Description : Thermocol (expanded polystyrene) is not used for (A) Low temperature thermal insulation as in refrigerator and air conditioners (B) Acoustic control and ceiling for building (C) High temperature thermal insulation in furnaces (D) Packing of delicate electronic gadgets
Last Answer : (C) High temperature thermal insulation in furnaces
Description : The breadth of a ribbed slab containing two bars must be between (A) 6 cm to 7.5 cm (B) 8 cm to 10 cm (C) 10 cm to 12 cm (D) 12 cm to 15 cm
Last Answer : Answer: Option B
Description : The maximum diameter of a bar used in a ribbed slab, is (A) 12 mm (B) 6 mm (C) 20 mm (D) 22 mm
Last Answer : Answer: Option D
Description : The thickness of the topping of a ribbed slab, varies between (A) 3 cm to 5 cm (B) 5 cm to 8 cm (C) 8 cm to 10 cm (D) 12 cm to 15 cm
Description : For a ribbed slab (A) Clear spacing between ribs shall not be greater than 4.5 cm (B) Width of the rib shall not be less than 7.5 cm (C) Overall depth of the slab shall not exceed four times the breadth of the rib (D) All the above
Description : Pick up correct statement from the following: (A) Fibre boards are used for thermal and acoustic control (B) Fibre boards are used for light weight standing members (C) Fibre boards are obtained by impregnating a resin product on fibres (D) All the above
Description : If P kg/m2 is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by (A) D = 0.00775 aP (B) D = 0.0775 aP (C) D = 0.07775 aP (D) D = 0.775 Pa
Last Answer : Answer: Option A
Description : Pick up the true statement from the following: (A) Plain ceiling provides the best property diffusing light (B) In the absence of beams, it is easier to install piping (C) In the absence of beams, it is easier to paint (D) All the above
Description : Distribution reinforcement in a simply supported slab, is provided to distribute (A) Load (B) Temperature stress (C) Shrinkage stress (D) All the above
Description : The thickness of base slab of a retaining wall generally provided, is (A) One half of the width of the stem at the bottom (B) One-third of the width of the stem at the bottom (C) One fourth of the width of the steam at the bottom (D) Width of the stem at the bottom
Description : If is the overall height of a retaining wall retaining a surcharge, the width of the base slab usually provided, is (A) 0.3 H (B) 0.4 H (C) 0.5 H (D) 0.7 H
Description : Pick up the incorrect statement from the following: (A) In the stem of a retaining wall, reinforcement is provided near the earth side (B) In the toe slab of a retaining wall, reinforcement is ... slab of a retaining wall, reinforcement is provided at the top of the slab (D) None of these
Description : Joints in concrete structures, are provided (A) To reduce the tensile stresses likely to be developed due to evaporation of water (B) To minimise the change in the dimensions of the slab (C) To minimise the necessary cracking (D) All the above
Last Answer : (D) All the above
Description : The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is (A) Not needed (B) Provided equally on inner and front faces (C) Provided more on inner face than on front face (D) Provided more on front face than on inner face
Description : Pick up the correct statement from the following: (A) The roof slabs of multi-storeyed buildings are constructed monolithically to carry the various floor loads (B) The beams of multi-storeyed ... slab is spanned across the secondary beams provided between the main beams (D) All of these
Description : The reinforcement in a continuous slab is provided (a) At the top of the slab portion over the intermediate supports. (b) At the bottom of the slab portion over the intermediate supports. (c) All the middle of the slab portion over the intermediate supports (d) All the above
Last Answer : (a) At the top of the slab portion over the intermediate supports.
Description : In a limit state method of design, when shear reinforcement is not provided, the calculated shear stress at the critical section of a slab shall not exceed; [ A ] Ks 0.25 v fck [ B ] ks 0.20 v fck [ C ] ks 0.16 v fck [ D ] ks 0.10 v fck
Last Answer : [ A ] Ks 0.25 v fck
Description : Noise from random acoustic or electric noise that has equal energy per cycle over a specified total frequency band. A. Gaussian noise B. Whiter noise C. Thermal noise D. All of the above
Last Answer : D. All of the above
Description : Noise from random acoustic or electric noise that has equal per cycle over a specified total frequency band. A. Thermal noise B. White noise C. Gaussian noise D. All of these
Last Answer : D. All of these
Description : Need a lot of home repairs roof Leaking, floor tile bathroom coming off of floor, toilet leaks not able to use bedroom no insulation on home addition. plaster falling from ceiling ,retired on fixed income?
Last Answer : Where can I get grants that don,t need to pay bacK?
Description : Cavity wall is generally provided for (A) Heat insulation (B) Sound insulation (C) Prevention of dampness (D) All the above
Description : Is ribbed mussel a hervibore?
