10.

11.

32.

13.

14.

15.

16.

17.

What is head room?
‏نی‎ Room for storage
(B) Stair case room
(0). 11070೧11
0) Vertical distance between tread and ceiling

Which test is not related to workability of concrete?

(ಗಿ) Consistency test (18) Compaction factor test
(0 Slump test (D) Vee-bee consistometer test

Which is the type of reaction develops in setting and hardening of cement?
(ക Oxydation ര Hydration
(ட) Calcination 1 (D) Reduction

Who established a relationship between water-cement ratio and strength of conerete?
(४) Cassagrade (೫) Atterberg
(0) Dutt Abrahms (D) Karl Terzaghi

‘Workability is mainly related to :
(A) Cement content (B) Aggregate ratio
(©) Super plasticizers (D) Water content

As per Indian Standards the recommended value of initial setting time of OPC is :
(5) Not less than 30 minutes (ए) More than 6 hrs
)0 Not more than 30 minutes (D) Less than 30 minutes

Reason for soaking bricks in water before testing for compressive strength :
(ക 17५ fill the air voids (ए) To reduce dust
(ட To distribute load uniformly (D) To get the minimum strength

7 days, 14 days, 21 days and 28 days results are considered for concrete compressive
strength. What is the importance of 7 days interval between the tests in codes?

(४) To get gradual strength increment (ए) To compare result with codal values
(C) To perform test on working days (D) Repetition of existing standards

What is the density of cement in bulk form?
(ക) 2400 kg/m® (B) 1440 kg/m?
(€) 2500 kg/m?® (D) 1700 kg/m3

87/2014 4 A