MCQOPTIONS
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MCQOPTIONS
This section includes 2167 Mcqs, each offering curated multiple-choice questions to sharpen your Php knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
The _________ of lead, Copper and Aluminium can be used as the membrane of damp proofing. |
| A. | Metal sheets |
| B. | Bituminous felts |
| C. | Mastic asphalt |
| D. | Hot bitumen |
| Answer» B. Bituminous felts | |
| 302. |
In order to prevent the entry of damp into a building, the course are provided are known as the ________ course. |
| A. | Termites proofing |
| B. | Water proofing |
| C. | Corrosion proofing |
| D. | Damp proofing |
| Answer» E. | |
| 303. |
A non-conducting liquid is passed inside a metal tube carrying electricity (Voltage=220V, current=0.5A), what is the final temperature of the bulk of liquid if it enters at 10℃. (h =100 W/m2K, Area =0.2m2) |
| A. | 25.5℃ |
| B. | 15.0℃ |
| C. | 15.5℃ |
| D. | 14.5℃ |
| Answer» D. 14.5℃ | |
| 304. |
Given the convective heat transfer Coefficient of the inner surface to be 15W/m2K, OD = 30mm and ID = 25mm. Find the outer surface heat transfer coefficient. |
| A. | 15 W/m2K |
| B. | 12 W/m2K |
| C. | 12.5 W/m2K |
| D. | 13.5 W/m2K |
| Answer» D. 13.5 W/m2K | |
| 305. |
The temperature profile of a fully developed Thermal flow in a pipe of length L can be defined by the formula. Tbulk – Twall = (Tinlet – Twall)eλL |
| A. | True |
| B. | False |
| Answer» B. False | |
| 306. |
Given a fluid enters at a temperature of 22℃into a pipe of length 1m. On fully developed thermal flow, the wall temperature is 92℃, determine the temperature of the bulk of the liquid at exit. (Given λ = 0.5) |
| A. | 50℃ |
| B. | 100℃ |
| C. | 104℃ |
| D. | 150℃ |
| Answer» B. 100℃ | |
| 307. |
A liquid is heated by passing it through a circular pipe (kpipe = 15W/mK, viscosity = 2.5×10-5 Pa-s, Cp = 1000 J/Kg-K, kliquid = 0.035 W/mK) of ID = 25mm and OD = 30mm with length L = 15 m. If the Reynolds No. is 79000. What is the outer surface average heat transfer coefficient? |
| A. | 773KW/m2K |
| B. | 83KW/m2K |
| C. | 104KW/m2K |
| D. | 43KW/m2K |
| Answer» C. 104KW/m2K | |
| 308. |
Velocity profile in a pipe is independent of axial position whereas Temperature Profile is not. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 309. |
The tappet is subjected to which force? |
| A. | Both compressive and tensile |
| B. | Neutral force |
| C. | Tensile |
| D. | Compressive |
| Answer» E. | |
| 310. |
Calculate the base circle diameter of cam, when bore diameter is 150mm? |
| A. | 27.9mm |
| B. | 28mm |
| C. | 36.5mm |
| D. | 38.9mm |
| Answer» D. 38.9mm | |
| 311. |
Pushrods are in direct contact with valves? |
| A. | True |
| B. | False |
| Answer» C. | |
| 312. |
Pushrods are solid rod. |
| A. | True |
| B. | False |
| Answer» C. | |
| 313. |
What is the cross-section of the pushrod? |
| A. | Cylindrical |
| B. | Circular |
| C. | Square |
| D. | Rectangular |
| Answer» C. Square | |
| 314. |
The pushrod is designed as a column based on what criteria? |
| A. | Tensile |
| B. | Buckling |
| C. | Compressive |
| D. | Both tensile and compressive |
| Answer» C. Compressive | |
| 315. |
Which type of joint is used at the end of pushrod?a) Ball and socketsb) Ball and spigotc) Socket and cotterd) Cotter and key 5.The sockets at the end of the pushrod are connected by which fit? |
| A. | Ball and socketsb) Ball and spigotc) Socket and cotterd) Cotter and key 5.The sockets at the end of the pushrod are connected by which fit?a) Nut and bolt |
| B. | Ball and spigotc) Socket and cotterd) Cotter and key 5.The sockets at the end of the pushrod are connected by which fit?a) Nut and boltb) Welding |
| C. | Socket and cotterd) Cotter and key 5.The sockets at the end of the pushrod are connected by which fit?a) Nut and boltb) Weldingc) Bracing |
| D. | Cotter and key 5.The sockets at the end of the pushrod are connected by which fit?a) Nut and boltb) Weldingc) Bracingd) Force fitView Answer |
