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.
| 2201. |
Which of the options draws a relation between the preposition and manner? |
| A. | Fought among themselves |
| B. | Came before time |
| C. | Cut it with a knife |
| D. | Fought with courage |
| Answer» E. | |
| 2202. |
Which of these relations is not indicated by prepositions? |
| A. | Place |
| B. | Age |
| C. | Time |
| D. | Manner |
| Answer» C. Time | |
| 2203. |
For insulation to be properly effective in restricting heat transmission, the pipe radius r0 will be |
| A. | Greater than critical radius |
| B. | Less than critical radius |
| C. | Equal to critical radius |
| D. | Greater than or equal to critical radius |
| Answer» E. | |
| 2204. |
A pipe of outside diameter 20 mm is to be insulated with asbestos which has a mean thermal conductivity of 0.1 W/m degree. The local coefficient of convective heat to the surroundings is 5 W/square meter degree. Find the critical radius of insulation for optimum heat transfer from a pipe? |
| A. | 10 mm |
| B. | 20 mm |
| C. | 30 mm |
| D. | 40 mm |
| Answer» C. 30 mm | |
| 2205. |
A wire of radius 3 mm and 1.25 m length is to be maintained at 60 degree Celsius by insulating it by a material of thermal conductivity 0.175 W/m K. The temperature of surrounding is 20 degree Celsius with heat transfer coefficient 8.5 W/ m2 K. Find percentage increase in heat loss due to insulation? |
| A. | 134.46 % |
| B. | 124.23 % |
| C. | 100.00 % |
| D. | 12.55 % |
| Answer» B. 124.23 % | |
| 2206. |
A heat exchanger shell of outside radius 15 cm is to be insulated with glass wool of thermal conductivity 0.0825 W/m degree. The temperature at the surface is 280 degree Celsius and it can be assumed to remain constant after the layer of insulation has been applied to the shell. The convective film coefficient between the outside surface of glass wool and the surrounding air is estimated to be 8 W/m2 degree. What is the value of a critical radius? |
| A. | 9.31 mm |
| B. | 10.31 mm |
| C. | 11.31 mm |
| D. | 12.31 mm |
| Answer» C. 11.31 mm | |
| 2207. |
A cable of 10 mm outside is to be laid in an atmosphere of 25 degree Celsius (h = 12.5 W/m2 degree) and its surface temperature is likely to be 75 degree Celsius due to heat generated within it. How would the heat flow from the cable be affected if it is insulated with rubber having thermal conductivity k = 0.15 W/m degree? |
| A. | 43.80 W per meter length |
| B. | 53.80 W per meter length |
| C. | 63.80 W per meter length |
| D. | 73.80 W per meter length |
| E. | and its surface temperature is likely to be 75 degree Celsius due to heat generated within it. How would the heat flow from the cable be affected if it is insulated with rubber having thermal conductivity k = 0.15 W/m degree?a) 43.80 W per meter lengthb) 53.80 W per meter lengthc) 63.80 W per meter lengthd) 73.80 W per meter length |
| Answer» C. 63.80 W per meter length | |
| 2208. |
The mentioned image indicates______ tool. |
| A. | right handed finishing |
| B. | round nose |
| C. | right handed roughing |
| D. | none of the mentioned |
| Answer» B. round nose | |
| 2209. |
The mentioned image indicates_____ tool.a) round nose groovingb) round nose turningc) round corner formingd) none of the mentioned 13.The mentioned image indicates_____ tool. |
| A. | round nose groovingb) round nose turningc) round corner formingd) none of the mentioned 13.The mentioned image indicates_____ tool.a) round nose grooving |
| B. | round nose turningc) round corner formingd) none of the mentioned 13.The mentioned image indicates_____ tool.a) round nose groovingb) round nose turning |
