Civil Engineering MCQs

Page No. 263

Air entrainment in the concrete increases________________?


aworkability


b strength


cthe effects of temperature variations


d the unit weight


View Answer workability

The relation between modulus of rupture fcr, splitting strength fcs and direct tensile strength fcl is given by_______________?


atcr – rcs = tct


bfcr>fcs>fc


cfcr


d fc5>fcr>fC


View Answer fcr>fcs>fc

The approximate value of the ratio between direct tensile strength and flexural strength is_____________?


a0.33


b0.5


c0.75


d1.0


View Answer 0.5

The relation between modulus of rupturefcr and characteristic strength of concrete fck is given by_______________?


afcr=0.35Vf7


bfcr=0.57f7


cfcr=0.7Vf7


dfcr=1.2Vf7


View Answer fcr=0.7Vf7

Increase in the moisture content in concrete_________________?


areduces the strength


bincreases the strength


cdoes not change the strength


dall of the above


View Answer reduces the strength

Admixtures which cause early setting, and hardening of concrete are called_______________?


aworkability admixtures


baccelerators


cretarders


dair entraining agents


View Answer accelerators

The strength of concrete after one year as compared to 28 days strength is about_______________?


a10 to 15% more


b15 to 20% more


c20 to 25% more


d25 to 50% more


View Answer 20 to 25% more

The most commonly used admixture which prolongs the setting and hardening time is_______________?


agypsum


bcalcium chloride


csodium silicate


d all of the above


View Answer gypsum

According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as______________?


aEc = = 5700


b Ec = = 570


cEc = = 5700fck


d Ec = where fck N/mm2 = 700 is the characteristic strength in


View Answer Ec = = 5700

As compared to ordinary portland cement, use of pozzuolanic cement_______________?


areduces workability


b increases bleeding


cincreases shrinkage


dincreases strength


View Answer increases shrinkage

Goto Page No.

Page 263 of 302

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan