MCQOPTIONS
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MCQOPTIONS
This section includes 5314 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 2401. |
Which of the following specification is used in manufacturing fuselage, oil tank and wings of an aircraft? |
| A. | 1111-Z |
| B. | 2024-T4 |
| C. | 2011-X2 |
| D. | 1214-A |
| Answer» C. 2011-X2 | |
| 2402. |
What are the wheels of a landing great made of? |
| A. | Typical rubber |
| B. | Sensitive rubber |
| C. | Titanium alloy |
| D. | Thick rubber |
| Answer» E. | |
| 2403. |
Which of the following is not used to manufacture a wing-tip bow? |
| A. | Chrome-molybdenum |
| B. | Aluminium alloy |
| C. | Douglas fir |
| D. | Mild steel |
| Answer» D. Mild steel | |
| 2404. |
Bolts in an aircraft are made of _____________ |
| A. | nickel steel |
| B. | graphite |
| C. | aluminium |
| D. | iron |
| Answer» B. graphite | |
| 2405. |
Wood cannot be used to make any part of an aircraft. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2406. |
Metals like chrome-molybdenum steel are heated to a temperature of ____________ to make bushings. |
| A. | 500 or 750 psi |
| B. | 1000 psi |
| C. | 650,000 or 7000,000 psi |
| D. | 125,000 or 150,000 psi |
| Answer» E. | |
| 2407. |
Which of the following can be used to make seats in an aircraft? |
| A. | Magnesium alloy sheets |
| B. | Graphite |
| C. | Rubber |
| D. | Pure magnesium |
| Answer» B. Graphite | |
| 2408. |
Controls can be made using _____________ |
| A. | wood |
| B. | copper |
| C. | steel |
| D. | flaps |
| Answer» D. flaps | |
| 2409. |
Which of the following can be used as wing covering in an aircraft? |
| A. | Manganese alloy |
| B. | Carbon |
| C. | Titanium |
| D. | Aluminium alloy |
| Answer» E. | |
| 2410. |
What is the thickness of the sheets used in manufacturing oil tanks? |
| A. | 1.5 to 26 mm |
| B. | 0.889 to 1.2446 mm |
| C. | 5.9 to 10.21 mm |
| D. | 0.5 to 0.7 mm |
| Answer» C. 5.9 to 10.21 mm | |
| 2411. |
Magnesium and its alloys are suitable to use in the construction of helicopters. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2412. |
Which of the following materials is used in making aircraft windows? |
| A. | Thick glass |
| B. | Plexiglass |
| C. | Graphite |
| D. | Plane glass |
| Answer» C. Graphite | |
| 2413. |
What is the fuselage of an aircraft made of? |
| A. | Pure iron |
| B. | Acrylic |
| C. | Aluminium alloy |
| D. | Magnesium |
| Answer» D. Magnesium | |
| 2414. |
The traditional __________ door shutters have inevitable problems of wrapping, rotting, painting and maintenance. |
| A. | Metal |
| B. | Wooden |
| C. | Glass |
| D. | Plywood |
| Answer» C. Glass | |
| 2415. |
The _______ is the most common material for door and windows as it can be moulded in variety of shapes and can thus present a decent appearance. |
| A. | Wood |
| B. | Glass |
| C. | Plywood |
| D. | Metal |
| Answer» B. Glass | |
| 2416. |
For instance, the designation 6 WS 13 denotes a window opening with single shutter having width equal to 6 modulus i.e. _______ and height equal to 13 modulus i.e. _________ |
| A. | 600 mm, 13 mm |
| B. | 6 mm, 13000 mm |
| C. | 600 mm, 1300 mm |
| D. | 6 mm, 13 mm |
| Answer» D. 6 mm, 13 mm | |
| 2417. |
The BIS recommends that the size of a door frame and window frame should be derived after allowing a margin of ______ mm alround an opening for convenience of fixing. |
| A. | 2 mm |
| B. | 6 mm |
| C. | 5 mm |
| D. | 10 mm |
| Answer» E. | |
| 2418. |
The minimum width for __________ doors ____________ doors and doors in public building such as hospitals, library, etc., are 800 mm, 1 m and 1.2 meters respectively. |
| A. | Internal, External |
| B. | External, Internal |
| C. | Internal, Main |
| D. | External, Main |
| Answer» B. External, Internal | |
| 2419. |
The main function of _________ in a building is to serve as a connecting link between the various internal parts. |
| A. | Window |
| B. | Ventilator |
| C. | Door |
| D. | Opening |
| Answer» D. Opening | |
| 2420. |
A ___________ may be defined as an openable barrier secured in an opening left in a wall for the purpose of providing access to the user of the structure. |
