2.4
1.75
0.87
11.4
✅ The correct answer is option A.
Engineering
Boost your preparation with the latest Engineering MCQs with answers and explanations. Our collection covers civil engineering, electrical engineering, mechanical engineering, electronics, software engineering, and other core subjects. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, PEC exams, university entry tests, and job interviews. Practice online with updated Engineering MCQs to strengthen concepts, improve technical knowledge, and perform better in exams and recruitment tests.
3552. Potassic fertiliser is graded based on its __________ content.
KCl
K₂O
KNO₃
K₂SO₄
✅ The correct answer is option B.
3553. Which of the following is not a mixed fertiliser?
Nitrophosphate
Calcium ammonium nitrate (CAN)
Ammonium phosphate
None of these
✅ The correct answer is option B.
3554. Caking index of a coal is a measure of its
Abradability
Reactivity
Agglutinating (binding) properties
Porosity
✅ The correct answer is option C.
3555. Coke oven gas is stripped of its H₂S and mercaptans content by
Absorption in wash oil
Adsorption on bog iron bed
Bubbling it through dilute sulphuric acid
Adsorption on silica gel
✅ The correct answer is option B.
3556. With increases in pressure, the conversion of ammonium carbamate into urea
Increases
Decreases
Remains unaltered
Can either increase or decrease depends on biuret content
✅ The correct answer is option A.
3557. 75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.
3-Apr
1-Jun
3
4
✅ The correct answer is option C.
3558. The atomic number of a radioactive element is not changed, when it emits __________ rays.
α
β
γ
α & β
✅ The correct answer is option C.
3559. __________ gas is normally not used as a coolant in a nuclear reactor, because of its high neutron capture cross-section.
Nitrogen
Hydrogen
Helium
Carbon dioxide
✅ The correct answer is option A.
3560. Coolant used in a fast breeder reactor is
molten sodium
heavy water
ordinary water
helium
✅ The correct answer is option A.