1. Modulus of rupture is calculated using the formula:
a) f=PL/bd2
b) f=PL3/3EI
c) f=I/6bd2
d) f=Pb/Ld2
Explanation: The modulus of rupture is found out dividing maximum moment M/section factor Z. M is given by PL/6 and Z=1/6bd2.
2. A slump of 50-100mm can be used for:
a) Mass concreting
b) Strip footing
c) Trench fill
d) Beams
Explanation: Slump of higher value gives greater workability, but yields less strength. A slump of 25-75mm can be used for mass concreting and strip footing. A slump of 100-150cm is used for trench fill.
3. How many hoppers are there in compaction factor test?
a) 1
b) 4
c) 2
d) 3
Explanation: There are 2 hoppers and 1 cylinder in the apparatus. Concrete is poured in hopper A (first one). The hinged bottom is opened, concrete falls to 2nd hopper B. Again, hinged bottom is opened, concrete is allowed to fall into cylinder C.
4. If cylinder specimen is used to test compressive strength, equivalent cubes strength can be found using:.
a) 3/4th strength of cylinder
b) 5/4th strength of cylinder
c) 5/6th strength of cylinder
d) 1/4th strength of cylinder
Explanation: This formula is recommended by IS codes. IS 516 gives the details.
5. A casement window hung horizontally is called:
a) Hopper
b) Awning
c) Pivot
d) Transom
Explanation: Awning window is hinged on the top and it swings outwards. These are partially useful for ventilation.
6. Light, a term used in windows, is:
a) Area between outer parts of a window
b) Glazed part of the window
c) Area between inner parts of a window
d) Opening of the window allowing light
Explanation: Light or Lite is a term used to refer to the area between outer parts of the window. It is usually filled with a glass pane.
7. If a door swings towards the person opening it, it is called::
a) Left handed
b) Reverse
c) Normal
d) Right handed
Explanation: Left handed door indicates the hinge is on the left side and right handed has hinge on the right side. If a door opens away from the person, it is a normal door.
8. Which of the below material of window has life span of 50 years?
a) PVC
b) Steel
c) UPVC
d) Aluminium
Explanation: UPVC has very good thermal resistance and durability. The maintenance required is very low. It has an average cost and can thus stay for 50 years.
9. _________ door swings both ways.:
a) Mead
b) Dutch
c) Garden
d) French
Explanation: A Dutch door consists of 2 halves (top & bottom) which function individually. A French door has moulded panel at bottom of door. A garden door has only one door openable and is much secure.
10. A bay window is a multi-panel window, which:
a) Is provided at corners
b) Runs parallel to the wall
c) Embeds inside wall
d) Projects outside wall
Explanation: Bay window has at least 3 panels set at different angles. This feature creates a protrusion from the wall line.