Complete GATE CH 2021 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 28–30 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 10 of 22

Question 18

Open question
CHMSQ1 markNeeds review
The inherent characteristics of three control valves P, Q and R are shown in the figure.
Diagram for Chemical Engineering question 18

The CORRECT option(s)) is/are
Your answerSelect all correct options. You can choose more than one.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 19

Open question
CHNAT1 markNeeds review
A source placed at the origin of a circular sample holder (radius

) emits particles uniformly in all directions. A detector of length

has been placed along the perimeter of the sample holder. During an experiment, the detector registers 14 particles.
The total number of particles emitted during the experiment is __________.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Question 20

Open question
CHNAT1 markNeeds review

,

,

and

are vectors of length 4.




It is known that

is not a scalar multiple of

. Also,

is linearly independent of

and

. Further,

.
The rank of the matrix

is __________.

Log in to check the answer

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer