Sail E0 Webinar

MCQs

Total Questions : 164 | Page 16 of 17 pages
Question 151. In a jet engine, the air-fuel ratio is
  1.    30:1
  2.    40:1
  3.    50:1
  4.    60:1
 Discuss Question
Answer: Option D. -> 60:1
Answer: (d).60:1
Question 152. Which one of the following is the effect of blade shape on performance of a centrifugal compressor ?
  1.    Backward curved blades has poor efficiency
  2.    Backward curved blades lead to stable performance
  3.    Forward curved blades has higher efficiency
  4.    Forward curved blades produce lower pressure ratio
 Discuss Question
Answer: Option D. -> Forward curved blades produce lower pressure ratio
Answer: (d).Forward curved blades produce lower pressure ratio
Question 153. Which of the following bladings will give maximum pressure rise in a centrifugal compressor, assuming the same overall dimensions, blade inlet angle and rotational speeds ?
  1.    Forward curved blades
  2.    Backward curved blades
  3.    Radial blades
  4.    all of these
 Discuss Question
Answer: Option A. -> Forward curved blades
Answer: (a).Forward curved blades
Question 154. In an axial flow compressor, the ratio of pressure in theTOtor blades to the pressure rise in the compressor in one stage is known as
  1.    work factor
  2.    slip factor
  3.    degree of reaction
  4.    pressure coefficient
 Discuss Question
Answer: Option C. -> degree of reaction
Answer: (c).degree of reaction
Question 155. The actual volume of air delivered by a compressor, When reduced to the normal temperature and pressure conditions is called compressor capacity.
  1.    Yes
  2.    No
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> No
Answer: (b).No
Question 156. Only rocket engines can be propelled to space because
  1.    they can generate very high thrust
  2.    they have high propulsion efficiency
  3.    these engines can work on several fuels
  4.    they are not air-breathing engines
 Discuss Question
Answer: Option D. -> they are not air-breathing engines
Answer: (d).they are not air-breathing engines
Question 157. The compression ratio in a gas turbine is
  1.    4
  2.    1
  3.    9
  4.    12
 Discuss Question
Answer: Option B. -> 1
Answer: (b).1
Question 158. The maximum combustion pressure in gas turbine is __________ as compared to I.C. engine.
  1.    more
  2.    less
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option B. -> less
Answer: (b).less
Question 159. Intercooling in compressors results in saving of power in compressing given volume of air to a given pressure.
  1.    Correct
  2.    Incorrect
  3.    Can't say
  4.    None of these
 Discuss Question
Answer: Option A. -> Correct
Answer: (a).Correct
Question 160. In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston.
  1.    one stroke
  2.    two strokes
  3.    three strokes
  4.    four strokes
 Discuss Question
Answer: Option B. -> two strokes
Answer: (b).two strokes

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

DSP Combined 1 Free Revision Test SAIL JO E-0
GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0
BSP Plant Specific Review Test SAIL JO E-0
BSL Combined 1 Free Revision Test SAIL JO E-0
GFM Combined 1 Free Revision Test SAIL JO E-0