Engineering Questions with Answers - Multiple Choice Questions

Strength of Materials MCQs – Power of Shaft

1 - Question

Calculate the power transmitted in the shaft at 150 rpm. Take torque as 9000Nm. a) 140 kW b) 150 kW c) 160 kW d) 175 kW
View Answer Answer: a Explanation: To find power transmitted (P) is P = 2 π N T / 60 watts. P = 2 π × 150 × 9000 / 60 P = 140 kW.


2 - Question

Which of the following is not a cross drainage work? a) Aqueduct b) Head regulator c) Super passage d) Level crossing
View Answer Answer: b Explanation: The head regulator is hydraulic structure constructed at the head of a canal system where it takes off from a reservoir behind a weir or a dam. It is used as a measuring device.


3 - Question

Stucco is a type of _________ a) Varnishing b) Distempering c) Plastering d) Whitewashing
View Answer Answer: c Explanation: Stucco is the name given to a decorative type of plaster, which provides an excellent finish like that with marble’s lining.


4 - Question

The thickness of cement plaster should not be more than _______ a) 15 mm b) 12 mm c) 16 mm d) 20 mm
View Answer Answer: b Explanation: The cement plaster is applied in one or two coats. The surface is polished with the trowel or iron float. The thickness of the coat should not be more than 12 mm.


5 - Question

__________ mm thick plastering is done for stone masonry. a) 10 mm b) 15 mm c) 18 mm d) 20 mm
View Answer Answer: d Explanation: Normally 12 mm thick plastering is done for brick masonry and 20 mm thick plastering is done for the stone masonry. The plastered surface is then cured by sprinkling water over the surface for one or two weeks.


6 - Question

The thickness of lime plaster varies from _______ to ________ mm. a) 15 – 20 mm b) 12 – 15 mm c) 18 – 25 mm d) 20 – 25 mm
View Answer Answer: d Explanation: The proportioning of the ingredients of lime plaster is adapted according to a number of coats to be applied. The thickness of lime plaster varies from 20 to 25 mm.


7 - Question

Which of the following plastering is widely adopted in rural areas? a) Stucco Plastering b) Mud plastering c) Lime plastering d) Asphalt plastering
View Answer Answer: b Explanation: Mud plastering is done on the walls of temporary Sheds and widely adopted in rural areas. The Plaster is evenly dashed against the wall with a wooden float. After 24 hours the surface is tapped.


8 - Question

Which of the following blasters contains pulverized alum? a) Water proof plaster b) Plaster on lathe c) C plaster d) Marble plaster
View Answer Answer: a Explanation: Waterproof plaster is made by mixing 1 part of cement, 2 parts of sand and pulverized alum at the rate of 120 Newton per metre and in the water to be used.


9 - Question

Which of the following is known as” laying trowel”? a) Float b) Gauge trowel c) Floating Rule d) Skimming float
View Answer Answer: a Explanation: The tool which is used to spread the mortar on the surface is known as float. It is also known as laying trowel. It is made of thin tempered Steel.


10 - Question

_________ is used to check the level of plastered surface. a) Gauging trowel b) Plumb bob c) Floating Rule d) Float
View Answer Answer: c Explanation: Floating rule is the tool which is used to check the level of plastered surface between the successive screeds.


11 - Question

Skimming float is ____________ a) Wooden float b) Metalled float c) Tempered steel float d) Asbestos cement sheet
View Answer Answer: a Explanation: The wooden floor is known as the skimming float and it is used for final and finishing coat of plaster. The Plaster is evenly spread against the wall surface with a wooden float.


12 - Question

Which of the following is a defect in plastering? a) Flaking b) Scrap c) Rust d) Staining
View Answer Answer: a Explanation: Flaking is a defect in plastering. It is a formation of a very loose mass of plastered surface due to poor bond between successive coats. This is obtained due to poor workmanship.


13 - Question

________ is a process of mixing various constituents of plaster. a) Grazing b) Blistering c) Gauging d) Hacking
View Answer Answer: c Explanation: Gauging is defined as a process of mixing various constituents of plaster. It is to be done after the brick work had carried out to the best workmanship. Efflorescence can be removed to some extent of dry brushing.


14 - Question

The small projections of plaster are known as ________ a) Back b) Dado c) Dot d) Hack
View Answer Answer: c Explanation: The small projections of plaster laid on the background are known as dots. These are laid for fixing of screeds. The size of the dots may be 15×15 cm.


15 - Question

______ openings or indentations of corrugations in plaster. a) Helms b) Grains c) Keys d) Flake
View Answer Answer: c Explanation: Keys are the openings or indentations of corrugations on the background or surface of undercoat, to which plaster will form mechanical bond.

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