| Answer» B. Ball and spigotc) Socket and cotterd) Cotter and key 5.The sockets at the end of the pushrod are connected by which fit?a) Nut and boltb) Welding | |
| 316. |
Which of the mentioned below material is used in pushrod? |
| A. | Mild steel |
| B. | Duralumin tube |
| C. | Steel tube |
| D. | Chromoly |
| Answer» C. Steel tube | |
| 317. |
Pushrods are connected between which two parts of the valve gear mechanism? |
| A. | In the crankshaft |
| B. | In the alternator |
| C. | Cam and rocker |
| D. | In the Fuel pump |
| Answer» D. In the Fuel pump | |
| 318. |
Pushrods are used in which type of valve mechanized engine? |
| A. | Overhead valve |
| B. | Side valve |
| C. | Bottom face valve |
| D. | Under the head valve |
| Answer» B. Side valve | |
| 319. |
How many types of supporting tower for wind mill are generally used? |
| A. | 2 |
| B. | 4 |
| C. | 3 |
| D. | 5 |
| Answer» C. 3 | |
| 320. |
In which part do we find sensors and actuators? |
| A. | Fixed gears |
| B. | Turbines |
| C. | Control systems |
| D. | Blades |
| Answer» D. Blades | |
| 321. |
Which type of generator are made use in wind turbines? |
| A. | Recreational generators |
| B. | Synchronous generator |
| C. | Asynchronous generator |
| D. | Alternator |
| Answer» C. Asynchronous generator | |
| 322. |
Why recommendation of fixed ratio gears done for top mounted equipment? |
| A. | Because they are easy install |
| B. | Requires less space |
| C. | Due to its low cost |
| D. | Because of their high efficiency |
| Answer» E. | |
| 323. |
A rotor installed in a fixed orientation with the swept area perpendicular to the pre dominate wind direction is called ___________ |
| A. | Nacelle |
| B. | Yaw fixed machines |
| C. | Blades |
| D. | Anemometer |
| Answer» C. Blades | |
| 324. |
How much power does the small scale wind machine generate? |
| A. | 18 KW |
| B. | 2 KW |
| C. | 12 KW |
| D. | 30 KW |
| Answer» C. 12 KW | |
| 325. |
The new philosophy of design termed the limit state approach was incorporated in which country code? |
| A. | Europe |
| B. | Russia |
| C. | Canada |
| D. | India |
| Answer» C. Canada | |
| 326. |
The philosophy of limit states is adopted and elaborated by ____________ |
| A. | European concrete committee(CEB) |
| B. | European concrete committee(CEB) |
| C. | European concrete committee(CEB) |
| D. | European concrete committee(CEB) |
| Answer» B. European concrete committee(CEB) | |
| 327. |
The ultimate load design concepts extended to the design of continuous beams and frames is referred to as ____________ |
| A. | Working stress design |
| B. | Permissible stress design |
| C. | Limit state design |
| D. | Collapse state design |
| Answer» D. Collapse state design | |
| 328. |
The structure designed by ultimate load method, although having a desirable margin of safety may not be safe at ____________ |
| A. | Serviceable |
| B. | Durable |
| C. | Ductile |
| D. | Tension |
| Answer» B. Durable | |
| 329. |
The inadequacy of the working load design in predicting ultimate loads of structure was recognized after ____________ |
| A. | Second world war |
| B. | Cold war |
| C. | Red war |
| D. | First world war |
| Answer» E. | |
| 330. |
The permissible or working stress method of design, by Morsh is also referred as ____________ |
| A. | Limit theory |
| B. | State theory |
| C. | Elastic theory |
| D. | Stress theory |
| Answer» D. Stress theory | |
| 331. |
The primary object of structural design is to obtain ____________ |
| A. | Structural plan |
| B. | Structural solution |
| C. | Structural design |
| D. | Structural lane |
| Answer» C. Structural design | |
| 332. |
A successful design should not only satisfy requirements but also ensure ____________ |
| A. | Serviceability |
| B. | Total cost |
| C. | Critical period |
| D. | Planning |
| Answer» B. Total cost | |
| 333. |
The limit state design proposals have been evolved from the provisions of various ____________ |
| A. | Structures |
| B. | Codes |
| C. | Plan |
| D. | Foundations |
| Answer» C. Plan | |
| 334. |
The limit state design philosophy recognizes the need to provide ____________ |
| A. | Safe structures |
| B. | Designed structures |
| C. | Stressed structures |
| D. | Curved structures |
| Answer» B. Designed structures | |
| 335. |
The dimension of the bulb in an under-reamed pile can be checked by __________ |
| A. | Meter scale |
| B. | G.I pipe assembly |
| C. | Auger |
| D. | Under-reamer |
| Answer» C. Auger | |
| 336. |
Pile groups in under-reamed pile foundation can be tested by means of _________ |
| A. | Free standing piles and Pile foundation |
| B. | Cannot be tested |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Cannot be tested | |
| 337. |
Enlarging the stem of bore hole at the depth is done by using________ |
| A. | Spiral auger |
| B. | Under-reamer |
| C. | Boring guide |
| D. | None of the mentioned |
| Answer» C. Boring guide | |
| 338. |
In the process of pile foundation, boring is done with the help of _________ |
| A. | Boring guide |
| B. | Under-reamer |
| C. | Spiral auger |
| D. | Pile beams |
| Answer» D. Pile beams | |
| 339. |
Routine tests are usually carried out on _________ |
| A. | Test piles |
| B. | Working piles |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» C. None of the mentioned | |
| 340. |
The depth of the bore hole is checked at _________ before insertion of the under-reamer. |
| A. | At the start and At the end |
| B. | Each time |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Each time | |
| 341. |
The use of bore guide in under-reamed pile foundation is essential for __________ |
| A. | To drill the bore hole |
| B. | To provide a support to the pile |
| C. | To keep the bore holes vertical |
| D. | To set the guide assembly in position |
| Answer» D. To set the guide assembly in position | |
| 342. |
The equipment required for construction of a under-reamed pile is________ |
| A. | Auger boring guide |
| B. | Spiral auger |
| C. | Concreting funnel |
| D. | All of the mentioned |
| Answer» E. | |
| 343. |
If the ip =2.62 kW and bp = 2.4 kW than fp = 5.04 kW |
| A. | True |
| B. | False |
| Answer» C. | |
| 344. |
What is brake specific fuel consumption of engine whose fuel consumption if 6 grams per second and power output is 90 kW? |
| A. | 0.24 kg/kWh |
| B. | 0.0667 kg/kWh |
| C. | 0.54 kg/kWh |
| D. | 0.44 kg/kWh |
| Answer» B. 0.0667 kg/kWh | |
| 345. |
The bore and stroke of the single-cylinder four-stroke engine are 90 mm and 120 mm respectively. The torque is 24 Nm. What is the brake mean effective pressure of the engine? |
| A. | 3.9 bar |
| B. | 4.9 bar |
| C. | 5.9 bar |
| D. | 6.9 bar |
| Answer» B. 4.9 bar | |
| 346. |
The indicated power of the single-cylinder engine is 1.9 kW. It develops torque of 10 Nm at 1600 rpm. What is the friction power as the percentage of brake power? |
| A. | 12.43% |
| B. | 13.43% |
| C. | 14.43% |
| D. | 15.43% |
| Answer» C. 14.43% | |
| 347. |
Which of the following relation between indicated mean effective pressure (imep), brake mean effective pressure (bmep) and friction mean effective power (fmep) is correct? |
| A. | imep = fmep + bmep |
| B. | imep = fmep * bmep |
| C. | imep = fmep – bmep |
| D. | imep = fmep / bmep |
| Answer» B. imep = fmep * bmep | |
| 348. |
The Otto engine consumes 9 liters of petrol per hour and develops 30 kW. The specific gravity of petrol is 0.8 and its calorific value is 45000 kJ/kg. What is the indicated thermal efficiency of the engine? |
| A. | 33.33% |
| B. | 25% |
| C. | 30% |
| D. | 32% |
| Answer» E. | |
| 349. |
What does the Sankey diagram represent? |
| A. | Torque vs speed |
| B. | Heat balance of the engine |
| C. | Air consumption vs speed |
| D. | ηbth vs brake power |
| Answer» C. Air consumption vs speed | |
| 350. |
What is volumetric efficiency? |
| A. | A measure of the power of the engine |
| B. | A measure of the speed of the engine |
| C. | A measure of pressure rise in the cylinder |
| D. | A measure of breathing capacity of the engine |
| Answer» E. | |