Last Answer : Feel Free to Answer
Description : Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface. (A) Plane (B) Curved (C) Ribbed (D) Either (A) or (B)
Last Answer : (C) Ribbed
Description : This type seed metering mechanism consist of wheel with fine and coarse ribbed flanges. b. fluted feed c. Cup feed d. None of the above
Last Answer : Ans - a. Internal double run
Description : The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the ... temperature of the right face in °C is (A) 77.2 (B) 71.2 (C) 63.8 (D) 48.7
Last Answer : (D) 48.7
Description : The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent. (A) 15 (B) 40 (C) 70 (D) 85
Last Answer : (B) 40
Description : In septic tanks, A. Free board of 0.3 m may be provided B. The baffles or tees are extended up to top level of scum C. The clear space between the baffle top and covering slab is about 7.5 cm D. All the above
Last Answer : ANS: D
Description : Which one of the following statements regarding septic tanks is wrong? A. A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided B. The outlet invert level is kept ... . The minimum width of septic level is 90 cm D. The depth of tank is kept equal to its width
Description : Steel channel sleepers are provided in bridges with superstructure of a) PSC slab b) PSC girder c) Steel girder* d) RCC Box
Last Answer : c) Steel girder*
Description : Pick up the correct statement from the following: (A) Construction joints are necessarily planned for their locations (B) Expansion joints are provided to accommodate thermal expansion (C) Construction joints are provided to control shrinkage cracks (D) All the above
Description : Ventilators are provided near the ceiling of the room because – (1) the exhaled warmer air rises up and goes out (2) these provide cross ventilation in the room (3) these provide some sunlight in the room (4) these do not look nice in the lower part
Last Answer : (1) the exhaled warmer air rises up and goes out Explanation: Ventilation is a room air distribution strategy where conditioned outdoor air is supplied at floor level and extracted above the occupied zone, ... to heat exchange with heat sources in the space (e.g., occupants, computers, lights).
Description : What is the amount of sound reduction provided by a barrier – wall, floor, or ceiling called? A. Sound Attenuation B. Transmission loss C. Sound absorption D. Barrier loss
Last Answer : B. Transmission loss
Description : Ventilators are provided near the ceiling of the room because (1) the exhaled warmer air rises up and goes out (2) these provide cross ventilation in the room (3) these provide some sunlight in the room (4) these do not look nice in the lower part
Last Answer : the exhaled warmer air rises up and goes out
Description : How insulation between the outer and inner walls of a home hleps to reduce thermal energy transfer?
Last Answer : Need answer
Description : Line losses in a distribution circuit are kept to a minimum by __________. A. adding rubber insulation conductors to the circuit B. using higher current and lower voltage C. increasing the number of thermal relays in the circuit D. using higher voltage and lower current
Last Answer : Answer: D
Description : Polyurethane cannot be used to make (A) Automobile cushion (B) Thermal insulation in refrigerator (C) Coating and adhesive (D) Fibre reinforced plastic (FRP)
Last Answer : (D) Fibre reinforced plastic (FRP)
Description : The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface) (A) K/h0 (B) 2K/h0 (C) h0 /K (D) h0 /2K
Last Answer : (B) 2K/h0
Description : Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have (A) High electrical insulation properties (B) Sharp melting points (C) Low co-efficient of thermal expansion (D) Compressive strength much greater than their tensile strengths
Last Answer : (B) Sharp melting points
Description : A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place (A) The better insulation material should be put just ... to which insulating material is to be put inside (i.e., just next to the pipe)
Last Answer : (A) The better insulation material should be put just next to pipe (i.e., inside)
Description : What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2. °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively. (A) 2 (B) 8 (C) 10 (D) 40
Last Answer : (A) 2
Description : Due to which of the following reasons the cables should not be operated too hot ? (a) The oil may loose its viscosity and it may start drawing off from higher levels (b) Expansion of the ... instability may rise due to the rapid increase of dielectric losses with temperature (e) All of the above
Last Answer : (e) All of the above
Description : Which of the following is the basic consideration in the design of insulation ? (a) Electrical considerations (b) Mechanical considerations (c) Thermal considerations (d) All of the above
Last Answer : (d) All of the above
Description : Explain requirement of thermal insulation to chemical process equipment with example.
Last Answer : Requirement of Thermal insulation: 1. Thermal insulation is the reduction of heat transfer. 2. Thermal insulation is used to prevent excessive heat loss. 3. It is used to minimize the ... . 4. In refrigeration, refrigerator consists of a heat pump and a thermally insulated compartment.
Description : Give the types of thermal insulation With one example each.
Last Answer : Types of thermal insulation: Thermal insulations are classified as - 1) Organic insulations - e.g. wool (sheep) , cork , cellulose , wood fiber , flax , cotton , hemp , phenolic foam ... foamed glass , expanded perlite , refractory bricks , ceramic wool (fiber) ,calcium silicate , vermiculat etc
Description : How is thermal insulation carried out in modern construction?
Last Answer : The rise in the cost of utilities and heat energy makes today more and more often think about ways to protect buildings from heat loss. And this is no coincidence, because in this way you can ... , glue insulation, reinforce the surface. But the final finishing should still be done in warm weather.
Description : Thermal insulation is used to: w) stop the flow of heat. x) reduce the flow of heat. y) absorb heat. z) reverse the heat flow direction.
Last Answer : ANSWER: X -- REDUCE THE FLOW OF HEAT.
Description : Stones are provided in the substation to: a) To avoid fire accident by draining oil from transformer if leaks b) To avoid growing of weeds and plants c) To provide insulation d) All the above
Last Answer : Ans: D
Description : Which type of protection is provided on a generator to protect against stator insulation failure? A) Differential protection B) Overcurrent relay C) Thermocouple actuated alarm D) Reverse power relay
Last Answer : Which type of protection is provided on a generator to protect against stator insulation failure? A) Differential protection B) Overcurrent relay C) Thermocouple actuated alarm D) Reverse power relay
Description : The thickness of insulation provided on the conductor depends on?
Last Answer : The thickness of insulation provided on the conductor depends on the magnitude of voltage on the conductor.
Description : The insulation on a current carrying conductor is provided?
Last Answer : The insulation on a current carrying conductor is provided to prevent leakage of current, to prevent shock.