedimentation tank depends on
(A) Depth of tank
(B) Surface area of tank
(C) Both depth and surface area of tank
(D) None of the above
Answer: (B) Surface area of tank
Q4. Orthotolidine test is used for determination of
(A) Dissolved oxygen
(B) Residual chlorine
(C) Biochemical oxygen demand
(D) Dose of coagulant
Answer: (B) Residual chlorine
Q5. For a given discharge, the efficiency of sedimentation tank can be increased by
(A) Increasing the depth of tank
(B) Decreasing the depth of tank
(C) Increasing the surface area of tank
(D) Decreasing the surface area of tank
Answer: (C) Increasing the surface area of tank
Q6. The detention period in coagulation tanks is usually kept as
(A) 1 to 2 minutes
(B) 30 to 45 minutes
(C) 2 to 6 hours
(D) 2 to 6 days
Answer: (C) 2 to 6 hours
Q7. The chemical most commonly used to increase speed of sedimentation of sewage is
(A) Sulphuric acid
(B) Copper sulphate
(C) Lime
(D) Sodium permanganate
Answer: (C) Lime
Q8. Air binding phenomena in rapid sand filters occur due to
(A) Excessive negative head
(B) Mud ball formation
(C) Higher turbidity in the effluent
(D) Low temperature
Answer: (A) Excessive negative head
Q9. Period of cleaning of slow sand filters is about
(A) 24 – 48 hours
(B) 10 – 12 days
(C) 2 – 3 months
(D) 1 – 2 year
Answer: (C) 2 – 3 months
Q10. The disinfection efficiency of chlorine increases by
(i) Decreasing the time of contact
(ii) Decreasing the temperature of water
(iii) Increasing the temperature of water
The correct answer is
(A) Only (i)
(B) Both (i) and (ii)
(C) Both (i) and (iii)
(D) Only (iii)
Answer: (D) Only (iii)
Q11. The suitable method for disinfection of swimming pool water is
(A) Ultra violet rays treatment
(B) Lime treatment
(C) By using potassium permanganate
(D) Chlorination
Answer: (A) Ultra violet rays treatment
Q12. The process in which the chlorination is done beyond the break point is known as
(A) Pre-chlorination
(B) Post chlorination
(C) Super chlorination
(D) Break point chlorination
Answer: (C) Super chlorination
Q13. The layout of distribution system in which water flows towards the outer periphery is
(A) Ring system
(B) Dead end system
(C) Radial system
(D) Grid iron system
Answer: (C) Radial system
Q14. The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is
(A) Steel
(B) Cast iron
(C) Copper
(D) Reinforced cement concrete
Answer: (B) Cast iron
Q15. Disinfection efficiency is
(A) Reduced at higher pH value of water
(B) Unaffected by pH value of water
(C) Increased at higher pH value of water
(D) Highest at pH value equal to 7
Answer: (A) Reduced at higher pH value of water
Environmental Engineering MCQs all set-
- Environmental Engineering MCQ Practice Test – Set 01
- Environmental Engineering Important Questions – Set 02
- Environmental Engineering Interview Questions Answers – Set 03
- Environmental Engineering Quiz Questions and Answers – Set 04
- Environmental Engineering Multiple Choice Questions and Answers – Set 05
- Civil engineering Environmental Questions – Set 06
- Environmental Engineering Exam Questions – Set 07
- Environmental Engineering Objective Questions with Answers – Set 08
- Environmental Engineering Objective Questions – Set 09
- Environmental Engineering MCQ Questions Set – 10
We hope the given Environmental Engineering Civil Engineering MCQ Questions with Answers will definitely yield fruitful results. Hope you got enough ideas on the MCQs on Civil Engineering. If you have any queries related to Civil Engineering MCQs Multiple Choice Questions with Answers, drop your questions below and will get back to you in no time.