| A. | Window |
| B. | Door |
| C. | Ventilator |
| D. | Lintel |
| Answer» C. Ventilator | |
| 2421. |
Beryllium is a ductile material, before turning brittle at ______ |
| A. | 100oC |
| B. | 200oC |
| C. | 400oC |
| D. | 500oC |
| Answer» E. | |
| 2422. |
The alpha-beta titanium alloy is heat treatable up to _______ |
| A. | 220oC |
| B. | 320oC |
| C. | 430oC |
| D. | 540oC |
| Answer» D. 540oC | |
| 2423. |
Which nickel alloy is used as a substitute in tableware and jewelry? |
| A. | Nickel-iron |
| B. | Nickel-copper |
| C. | Nickel-chromium |
| D. | Nickel-silver |
| Answer» E. | |
| 2424. |
Which of the following is consequence for proxy pattern? |
| A. | The Proxy pattern makes it possible to defer expensive operations until they are necessary (virtual proxies) |
| B. | Provides an elegant way to treat remote objects as if they were local (remote proxies) |
| C. | Provides a mechanism for implementing supplier access restrictions (protection or access proxies) |
| D. | All of the mentioned |
| Answer» E. | |
| 2425. |
Which of the following is incorrect with respect to the proxy pattern? |
| A. | The Proxy pattern should be used whenever the services directly provided by some object need to be managed or mediated in some way without changing the object’s interface |
| B. | Virtual proxies can be used to delay the creation or loading of large and time-consuming objects to preserve space and ensure rapid responses to requests |
| C. | Remote proxies can hide the fact that an object is not locally present,handling the communication necessary to access the remote real object |
| D. | None of the mentioned |
| Answer» E. | |
| 2426. |
A class (the adapter class) may be given a new interface by an adapter class in which of these ways? |
| A. | Class Adapter pattern |
| B. | Object Adapter pattern |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 2427. |
Which of the following is true for Adapter pattern? |
| A. | An adapter or wrapper is a component that provides a new interface for an existing component |
| B. | An Adapter or Wrapper pattern is a broker pattern that provides a new interface for existing software so that it can be reused |
| C. | Adaptation for reuse is an old technique that has been used since the beginning of software development |
| D. | All of the mentioned |
| Answer» E. | |
| 2428. |
Which is true for a symmetry boundary? |
| A. | Diffusive flux is non-zero |
| B. | Diffusive flux is zero |
| C. | Convective flux is zero |
| D. | Convective flux is non-zero |
| Answer» D. Convective flux is non-zero | |
| 2429. |
A symmetry boundary is treated the same as a wall boundary for this reason. |
| A. | There is flow across this boundary |
| B. | No convection flux across this boundary |
| C. | There is convection flux across this boundary |
| D. | No flow across this boundary |
| Answer» E. | |
| 2430. |
For a symmetry boundary, which is correct? |
| A. | Vn≠0, τnn=0 |
| B. | Vn≠0, τnn≠0 |
| C. | Vn=0, τnn≠0 |
| D. | Vn=0, τnn=0 |
| Answer» D. Vn=0, τnn=0 | |
| 2431. |
What is the shear force of a fluid (velocity \(\vec{u}\)) near the wall for a moving wall (velocity (\(\overrightarrow{u_{wall}}\)))? |
| A. | \(\vec{F}=-\mu\frac{\vec{u}}{\Delta y}\times area\) |
| B. | \(\vec{F}=-\mu\frac{\vec{u}-\overrightarrow{u_{wall}}}{\Delta y}\times area\) |
| C. | \(\vec{F}=-\mu\frac{\vec{u}-\overrightarrow{u_{wall}}}{\Delta y}\) |
| D. | \(\vec{F}=-\mu\frac{\vec{u}}{\Delta y}\) |
| Answer» C. \(\vec{F}=-\mu\frac{\vec{u}-\overrightarrow{u_{wall}}}{\Delta y}\) | |
| 2432. |
For no-slip condition, which of these is true regarding the pressure correction equation if the wall is at the bottom? |
| A. | an=0 |
| B. | aw=0 |
| C. | ae=0 |
| D. | as=0 |
| Answer» E. | |
| 2433. |
For inviscid flows, which is correct immediately near the wall? |
| A. | \(\vec{V} ≠ 0\) |
| B. | \(\vec{V} = 0\) |
| C. | \(\vec{V} > 0\) |
| D. | \(\vec{V} \lt 0\) |
| Answer» B. \(\vec{V} = 0\) | |
| 2434. |
Which of these is true for an impermeable wall? |
| A. | \(\vec{V}=0\) above the surface |
| B. | \(\vec{V}=0\) at the surface |
| C. | \(\vec{V}.\vec{n}=0\) at the surface |