| C. | round corner formingd) none of the mentioned 13.The mentioned image indicates_____ tool.a) round nose groovingb) round nose turningc) round corner forming |
| D. | none of the mentioned 13.The mentioned image indicates_____ tool.a) round nose groovingb) round nose turningc) round corner formingd) none of the mentionedView Answer |
| Answer» B. round nose turningc) round corner formingd) none of the mentioned 13.The mentioned image indicates_____ tool.a) round nose groovingb) round nose turning | |
| 2210. |
‘Parting-off’ – is suitable with the classification of cutting tool according to the______a) method of manufacturing the toolb) method of holding the toolc) method of using the toold) none of the mentioned 11.The mentioned image indicates_____ tool. |
| A. | method of manufacturing the toolb) method of holding the toolc) method of using the toold) none of the mentioned 11.The mentioned image indicates_____ tool.a) roughing tool |
| B. | method of holding the toolc) method of using the toold) none of the mentioned 11.The mentioned image indicates_____ tool.a) roughing toolb) facing tool |
| C. | method of using the toold) none of the mentioned 11.The mentioned image indicates_____ tool.a) roughing toolb) facing toolc) parting tool |
| D. | none of the mentioned 11.The mentioned image indicates_____ tool.a) roughing toolb) facing toolc) parting toold) none of the mentionedView Answer |
| Answer» D. none of the mentioned 11.The mentioned image indicates_____ tool.a) roughing toolb) facing toolc) parting toold) none of the mentionedView Answer | |
| 2211. |
‘Round nose’ – is suitable with the classification of cutting tool according to the______ |
| A. | method of holding tool |
| B. | method of holding tool |
| C. | method of the applying feed |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2212. |
‘Internal thread cutting’- is suitable with the classification of cutting tool according to the______ |
| A. | method of using the tool |
| B. | method of holding the tool |
| C. | method of manufacturing the tool |
| D. | none of the mentioned |
| Answer» B. method of holding the tool | |
| 2213. |
“Tool bit inserted in the (tool) holder and solid tool” – is included in the classification according to the_____ |
| A. | method of using tool |
| B. | method of manufacturing tool |
| C. | method of applying feed |
| D. | none of the mentioned |
| Answer» E. | |
| 2214. |
Lathe cutting tool can be classified according to_____ |
| A. | manufacturing of tool |
| B. | method of holding tool |
| C. | method of using tool |
| D. | all of the mentioned |
| Answer» E. | |
| 2215. |
IS 1199:1959 is for __________ |
| A. | Specification for standard sand for testing of cement |
| B. | Methods of samplingand analysis of concrete |
| C. | Specification for Portland-pozzolana cement: Part 2 Calcined clay based |
| D. | Methods of test for pozzolanicmaterials |
| Answer» B. Methods of samplingand analysis of concrete | |
| 2216. |
IS 650:1991 is for _____________ |
| A. | Specification for standard sand for testing of cement |
| B. | Methods of samplingand analysis of concrete |
| C. | Specification for pozzolana cement |
| D. | Methods of test for pozzolanicmaterials |
| Answer» B. Methods of samplingand analysis of concrete | |
| 2217. |
IS 1727:1967 is for ____________ |
| A. | Code of practice for general construction of plain and reinforced concrete for dams and other massive structures |
| B. | Specification for Portland pozzolana cement Part 1 Fly ash based |
| C. | Specification for Portland-pozzolana cement: Part 2 Calcined clay based |
| D. | Methods of test for pozzolanic materials |
| Answer» E. | |
| 2218. |
IS 1489(Part 2):1991 is for ______________ |
| A. | Code of practice for general construction of plain and reinforced concrete for dams and other massive structures |
