MCQ Practice Quiz Chemical Engineering - Set 10

Quiz Questions - Set 10

---

01. An engineer's hammer is made of high __________ steel.

     (A) Carbon

     (B) Speed

     (C) Silicon

     (D) Chromium

---

02. The maximum axial compression stress during cold upsetting of a cylindrical rod of radius (r) occurs at

     (A) The outer edge of the rod

     (B) r/3 from the centre

     (C) r/2 from the centre

     (D) The centre

---

03. Hoope’s cell is predominantly used for the electrolytic refining of

     (A) Zinc

     (B) Copper

     (C) Aluminium

     (D) Tin

---

04. The suction and delivery pressure for a two stage compressor are 1 and 25 atm respectively. The intermediate stage pressure would be around __________ atm.

     (A) 5

     (B) 10

     (C) 15

     (D) 20

---

05. Air refrigeration cycle is used in the air crafts, because of

     (A) Low temperature encountered at high altitude

     (B) Its high heat transfer rate

     (C) Its low unit weight per ton of refrigeration

     (D) Its higher co-efficient of performance (COP)

---

06. The bulk modulus of a material with Poisson's ratio of 0.5 is equal to

     (A) 3 × Young's modulus

     (B) Young's modulus

     (C) Infinity

     (D) Zero

---

07. A balanced draught boiler furnace employs __________ draught fan.

     (A) Induced

     (B) Forced

     (C) Both 'a' & 'b'

     (D) Neither 'a' nor 'b'

---

08. Production of one ton of steel plate in a modern integrated steel plant in India consumes about __________ kWh of electricity.

     (A) 50

     (B) 250

     (C) 450

     (D) 850

---

09. The type of water filter normally employed/ preferred for treating small quantities of water in railway stations and individual industries is the __________ filter.

     (A) Rapid sand

     (B) Pressure

     (C) Gravity

     (D) Slow sand

---

10. Failure of a material is attributed to __________ if it fails below its yield point.

     (A) Impact loading

     (B) Fatigue

     (C) Creep

     (D) Straining

---

11. Heat treatment of steel is done to mainly change its __________ properties.

     (A) Physical

     (B) Chemical

     (C) Mechanical

     (D) Surface

---

12. A machine having assumed life of 20 years is purchased for Rs 32000/-. Its scrap value at the end of its life is Rs 8000/-. If the depreciation is calculated by diminishing balance method, then percentage reduction in its value at the end of first year is __________ percent.

     (A) 6.7

     (B) 7.6

     (C) 10.3

     (D) 15.2

---

13. All modes of heat transfer i.e., conduction, convection & radiation occur in case of the

     (A) Condensation of steam in a partial condenser

     (B) Boiler furnace

     (C) Insulated pipe car raying high pressure steam

     (D) None of these

---

14. The maximum value, which the residual stress in a material can reach is the __________ of the material.

     (A) Elastic limit

     (B) Plastic limit

     (C) Yield stress

     (D) Breaking stress

---

15. Pick out the wrong statement:

     (A) Soft water is more corrosive than that carrying calcium salts

     (B) The corrosion of brass condenser tubes handling brine solution is also termed as 'dezincification'

     (C) Non-annealed brass is highly susceptible to season cracking (i.e., inter-crystal corrosion due to internal stresses)

     (D) Pure copper is highly susceptible to stress corrosion

---

---

 Next Quiz Tests:

Set 01

Set 02

Set 03

Set 04

Set 05

Set 06

Set 07

Set 08

Set 09

Set 10

Set 11

Set 12

Set 13