| D. | \(\vec{V}.\vec{n}=0\) above the surface |
| Answer» D. \(\vec{V}.\vec{n}=0\) above the surface | |
| 2435. |
Which of these represents the temperature of the fluid layer immediately near the wall at a condition analogous to no-slip? Note: Tw is the temperature at the wall. |
| A. | T=-1 |
| B. | T=1 |
| C. | T=Tw |
| D. | T=0 |
| Answer» D. T=0 | |
| 2436. |
For a no-slip condition which of these about velocity components is true near the wall boundary? |
| A. | u=1, v=0, w=0 |
| B. | u=0, v=0, w=0 |
| C. | u=0, v=1, w=0 |
| D. | u=0, v=0, w=1 |
| Answer» C. u=0, v=1, w=0 | |
| 2437. |
The capillary pressure, transferred from grain to grain in soil may be also called as ____________ |
| A. | Inter granular pressure |
| B. | Contact pressure |
| C. | Effective pressure |
| D. | All of the mentioned |
| Answer» E. | |
| 2438. |
The size of interstices in a soil depends on ____________ |
| A. | Particle size |
| B. | Plasticity index |
| C. | Soil structure |
| D. | Angle of contact |
| Answer» D. Angle of contact | |
| 2439. |
When do the soil suction is reduced to zero value? |
| A. | Water content is reduced |
| B. | Soil is oven dry |
| C. | Dry soil is submerged |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 2440. |
Capillary tension is developed in saturated soil, when ___________ |
| A. | Soil is dry |
| B. | Water content is reduced |
| C. | Water content is increased |
| D. | Soil particle is large |
| Answer» C. Water content is increased | |
| 2441. |
The soil suction is maximum, when angle of contact(α) is _____________ |
| A. | α=0 |
| B. | α=90 |
| C. | α=60 |
| D. | α=1 |
| Answer» B. α=90 | |
| 2442. |
The pressure deficiency of held water in a capillary tube is termed as ____________ |
| A. | Soil suction and suction pressure |
| B. | Negative pressure |
| C. | None of the mentioned |
| D. | All of the mentioned |
| Answer» B. Negative pressure | |
| 2443. |
The pF value of 2 in soil mass represent ____________ |
| A. | Soil suction of 200 cm of water |
| B. | Suction pressure of 100 g/cm2 |
| C. | Soil suction of 100 cm of water |
| D. | Capillarity of 100 g/cm2 |
| Answer» D. Capillarity of 100 g/cm2 | |
| 2444. |
The maximum tensile stress of water in capillary tube is ___________ |
| A. | Proportional to the diameter of tube |
| B. | Inversely proportional to height of capillary rise |
| C. | Inversely proportional to the radius of meniscus |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 2445. |
The capillary tension or capillary potential can also be called as ___________ |
| A. | Pressure deficiency |
| B. | Pressure reduction |
| C. | Negative pressure |
| D. | All of the mentioned |
| Answer» E. | |
| 2446. |
revoke select on takes from amit;What does the above query perform? |
| A. | It revokes all authorizations from amit |
| B. | It revokes select authorization from amit |
| C. | It revokes takes authorization from amit |
| D. | It gives an error |
| Answer» C. It revokes takes authorization from amit | |
| 2447. |
The _________ statement is used in SQL to confer authorization. |
| A. | grant |
| B. | confer |
| C. | implement |
| D. | permit |
| Answer» B. confer | |
| 2448. |
What does the following statement do?create table temp_inst like institute |
| A. | It creates a new relation temp_inst with all the tuples and attributes of the institute relation |
| B. | It creates a new relation temp_inst with the same schema as that of the institute relation |
| C. | It creates a new relation named temp_inst with institute as its only attribute |
| D. | It does not create any relations and returns an error |
| Answer» C. It creates a new relation named temp_inst with institute as its only attribute | |
| 2449. |
Which of the following is an illegal data type in SQL |
| A. | number |
| B. | clob |
| C. | blob |
| D. | lint |
| Answer» E. | |
| 2450. |
What does p indicate in the following data type?time(p) |
| A. | The amount of delay that needs to be added to the time |
| B. | The number of fractional digits for the seconds |
| C. | The maximum number of allowed hours |
| D. | None of the mentioned |
| Answer» C. The maximum number of allowed hours | |