| B. | Specification for Portland pozzolana cement Part 1 Flyash based |
| C. | Specification for Portland-pozzolana cement: Part 2 Calcined clay based |
| D. | Methods of test for pozzolanic materials |
| Answer» D. Methods of test for pozzolanic materials | |
| 2219. |
IS 1489(Part 1):1991 is for ___________ |
| A. | Code of practice for general construction of plain and reinforced concrete for dams and other massive structures |
| B. | Specification for Portland pozzolana cement Part 1 Flyash based |
| C. | Specification for Portland-pozzolana cement: Part 2 Calcined clay based |
| D. | Methods of test for pozzolanic materials |
| Answer» C. Specification for Portland-pozzolana cement: Part 2 Calcined clay based | |
| 2220. |
IS 457:1957 is for _____ |
| A. | Code of practice for general construction of plain and reinforced concrete for dams and other massive structures |
| B. | Specification for Portland pozzolana cement flyash based |
| C. | Specification for Portland pozzolana cement calcined clay based |
| D. | Methods of test for pozzolanic materials |
| Answer» B. Specification for Portland pozzolana cement flyash based | |
| 2221. |
IS code for Specification for ordinary Portland cement, 33 grade? |
| A. | IS 269:1989 |
| B. | IS 383:197 |
| C. | IS 455:1989 |
| D. | IS 456:2000 |
| Answer» B. IS 383:197 | |
| 2222. |
The radiation resistance dissipates same amount of power as it radiated by the antenna. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2223. |
Power radiated by half-wave dipole with maximum current amplitude 10A is ______ |
| A. | 3.65kΩ |
| B. | 3.650Ω |
| C. | 0.365kΩ |
| D. | 36.50Ω |
| Answer» B. 3.650Ω | |
| 2224. |
What is the radiation resistance of the antenna radiating at 5kW and having maximum current 2A? |
| A. | 25kΩ |
| B. | 2.5kΩ |
| C. | 0.25kΩ |
| D. | 2.5Ω |
| Answer» C. 0.25kΩ | |
| 2225. |
Radiation resistance doesn’t depend on direction of power radiated but depends on the frequency. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2226. |
Find the radiation resistance of a Hertzian dipole of length 1m and operating at a frequency 1MHz? |
| A. | 0.08Ω |
| B. | 8.8mΩ |
| C. | 8.8Ω |
| D. | 0.88Ω |
| Answer» C. 8.8Ω | |
| 2227. |
For a half-wave dipole with length λ/12, what is the antenna efficiency if the Radiation resistance is 2Ω? |
| A. | 0.73 |
| B. | 0.073 |
| C. | 0.37 |
| D. | 0.78 |
| Answer» B. 0.073 | |
| 2228. |
If the length of the dipole decreases, then the radiation resistance will________ |
| A. | increase |
| B. | decrease |
| C. | depends on current distribution |
| D. | not change |
| Answer» C. depends on current distribution | |
| 2229. |
What is the radiation resistance of a short dipole of length L? |
| A. | 20π2 \((\frac{L}{\lambda})^2\) |
| B. | 80π2 \((\frac{l}{\lambda})^2\) |
| C. | 40π2 \((\frac{l}{\lambda})^2\) |
| D. | 160π2 \((\frac{l}{\lambda})^2\) |
| Answer» B. 80π2 \((\frac{l}{\lambda})^2\) | |
| 2230. |
What is the radiation resistance of an antenna if input power to it is 1KW and current in it is 10A having a power loss of 200W? |
| A. | 10Ω |
| B. | 2Ω |
| C. | 12Ω |
| D. | 8Ω |
| Answer» E. | |
| 2231. |
What is the radiation resistance of an antenna if it radiates 1kW and current in it is Irms=10A? |
| A. | 0.1Ω |
| B. | 1Ω |
| C. | 10Ω |
| D. | 100Ω |
| Answer» D. 100Ω | |
| 2232. |
Which function should we use to sort the array in natural order? |
| A. | dsort() |
| B. | casesort() |
| C. | natcasesort() |
| D. | naturalsort() |
| Answer» D. naturalsort() | |
| 2233. |
Which of the functions is used to sort an array in descending order? |
| A. | sort() |
| B. | asort() |
| C. | rsort() |
| D. | dsort() |
| Answer» D. dsort() | |
| 2234. |
Which of the following are linked with Base System? |
| A. | ECM |
| B. | LAN |
| C. | ASC |
| D. | All of the mentioned |
| Answer» C. ASC | |
| 2235. |
Which of the following are linked with Fundamentals? |
| A. | Tactical Information |
| B. | Database |
| C. | Diagnostics |
| D. | All of the mentioned |
| Answer» E. | |
| 2236. |
Which of the following are part of Operator’s Console ? |
| A. | ASC |
| B. | Common Applications |
| C. | LAN |
| D. | All of the mentioned |
| Answer» B. Common Applications | |
| 2237. |
CelsiusTech is one of the leading suppliers of command and control systems which of following? |
| A. | Sweden |
| B. | France |
| C. | Portugal |
| D. | Spain |
| Answer» B. France | |
| 2238. |
In which of the following reactions, we observe the constant corrosion rate even with the increase in the corrosive concentration? |
| A. | Fe in H2SO4 |
| B. | Ni in NaOH |
| C. | Al in acetic acid and HNO3 |
| D. | 18Cr–8Ni in H2SO4 |
| Answer» C. Al in acetic acid and HNO3 | |
| 2239. |
In which of the following reactions, we observe an increase in corrosion rate with the increase in corrosive concentration? |
| A. | 18Cr–8Ni in HNO3 |
| B. | Ni in NaOH |
| C. | Pb in H2SO4 |
| D. | Fe in H2SO4 |
| Answer» E. | |
| 2240. |
The concentration of the corrosive medium increases with the increase in impurity ion concentration. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2241. |
What is the corrosion rate behavior of curve A with the increase in corrosive concentration, described in the given figure? |
| A. | Almost constant |
| B. | Exponential increase |
| C. | Exponential decrease |
| D. | First increases and then decreases |
| Answer» B. Exponential increase | |
| 2242. |
What is the corrosion rate behavior of curve B with the increase in corrosive concentration, described in the given figure? |
| A. | Exponential increases |
| B. | Exponential decreases |
| C. | Constant |
| D. | First increases and then decreases |
| Answer» E. | |
| 2243. |
In which of the following reactions, we observe the unaffected corrosion rate with the increase in temperature? |
| A. | 18Cr–8Ni in HNO3 |
| B. | 18Cr-8Ni in H2SO4 |
| C. | Ni in HCl |
| D. | Fe in HF |
| Answer» B. 18Cr-8Ni in H2SO4 | |
| 2244. |
In which of the following reactions, we observe the exponential increase in corrosion rate with an increase in temperature? |
| A. | 18Cr-8Ni in H2SO4 |
| B. | 18Cr-8Ni in HNO3 |
| C. | Ni in NaOH |
| D. | Monel in HF |
| Answer» B. 18Cr-8Ni in HNO3 | |
| 2245. |
What is the corrosion rate behavior of curve B with the increase in temperature, described in the given figure? |
| A. | Exponential increase |
| B. | Exponential decrease |
| C. | Constant up to high temperatures |
| D. | Slightly decreases |
| Answer» D. Slightly decreases | |
| 2246. |
What is the corrosion rate behavior of curve A with the increase in temperature, described in the given figure? |
| A. | Constant |
| B. | Exponential increase |
| C. | Exponential decreases |
| D. | Slightly decreases |
| Answer» C. Exponential decreases | |
| 2247. |
The rate of chemical reaction increases with an increase in temperature. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2248. |
In the figure below, C represents _________ |
| A. | Reveal |
| B. | Transom |
| C. | Threshold |
| D. | Rebate |
| Answer» C. Threshold | |
| 2249. |
_________ is the external jamb of a door. |
| A. | Reveal |
| B. | Rebate |
| C. | Frame |
| D. | Hold fast |
| Answer» B. Rebate | |
| 2250. |
__________ is a vertical member of the frame used to subdivide a door vertically. |
| A. | Panel |
| B. | Shutter |
| C. | Mullion |
| D. | Reveal |
| Answer» D. Reveal | |